统计数组元素个数
$arr = array(
'1011,1003,1008,1001,1000,1004,1012',
'1009',
'1011,1003,1111'
);
$result = array();
foreach ($arr as $str) {
$str_arr = explode(',', $str);
foreach ($str_arr as $v) {
// $result[$v] = isset($result[$v]) ? $result[$v] : 0;
// $result[$v] = $result[$v] + 1;
$result[$v] = isset($result[$v]) ? $result[$v]+1 : 1;
}
}print_r($result);
//Array
(
[1011] => 2
[1003] => 2
[1008] => 1
[1001] => 1
[1000] => 1
[1004] => 1
[1012] => 1
[1009] => 1
[1111] => 1)
循环删除目录
function cleanup_directory($dir) {
foreach (new DirectoryIterator($dir) as $file) {
if ($file->isDir()) {
if (! $file->isDot()) {
cleanup_directory($file->getPathname());
}
} else {
unlink($file->getPathname());
}
}
rmdir($dir);
}3.无限极分类生成树
function generateTree($items){
$tree = array();
foreach($items as $item){
if(isset($items[$item['pid']])){
$items[$item['pid']]['son'][] = &$items[$item['id']];
}else{
$tree[] = &$items[$item['id']];
}
}
return $tree;
}
function generateTree2($items){
foreach($items as $item)
$items[$item['pid']]['son'][$item['id']] = &$items[$item['id']];
return isset($items[0]['son']) ? $items[0]['son'] : array();
}
$items = array(
1 => array('id' => 1, 'pid' => 0, 'name' => '安徽省'),
2 => array('id' => 2, 'pid' => 0, 'name' => '浙江省'),
3 => array('id' => 3, 'pid' => 1, 'name' => '合肥市'),
4 => array('id' => 4, 'pid' => 3, 'name' => '长丰县'),
5 => array('id' => 5, 'pid' => 1, 'name' => '安庆市'),
);
print_r(generateTree($items));
/**
* 如何取数据格式化的树形数据
*/
$tree = generateTree($items);
function getTreeData($tree){
foreach($tree as $t){
echo $t['name'].'<br>';
if(isset($t['son'])){
getTreeData($t['son']);
}
}
}4.数组排序 a - b 是数字数组写法 遇到字符串的时候就要
var test = ['ab', 'ac', 'bd', 'bc'];
test.sort(function(a, b) {
if(a < b) {
return -1;
}
if(a > b) {
return 1;
}
return 0;
});5.array_reduce
$raw = [1,2,3,4,5,];
// array_reduce 的第三个参数是 $result 的初始值
array_reduce($raw, function($result, $value) {
$result[$value] = $value;
return $result;
}, []);
// [1 => 1, 2 => 2, ... 5 => 5]
6.arraymap 闭包中只接受一个或者多个参数，闭包的参数数量和 arraymap 本身的参数数量必须一致
$input = ['key' => 'value'];
array_map(function($key, $value) {
echo $key . $value;
}, array_keys($input), $input)
// 'keyvalue'
$double = function($item) {
return 2 * $item;
}
$result = array_map($double, [1,2,3]);
// 2 4 67.繁殖兔子
$month = 12;
$fab = array();
$fab[0] = 1;
$fab[1] = 1;
for ($i = 2; $i < $month; $i++)
{
$fab[$i] = $fab[$i - 1] + $fab[$i - 2];
}
for ($i = 0; $i < $month; $i++)
{
echo sprintf("第{%d}个月兔子为：{%d}",$i, $fab[$i])."<br/>";
}8 .datetime
function getCurMonthFirstDay($date)
{
return date('Y-m-01', strtotime($date));
}
getCurMonthLastDay('2015-07-23')
function getCurMonthLastDay($date)
{
return date('Y-m-d', strtotime(date('Y-m-01', strtotime($date)) . ' +1 month -1 day'));
}9.加密解密
function encrypt($data, $key)
{
$key = md5($key);
$x = 0;
$len = strlen($data);
$l = strlen($key);
$char = '';
for ($i = 0; $i < $len; $i++)
{
if ($x == $l)
{
$x = 0;
}
$char .= $key{$x};
$x++;
}
$str = '';
for ($i = 0; $i < $len; $i++)
{
$str .= chr(ord($data{$i}) + (ord($char{$i})) % 256);
}
return base64_encode($str);
}
function decrypt($data, $key)
{
$key = md5($key);
$x = 0;
$data = base64_decode($data);
$len = strlen($data);
$l = strlen($key);
$char = '';
for ($i = 0; $i < $len; $i++)
{
if ($x == $l)
{
$x = 0;
}
$char .= substr($key, $x, 1);
$x++;
}
$str = '';
for ($i = 0; $i < $len; $i++)
{
if (ord(substr($data, $i, 1)) < ord(substr($char, $i, 1)))
{
$str .= chr((ord(substr($data, $i, 1)) + 256) - ord(substr($char, $i, 1)));
}
else
{
$str .= chr(ord(substr($data, $i, 1)) - ord(substr($char, $i, 1)));
}
}
return $str;
}10 . 多维数组降级
function array_flatten($arr) {
$result = [];
array_walk_recursive($arr, function($value) use (&$result) {
$result[] = $value;
});
return $result;
}
print_r(array_flatten([1,[2,3],[4,5]]));// [1,[2,3],[4,5]] => [1,2,3,4,5]
// var new_array = old_array.concat(value1[, value2[, ...[, valueN]]])
var test = [1,2,3,[4,5,6],[7,8]];
[].concat.apply([], test); // [1,2,3,4,5,6,7,8] 对于 test 数组中的每一个 value， 将它 concat 到空数组 [] 中去，而因为 concat 是 Array 的 prototype，所以我们用一个空 array 作载体
var test1 = [1,2,[3,[4,[5]]]];
function flatten(arr) {
return arr.reduce(function(pre, cur) {
if(Array.isArray(cur)) {
return flatten(pre.concat(cur));
}
return pre.concat(cur);
}, []);
}
// [1,2,3,4,5]11.json_encode中文
function json_encode_wrapper ($result)
{
if(defined('JSON_UNESCAPED_UNICODE')){
return json_encode($result,JSON_UNESCAPED_UNICODE|JSON_NUMERIC_CHECK);
}else {
return preg_replace(
array("#\\\u([0-9a-f][0-9a-f][0-9a-f][0-9a-f])#ie", "/\"(\d+)\"/",),
array("iconv('UCS-2', 'UTF-8', pack('H4', '\\1'))", "\\1"),
json_encode($result)
);
}
}12.二维数组去重
$arr = array(
array('id'=>'2','title'=>'...','ding'=>'1','jing'=>'1','time'=>'...','url'=>'...','dj'=>'...'),
array('id'=>'2','title'=>'...','ding'=>'1','jing'=>'1','time'=>'...','url'=>'...','dj'=>'...')
);
function about_unique($arr=array()){
/*将该种二维数组看成一维数组，则 该一维数组的value值有相同的则干掉只留一个，并将该一维 数组用重排后的索引数组返回，而返回的一维数组中的每个元素都是 原始key值形成的关联数组 */
$keys =array();
$temp = array();
foreach($arr[0] as $k=>$arrays) {
/*数组记录下关联数组的key值*/
$keys[] = $k;
}
//return $keys; /*降维*/
foreach($arr as $k=>$v) {
$v = join(",",$v); //降维
$temp[] = $v;
}
$temp = array_unique($temp); //去掉重复的内容
foreach ($temp as $k => $v){
/*再将拆开的数组按索引数组重新组装*/
$temp[$k] = explode(",",$v);
}
//return $temp; /*再将拆开的数组按关联数组key值重新组装*/
foreach($temp as $k=>$v) {
foreach($v as $kkk=>$ck) {
$data[$k][$keys[$kkk]] = $temp[$k][$kkk];
}
}
return $data;
}13.格式化字节大小
/**
* 格式化字节大小
* @param number $size 字节数
* @param string $delimiter 数字和单位分隔符
* @return string 格式化后的带单位的大小
* @author
*/
function format_bytes($size, $delimiter = '') {
$units = array('B', 'KB', 'MB', 'GB', 'TB', 'PB');
for ($i = 0; $size >= 1024 && $i < 6; $i++) $size /= 1024;
return round($size, 2) . $delimiter . $units[$i];
}14.3分钟前
/**
* 将指定时间戳转换为截止当前的xx时间前的格式 例如 return '3分钟前''
* @param string|int $timestamp unix时间戳
* @return string
*/
function time_ago($timestamp) {
$etime = time() - $timestamp;
if ($etime < 1) return '刚刚';
$interval = array (
12 * 30 * 24 * 60 * 60 => '年前 ('.date('Y-m-d', $timestamp).')',
30 * 24 * 60 * 60 => '个月前 ('.date('m-d', $timestamp).')',
7 * 24 * 60 * 60 => '周前 ('.date('m-d', $timestamp).')',
24 * 60 * 60 => '天前',
60 * 60 => '小时前',
60 => '分钟前',
1 => '秒前'
);
foreach ($interval as $secs => $str) {
$d = $etime / $secs;
if ($d >= 1) {
$r = round($d);
return $r . $str;
}
};
}15.身份证号
/**
* 判断参数字符串是否为天朝身份证号
* @param $id 需要被判断的字符串或数字
* @return mixed false 或 array[有内容的array boolean为真]
*/
function is_citizen_id($id) {
//长度效验 18位身份证中的X为大写
$id = strtoupper($id);
if(!(preg_match('/^\d{17}(\d|X)$/',$id) || preg_match('/^\d{15}$/',$id))) {
return false;
}
//15位老号码转换为18位 并转换成字符串
$Wi = array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1);
$Ai = array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');
$cardNoSum = 0;
if(strlen($id)==16) {
$id = substr(0, 6).'19'.substr(6, 9);
for($i = 0; $i < 17; $i++) {
$cardNoSum += substr($id,$i,1) * $Wi[$i];
}
$seq = $cardNoSum % 11;
$id = $id.$Ai[$seq];
}
//效验18位身份证最后一位字符的合法性
$cardNoSum = 0;
$id17 = substr($id,0,17);
$lastString = substr($id,17,1);
for($i = 0; $i < 17; $i++) {
$cardNoSum += substr($id,$i,1) * $Wi[$i];
}
$seq = $cardNoSum % 11;
$realString = $Ai[$seq];
if($lastString!=$realString) {return false;}
//地域效验
$oCity = array(11=>"北京",12=>"天津",13=>"河北",14=>"山西",15=>"内蒙古",21=>"辽宁",22=>"吉林",23=>"黑龙江",31=>"上海",32=>"江苏",33=>"浙江",34=>"安徽",35=>"福建",36=>"江西",37=>"山东",41=>"河南",42=>"湖北",43=>"湖南",44=>"广东",45=>"广西",46=>"海南",50=>"重庆",51=>"四川",52=>"贵州",53=>"云南",54=>"西藏",61=>"陕西",62=>"甘肃",63=>"青海",64=>"宁夏",65=>"新疆",71=>"台湾",81=>"香港",82=>"澳门",91=>"国外");
$City = substr($id, 0, 2);
$BirthYear = substr($id, 6, 4);
$BirthMonth = substr($id, 10, 2);
$BirthDay = substr($id, 12, 2);
$Sex = substr($id, 16,1) % 2 ;//男1 女0
//$Sexcn = $Sex?'男':'女';
//地域验证
if(is_null($oCity[$City])) {return false;}
//出生日期效验
if($BirthYear>2078 || $BirthYear<1900) {return false;}
$RealDate = strtotime($BirthYear.'-'.$BirthMonth.'-'.$BirthDay);
if(date('Y',$RealDate)!=$BirthYear || date('m',$RealDate)!=$BirthMonth || date('d',$RealDate)!=$BirthDay) {
return false;
}
return array('id'=>$id,'location'=>$oCity[$City],'Y'=>$BirthYear,'m'=>$BirthMonth,'d'=>$BirthDay,'sex'=>$Sex);
}16.获取二维数组中某个key的集合
$user = array( 0 => array( 'id' => 1, 'name' => '张三', 'email' => 'zhangsan@sina.com', ), 1 => array( 'id' => 2, 'name' => '李四', 'email' => 'lisi@163.com', ), 2 => array( 'id' => 5, 'name' => '王五', 'email' => '10000@qq.com', ), ...... );
$ids = array(); $ids = array_map('array_shift', $user);
$ids = array_column($user, 'id');//php5.5
$names = array(); $names = array_reduce($user, create_function('$v,$w', '$v[$w["id"]]=$w["name"];return $v;'));17.判断一个数是否为素数
function isPrime(number) {
// If your browser doesn't support the method Number.isInteger of ECMAScript 6,
// you can implement your own pretty easily
if (typeof number !== 'number' || !Number.isInteger(number)) {
// Alternatively you can throw an error.
return false;
}
if (number < 2) {
return false;
}
if (number === 2) {
return true;
} else if (number % 2 === 0) {
return false;
}
var squareRoot = Math.sqrt(number);
for(var i = 3; i <= squareRoot; i += 2) {
if (number % i === 0) {
return false;
}
}
return true;
}
function isPrime($n) {//TurkHackTeam AVP production
if ($n <= 3) {
return $n > 1;
} else if ($n % 2 === 0 || $n % 3 === 0) {
return false;
} else {
for ($i = 5; $i * $i <= $n; $i += 6) {
if ($n % $i === 0 || $n % ($i + 2) === 0) {
return false;
}
}
return true;
}
}18.闭包
var nodes = document.getElementsByTagName('button');
for (var i = 0; i < nodes.length; i++) {
nodes[i].addEventListener('click', (function(i) {
return function() {
console.log('You clicked element #' + i);
}
})(i));
}
//将函数移动到循环外部即可（创建了一个新的闭包对象）
function handlerWrapper(i) {
return function() {
console.log('You clicked element #' + i);
}
}
var nodes = document.getElementsByTagName('button');
for (var i = 0; i < nodes.length; i++) {
nodes[i].addEventListener('click', handlerWrapper(i));
}19.事件循环 Event Loop
function printing() {
console.log(1);
setTimeout(function() { console.log(2); }, 1000);
setTimeout(function() { console.log(3); }, 0);
console.log(4);
}
//即使setTimeout的延迟为0，其回调也会被加入到那些没有延迟的函数队列之后。
printing();//143220.字典排序
def mysort():
dic = {'a':31, 'bc':5, 'c':3, 'asd':4, 'aa':74, 'd':0}
dict= sorted(dic.iteritems(), key=lambda d:d[1], reverse = True)
print dict//[('aa', 74), ('a', 31), ('bc', 5), ('asd', 4), ('c', 3), ('d', 0)]
21.数值缩写
var abbr = function (number) {
var abbrList = ['', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y'];
var step = 1000;
var i = 0;
var j = abbrList.length;
while (number >= step && ++i < j) {
number = number / step;
}
if (i === j) {
i = j - 1;
}
return number + abbrList[i];
};22.数字千位分隔符
var format = function (number) {
return String(number).replace(/(\d)(?=(\d{3})+$)/g, '$1,');
};
23.实现随机颜色值
var randomColor = function () {
var letters = '0123456789ABCDEF';
var ret = '#';
for (var i = 0; i < 6; i++) {
ret += letters[Math.round(Math.random() * 15)];
}
return ret;
};
var randomColor = function () {
return '#' + Math.random().toString(16).substr(2, 6);
};24.时间格式化输出
//formatDate(new Date(1409894060000), 'yyyy-MM-dd HH:mm:ss 星期w') 2014-09-05 13:14:20 星期五
function formatDate(oDate, sFormation) {
var obj = {
yyyy:oDate.getFullYear(),
yy:(""+ oDate.getFullYear()).slice(-2),//非常精辟的方法
M:oDate.getMonth()+1,
MM:("0"+ (oDate.getMonth()+1)).slice(-2),
d:oDate.getDate(),
dd:("0" + oDate.getDate()).slice(-2),
H:oDate.getHours(),
HH:("0" + oDate.getHours()).slice(-2),
h:oDate.getHours() % 12,
hh:("0"+oDate.getHours() % 12).slice(-2),
m:oDate.getMinutes(),
mm:("0" + oDate.getMinutes()).slice(-2),
s:oDate.getSeconds(),
ss:("0" + oDate.getSeconds()).slice(-2),
w:['日', '一', '二', '三', '四', '五', '六'][oDate.getDay()]
};
return sFormation.replace(/([a-z]+)/ig,function($1){return obj[$1]});
}25.斐波那契数列
function fibonacci(n) {
if(n ==1 || n == 2){
return 1
}
return fibonacci(n - 1) + fibonacci(n - 2);
}26.数组去重
Array.prototype.distinct=function(){
var arr=[];
var obj={};
for(var i=0;i<this.length;i++){
if(obj[this[i]]==undefined)
obj[this[i]]=this[i];
else if(obj[this[i]])
arr.push(this[i]);
}
return arr;
}27.删除元素
function array_delete($array, $element) {
return array_diff($array, [$element]);
// if(($key = array_search($array, $element)) !== false) {
// unset($array[$key]);
// }
//$array = array_filter($array, function($e) use ($del_val) {
// return ($e !== $del_val);
//});
//$array = array(14,22,37,42,58,61,73,82,96,10);
//array_splice($array, array_search(58, $array ), 1);
}
array_delete( [312, 401, 1599, 3], 401 ) // returns [312, 1599, 3]
28.RandomString
def random_string(length):
return ''.join(random.choice(string.letters + string.digits) for i in xrange(length))
function generateRandomString($length = 10) {
$characters = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
$charactersLength = strlen($characters);
$randomString = '';
for ($i = 0; $i < $length; $i++) {
$randomString .= $characters[rand(0, $charactersLength - 1)];
}
return $randomString;
}
//$randomString = substr(str_shuffle("0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"), 0, $length);
//$string = bin2hex(openssl_random_pseudo_bytes(10));20 char long hexdec string29.保存文件
$ch = curl_init('http://example.com/image.php');
$fp = fopen('/my/folder/flower.gif', 'wb');
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_exec($ch);
curl_close($ch);
fclose($fp);
30.插入数组元素
function array_insert(&$array, $position, $insert)
{
if (is_int($position)) {
array_splice($array, $position, 0, $insert);
} else {
$pos = array_search($position, array_keys($array));
$array = array_merge(
array_slice($array, 0, $pos),
$insert,
array_slice($array, $pos)
);
}
}
$arr = [
"name" => [
"type" => "string",
"maxlength" => "30",
],
"email" => [
"type" => "email",
"maxlength" => "150",
],
];
array_insert(
$arr,
"email",
[
"phone" => [
"type" => "string",
"format" => "phone",
],
]
);
// ->
array (
'name' =>
array (
'type' => 'string',
'maxlength' => '30',
),
'phone' =>
array (
'type' => 'string',
'format' => 'phone',
),
'email' =>
array (
'type' => 'email',
'maxlength' => '150',
),
)31.验证ip
function validate_ip($ip)
{
if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE) === false)
return false;
if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_RES_RANGE) === false)
return false;
if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4) === false && filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6) === false)
return false;
return true;
}
function validate_ip($ip)
{
if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE) === false)
{
return false;
}
self::$ip = sprintf('%u', ip2long($ip)); // you seem to want this
return true;
}32.get ip
function get_ip_address(){
foreach (array('HTTP_CLIENT_IP', 'HTTP_X_FORWARDED_FOR', 'HTTP_X_FORWARDED', 'HTTP_X_CLUSTER_CLIENT_IP', 'HTTP_FORWARDED_FOR', 'HTTP_FORWARDED', 'REMOTE_ADDR') as $key){
if (array_key_exists($key, $_SERVER) === true){
foreach (explode(',', $_SERVER[$key]) as $ip){
$ip = trim($ip); // just to be safe
if (filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_NO_PRIV_RANGE | FILTER_FLAG_NO_RES_RANGE) !== false){
return $ip;
}
}
}
}
}33.选出最长的单词
function LongestWord(sen) {
var words = sen.match(/\w+/g);
if (words !== null) {
var maxWords = {
index: 0,
length: 0
};
for (var i = 0, length = words.length; i < length; i++) {
if (words[i].length > maxWords.length) {
maxWords = {
index: i,
length: words[i].length
}
}
}
return words[maxWords.index];
}
return words;
}34.map
var oldArr = [{first_name:"Colin",last_name:"Toh"},{first_name:"Addy",last_name:"Osmani"},{first_name:"Yehuda",last_name:"Katz"}];
function getNewArr(){
return oldArr.map(function(item,index){
item.full_name = [item.first_name,item.last_name].join(" ");
return item;
});
}
35.统计一个数组中有多少个不重复的单词
var arr = ["apple","orange","apple","orange","pear","orange"];
//https://github.com/es-shims/es5-shim
function getWordCnt(){
var obj = {};
for(var i= 0, l = arr.length; i< l; i++){
var item = arr[i];
obj[item] = (obj[item] +1 ) || 1;//obj[item]为undefined则返回1
}
return obj;
}
function getWordCnt(){
return arr.reduce(function(prev,next){
prev[next] = (prev[next] + 1) || 1;
return prev;
},{});
}36.约瑟夫环
function yuesefu($n,$m) {
$r=0;
for($i=2; $i<=$n; $i++) {
$r=($r+$m)%$i;
}
return $r+1;
}
echo yuesefu(10,3)."是猴王";37.判断一个字符串中的字符是否都在另一个中出现
function charsissubset($h, $n) {
return preg_match('/[^' . preg_quote($h) . ']/u', $n) ? 0 : 1;
}
echo charsissubset('abcddcba', 'abcde'); // false
echo charsissubset('abcddcba', 'abcd'); // true
echo charsissubset('abcddcba', 'badc'); // true
echo charsissubset('汉字', '字'); // true
echo charsissubset('汉字', '漢字'); // false38.add(2)(3)(4)
function add(a) {
var temp = function(b) {
return add(a + b);
}
temp.valueOf = temp.toString = function() {
return a;
};
return temp;
}
var ans = add(2)(3)(4);//9
function add(num){
num += ~~add;
add.num = num;
return add;
}
add.valueOf = add.toString = function(){return add.num};
var ans = add(3)(4)(5)(6); // 1839.打印出Fibonacci数
function fn(n) {
var a = [];
a[0] = 0, a[1] = 1;
for(var i = 2; i < n; i++)
a[i] = a[i - 1] + a[i - 2];
for(var i = 0; i < n; i++)
console.log(a[i]);
}40.把URL参数解析为一个对象
function parseQueryString(url) {
var obj = {};
var a = url.split('?');
if(a.length === 1) return obj;
var b = a[1].split('&');
for(var i = 0, length = b.length; i < length; i++) {
var c = b[i].split('=');
obj[c[0]] = c[1];
}
return obj;
}
var url = 'http://witmax.cn/index.php?key0=0&key1=1&key2=2';
var obj = parseQueryString(url);
console.log(obj.key0, obj.key1, obj.key2); // 0 1 2
41.判断数据类型
function isNumber(obj) {
return Object.prototype.toString.call(obj) === '[object Number]'
}//对于NaN也返回true
function isNumber(obj) {
return obj === +obj
}
// 判断字符串
function isString(obj) {
return obj === obj+''
}
// 判断布尔类型
function isBoolean(obj) {
return obj === !!obj
}42.javascript sleep
function sleep(numberMillis) {
var now = new Date();
var exitTime = now.getTime() + numberMillis;
while (true) {
now = new Date();
if (now.getTime() > exitTime)
return;
}
}43.爬虫
def splider():
# -*- coding:utf-8 -*-
#发送data表单数据
import urllib2
import urllib
url = "http://www.someserver.com/register.cgi"
values = {
'name' : 'Andrew',
'location' : 'NJU',
'language' : 'Python'
}
user_agent = 'Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)'
header = {'User-Agent' : user_agent}
data = urllib.urlencode(values) #data数据需要编码成标准形式
#print data
http_handler = urllib2.HTTPHandler(debuglevel = 1)#Debug log
https_handler = urllib2.HTTPSHandler(debuglevel = 1)
opener = urllib2.build_opener(http_handler, https_handler)
urllib2.install_opener(opener)
req = urllib2.Request(url, data) #发送请求同时传送data表单
#req = urllib2.Request(url, data, header) #url 表单数据 伪装头部
reponse = urllib2.urlopen(req, timeout=10) #接受反馈数据
html = reponse.read() #读取反馈数据
print response.info()
print response.getcode()
redirected = response.geturl() == url
"""
full_url = url + '?' + data
data = urllib2.open(full_url)
"""
#返回错误码, 200不是错误, 不会引起异常
headers = {
'Referer': 'http://www.cnbeta.com/articles'
}
proxy_handler = urllib2.ProxyHandler({"http" : 'http://some-proxy.com:8080'})
opener = urllib2.build_opener(proxy_handler)
urllib2.install_opener(opener) #urllib2.install_opener() 会设置 urllib2 的全局 opener
req = urllib2.Request(
url = 'http://secure.verycd.com/signin/*/http://www.verycd.com/',
data = post_data,
headers = headers
)
try:
urllib2.urlopen(req)
except urllib2.HTTPError, e:
print e.code
#print e.read()44.判断数据类型
function type(o) {
var t, c, n;
if (o === null)
return "null";
if (o !== o)
return "nan";
if ((t = typeof o) !== "object")
return t; // 识别原始值的类型和函数
if ((c = classof(o)) !== "Object")
return c; // 识别出大多数内置类型
if (o.constructor && typeof o.constructor === "function" &&
(n = o.constructor.getName()))
return n; //如果对象构造函数名字存在, 则返回
return "Object"; // 无法识别类型返回"Object"
}
function classof(o) {
return Object.prototype.toString.call(o).slice(8, -1);
}
Function.prototype.getName = function() {
if ("name" in this)
return this.name;
return this.name = this.toString().match(/function\s*([^(]*)\(/)[1];
}45.实现千分位分隔
function mysplit(s){
if(/[^0-9\.]/.test(s)) return "invalid value";
s=s.replace(/^(\d*)$/,"$1.");
s=(s+"00").replace(/(\d*\.\d\d)\d*/,"$1");
s=s.replace(".",",");
var re=/(\d)(\d{3},)/;
while(re.test(s))
s=s.replace(re,"$1,$2");
s=s.replace(/,(\d\d)$/,".$1");
return "￥" + s.replace(/^\./,"0.")
}46.随机产生颜色
function randomVal(val){
return Math.floor(Math.random()*(val + 1));
}
function randomColor(){
return 'rgb(' + randomVal(255) + ',' + randomVal(255) + ',' + randomVal(255) + ')';
}47.生成随机的IP地址，规则类似于192.168.11.0/24
RANDOM_IP_POOL=['192.168.10.222/0']
def __get_random_ip():
str_ip = RANDOM_IP_POOL[random.randint(0,len(RANDOM_IP_POOL) - 1)]
str_ip_addr = str_ip.split('/')[0]
str_ip_mask = str_ip.split('/')[1]
ip_addr = struct.unpack('>I',socket.inet_aton(str_ip_addr))[0]
mask = 0x0
for i in range(31, 31 - int(str_ip_mask), -1):
mask = mask | ( 1 << i)
ip_addr_min = ip_addr & (mask & 0xffffffff)
ip_addr_max = ip_addr | (~mask & 0xffffffff)
return socket.inet_ntoa(struct.pack('>I', random.randint(ip_addr_min, ip_addr_max)))48.倒计时
var total = 500;
var timer = null;
var tiktock = document.getElementById('tiktock');
var btn = document.getElementById('btn');
function countdown(){
timer = setInterval(function(){
total--;
if (total<=0) {
clearInterval(timer);
tiktock.innerHTML= "0:00";
}else{
var ss = Math.floor(total/100);
var ms = total-Math.floor(total/100)*100;
tiktock.innerHTML=ss + ":" + ms;
}
},10);
};
btn.addEventListener('click', countdown, false);
49.[1,2,3] ->'{1,2,3}'
class intSet(object):
def __init__(self):
# creat an empty set of integers
self.vals = []
def insert(self, e):
# assume e is an interger, and insert it
if not(e in self.vals):
self.vals.append(e)
def member(self, e):
return e in self.vals
def remove(self, e):
try:
self.vals.remove(e)
except:
raise ValueError(str(e) + 'not found')
def __str__(self):
# return a string representation of self
self.vals.sort()
return "{" + ','.join([str(e) for e in self.vals]) + "}"50.转义过滤
//纯数字的参数intval强制取整
//其他参数值进行过滤或者转义
//filter_input() 函数来过滤一个 POST 变量
if (!filter_input(INPUT_POST, 'email', FILTER_VALIDATE_EMAIL))
{
echo "E-Mail is not valid";
}
else
{
echo "E-Mail is valid";
}
protected function zaddslashes($string, $force = 0, $strip = FALSE)
{
if (!defined('MAGIC_QUOTES_GPC'))
{
define('MAGIC_QUOTES_GPC', '');
}
if (!MAGIC_QUOTES_GPC || $force)
{
if (is_array($string)) {
foreach ($string as $key => $val)
{
$string[$key] = $this->zaddslashes($val, $force, $strip);
}
}
else
{
$string = ($strip ? stripslashes($string) : $string);
$string = htmlspecialchars($string);
}
}
return $string;
}51.构造IP
function getIPaddress()
{
$IPaddress = '';
if (isset($_SERVER)) {
if (isset($_SERVER["HTTP_X_FORWARDED_FOR"])) {
$IPaddress = $_SERVER["HTTP_X_FORWARDED_FOR"];
} else if (isset($_SERVER["HTTP_CLIENT_IP"])) {
$IPaddress = $_SERVER["HTTP_CLIENT_IP"];
} else {
$IPaddress = $_SERVER["REMOTE_ADDR"];
}
} else {
if (getenv("HTTP_X_FORWARDED_FOR")) {
$IPaddress = getenv("HTTP_X_FORWARDED_FOR");
} else if (getenv("HTTP_CLIENT_IP")) {
$IPaddress = getenv("HTTP_CLIENT_IP");
} else {
$IPaddress = getenv("REMOTE_ADDR");
}
}
return $IPaddress;
}
function curlPost($url, $post='', $autoFollow=0){
$ch = curl_init();
$user_agent = 'Safari Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_1) AppleWebKit/537.73.11 (KHTML, like Gecko) Version/7.0.1 Safari/5
curl_setopt($ch, CURLOPT_USERAGENT, $user_agent);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('X-FORWARDED-FOR:61.135.169.125', 'CLIENT-IP:'.getIPaddress())); //构造IP
curl_setopt($ch, CURLOPT_REFERER, "http://www.baidu.com/"); //构造来路
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
if($autoFollow){
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); //启动跳转链接
curl_setopt($ch, CURLOPT_AUTOREFERER, true); //多级自动跳转
}
//
if($post!=''){
curl_setopt($ch, CURLOPT_POST, 1);//post提交方式
curl_setopt($ch, CURLOPT_POSTFIELDS, $post);
}
$output = curl_exec($ch);
curl_close($ch);
return $output;
}52.文件名生成唯一
function unique_filename() {
$time = !empty($_SERVER['REQUEST_TIME_FLOAT']) ? $_SERVER['REQUEST_TIME_FLOAT'] : mt_rand();
$addr = !empty($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : mt_rand();
$port = !empty($_SERVER['REMOTE_PORT']) ? $_SERVER['REMOTE_PORT'] : mt_rand();
$ua = !empty($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : mt_rand();
return md5(uniqid(mt_rand(), true).$time.$addr.$port.$ua.mt_rand());
}
53.PHP实现钩子和插件系统
/**
* Attach (or remove) multiple callbacks to an event and trigger those callbacks when that event is called.
* 绑定或移除多个回调函数到事件,当事件被调用时触发回调函数.
*
* @param string $event name
* @param mixed $value the optional value to pass to each callback
* @param mixed $callback the method or function to call - FALSE to remove all callbacks for event
*/
function event($event, $value = NULL, $callback = NULL) {
static $events;
if($callback !== NULL) {
if($callback) {
$events[$event][] = $callback; // 添加事件
} else {
unset($events[$event]); // 移除事件里所有的回调函数
}
} else if(isset($events[$event])) {
foreach($events[$event] as $function) {
$value = call_user_func($function, $value); // 调用事件
}
return $value;
}
}
// 添加事件
event('filter_text', NULL, function($text) { return htmlspecialchars($text); });
event('filter_text', NULL, function($text) { return nl2br($text); });
// 移除事件里所有的回调函数
// event('filter_text', NULL, FALSE);
// 调用事件
$text = event('filter_text', $_POST['text']);54.字符串首字母大写的实现方式
String.prototype.firstUpperCase = function(){
return this.replace(/\b(\w)(\w*)/g, function($0, $1, $2) {
return $1.toUpperCase() + $2.toLowerCase();
});
}
//这只能改变字符串首字母
String.prototype.firstUpperCase=function(){
return this.replace(/^\S/,function(s){return s.toUpperCase();});
}55.获取url参数
function getQueryString(key){
var reg = new RegExp("(^|&)"+key+"=([^&]*)(&|$)");
var result = window.location.search.substr(1).match(reg);
return result?decodeURIComponent(result[2]):null;
}
function getRequest() {
var url = window.location.search; //获取url中"?"符后的字串
var theRequest = new Object();
if (url.indexOf("?") != -1) {
var str = url.substr(1);
strs = str.split("&");
for(var i = 0; i < strs.length; i ++) {
theRequest[strs[i].split("=")[0]]=decodeURI(strs[i].split("=")[1]);
}
}
return theRequest;
}56.过滤
var array = [
{
"title": 123,
"num": 1,
"type": [{"name": 'A', "num": 1}, {"name": 'B', "num": 1}, {"name": 'C', "num": 0}]
}, {
"title": 321,
"num": 1,
"type": [{"name": 'D', "num": 0}, {"name": 'E', "num": 1}, {"name": 'F', "num": 0}]
}];
array.forEach(function (x) {
x.type = x.type.filter(function (y) {
return y.num != 0;
});
});
57.随机生成-50到50之间的不包括0的整数
function my_rand(){
$num = mt_rand(1, 50);
$rand = mt_rand(1, 10);
return $rand > 4 ? $num : -$num;//控制生成正负数的比例为4：6
}58.时间对比
function compareDate(date1, date2){
var difArr, unitArr;
date1 = new Date(date1);
date2 = new Date(date2);
difArr = [date1.getFullYear() - date2.getFullYear(), date1.getMonth() -date2.getMonth(),date1.getDate() - date2.getDate(),date1.getHours() - date2.getHours(), date1.getMinutes() - date2.getMinutes(),date1.getSeconds() - date2.getSeconds()];
unitArr = ['年','月','日','时','分','秒']
for(var i = 0; i < 6;i++){
if(difArr[i] !== 0){
return Math.abs(difArr[i]) + unitArr[i];
}
}
}59.数组去重
//传入数组
function unique(arr){
var tmpArr = [];
for(var i=0; i<arr.length; i++){
//如果当前数组的第i已经保存进了临时数组，那么跳过，
//否则把当前项push到临时数组里面
if(tmpArr.indexOf(arr[i]) == -1){
tmpArr.push(arr[i]);
}
}
return tmpArr;
}
60.继承
/*
* 基类，定义属性
*/
function Person(name, age) {
this.name = name;
this.age = age;
}
/*
* 基类，定义方法
*/
Person.prototype.selfIntroduce = function () {
console.log("name: " + this.name);
console.log("age: " + this.age);
}
/*
* 子类，定义子类的属性
*/
function Student(name, age, school) {
// 调用基类的构造函数
Person.call(this, name, age);
this.school = school;
}
// 使子类继承基类
Student.prototype = new Person();
/*
* 定义子类的方法
*/
Student.prototype.goToSchool = function() {
// some code..
}
/*
* 扩展并调用了超类的方法
*/
Student.prototype.selfIntroduce = function () {
Student.prototype.__proto__.selfIntroduce.call(this);
console.log("school: " + this.school);
}
var student = new Student("John", 22, "My School");
student.selfIntroduce();
/**
* utf8字符转换成Unicode字符
* @param [type] $utf8_str Utf-8字符
* @return [type] Unicode字符
*/
function utf8_str_to_unicode($utf8_str) {
$unicode = 0;
$unicode = (ord($utf8_str[0]) & 0x1F) << 12;
$unicode |= (ord($utf8_str[1]) & 0x3F) << 6;
$unicode |= (ord($utf8_str[2]) & 0x3F);
return dechex($unicode);
}
/**
* Unicode字符转换成utf8字符
* @param [type] $unicode_str Unicode字符
* @return [type] Utf-8字符
*/
function unicode_to_utf8($unicode_str) {
$utf8_str = '';
$code = intval(hexdec($unicode_str));
//这里注意转换出来的code一定得是整形，这样才会正确的按位操作
$ord_1 = decbin(0xe0 | ($code >> 12));
$ord_2 = decbin(0x80 | (($code >> 6) & 0x3f));
$ord_3 = decbin(0x80 | ($code & 0x3f));
$utf8_str = chr(bindec($ord_1)) . chr(bindec($ord_2)) . chr(bindec($ord_3));
return $utf8_str;
}
62.gzip编码
function curl_get($url, $gzip=false){
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl, CURLOPT_CONNECTTIMEOUT, 10);
if($gzip) curl_setopt($curl, CURLOPT_ENCODING, "gzip"); // 关键在这里
$content = curl_exec($curl);
curl_close($curl);
return $content;
}
$url = 'http://api.stackexchange.com/2.2/tags?order=asc&sort=popular&site=stackoverflow&tag=qt';
//$data = file_get_contents("compress.zlib://".$url);63.Python中文时间
#!/usr/bin/env
# -*- coding: utf-8 -*-
from datetime import datetime
nt=datetime.now()
print(nt.strftime('%Y年%m月%d日 %H时%M分%S秒').decode('utf-8'))#2015年08月10日 11时25分04秒
print(nt.strftime('%Y{y}%m{m}%d{d}').format(y='年', m='月', d='日'))64.list分组,按照下标顺序分成3组：[3, 8, 9] [4, 1, 10] [6, 7, 2, 5]
a=[1,2,3,4,5,6,7,8,9,10]
[a[i:i+3] for i in xrange(0,len(a),3)]64.curl上传文件
$ch = curl_init();
$data = array('name' => 'Foo', 'file' => '@/home/vagrant/test.png');
curl_setopt($ch, CURLOPT_URL, 'http://localhost/test/curl/load_file.php');
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_SAFE_UPLOAD, false); // 5.6 给改成 true了, 弄回去
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_exec($ch);
65.IP地址转换为整数型
$ipArr = explode('.',$_SERVER['REMOTE_ADDR']);
$ip = $ipArr[0] * 0x1000000
+ $ipArr[1] * 0x10000
+ $ipArr[2] * 0x100
+ $ipArr[3];
//数字型的IP转为字符型:
$ipVal = $row['client_IP'];
$ipArr = array(
0 => floor( $ipVal / 0x1000000) );
$ipVint = $ipVal-($ipArr[0]*0x1000000); // for clarity
$ipArr[1] = ($ipVint & 0xFF0000) >> 16;
$ipArr[2] = ($ipVint & 0xFF00 ) >> 8;
$ipArr[3] = $ipVint & 0xFF;
$ipDotted = implode('.', $ipArr);66.保存base64图片
$base64_url = 'data:image/jpeg;base64,xxxxxxxxxxxxxxxxxxxxxx';
$base64_body = substr(strstr($base64_url,','),1);
$data= base64_decode($base64_body );
//存储or创建图片：
file_put_contents($file_path,$data);
或$image = imagecreatefromstring($data);
$size = getimagesizefromstring ( $data);var_dump($size);
//读取图片文件，转换成base64编码格式
$image_file = 'test.jpg';
$image_info = getimagesize($image_file);
$base64_image_content = "data:{$image_info['mime']};base64," . chunk_split(base64_encode(file_get_contents($image_file)));
//保存base64字符串为图片
//匹配出图片的格式
if (preg_match('/^(data:\s*image\/(\w+);base64,)/', $base64_image_content, $result)){
$type = $result[2];
$new_file = "./test.{$type}";
if (file_put_contents($new_file, base64_decode(str_replace($result[1], '', $base64_image_content)))){
echo '新文件保存成功：', $new_file;
}
}
?>
<img src="<?php echo $base64_image_content;?>" />67.日志记录print_r( $value, true )
/**
错误日志类
*/
class C_Log
{
/**
日志保存目录
@var string
*/
private $path = '';
/**
只能运行一个实例
@var [type]
*/
private static $instance;
/**
构造函数
初始化日志文件地址
*/
function __construct($path)
{
$this->path = $path;
}
public function logPrint($name,$value)
{
//获取时间
$_o = date('Y-m-d H:m:s',time())."\r\n";
$_o .= "==". $name . "==";
//打印内容
if( is_array( $value ) || is_object( $value ) ){
$_o .= print_r( $value, true ). "\r\n";
} else {
$_o .= $value. "\r\n";
}
//输出到文件
$this->_log($_o);
}
/**fdf
打印日志
@return [type] [description]
*/
private function _log($log){
error_log($log,3,$this->path);
}
/**
输出日志
@return [type] [description]
*/
public static function log($name, $value)
{
if (empty(self::$instance)) {
self::$instance = new C_Log(__DIR__."/error_log.log");
}
self::$instance->logPrint($name, $value);
}
}
68.过滤子类
function getByClass(parent, classname) {
var tags = parent.getElementsByTagName('*');
return [].filter.call(tags, function(t) {
return t.classList.contains(classname);
});
}
//
function getByClass(parent, classname) {
return parent.querySelectorAll("." + classname);
}69.JSON.stringify
function setProp(obj) {
for (var p in obj) {
switch (typeof (obj[p])) {
case 'object':
setProp(obj[p]);
break;
case 'undefined':
obj[p] = '';
break;
}
}
return obj;
}
JSON.stringify(setProp({ a: 1, b: 2, c: undefined }));//{"a":1,"b":2,"c":""}
70.判断用户的IP是否局域网IP
function is_local_ip($ip_addr = null) {
if (is_null($ip_addr)) {
$ip_addr = $_SERVER['REMOTE_ADDR'];
}
$ip = ip2long($ip_addr);
return $ip & 0xffff0000 == 0xc0a80000 // 192.168.0.0/16
|| $ip & 0xfff00000 == 0xac100000 // 172.16.0.0/12
|| $ip & 0xff000000 == 0xa0000000 // 10.0.0.0/8
|| $ip & 0xff000000 == 0x7f000000 // 127.0.0.0/8
;
}71.遍历出当月的所有日子和星期
var d = new Date(); // 这是当天
d.setDate(1); // 这就是1号
var weekday = d.getDay(); // 1号星期几，从星期天为0开始
d.setMonth(d.getMonth() + 1);
d.setDate(0); // 这两句得到最当月最后一天
var end = d.getDate(); // 最后一天的日，比如8月就是31
var days = [];
for (var i = 0; i < end; i++) {
days[i] = {
day: i + 1,
week: (weekday + i) % 7
}
}
console.log(days);72.Downloading Data From localStorage
var myData = {
'a': 'a',
'b': 'b',
'c': 'c'
};
// add it to our localstorage
localStorage.setItem('data', JSON.stringify(myData));
// encode the data into base64
base64 = window.btoa(localStorage.getItem('data'));
// create an a tag
var a = document.createElement('a');
a.href = 'data:application/octet-stream;base64,' + base64;
a.innerHTML = 'Download';
// add to the body
document.body.appendChild(a);
73."数据类型"判断函数
function datatypeof(arg){
return Object.prototype.toString.call(arg).match(/\[object\s(\w+)\]/)[1];
}74.二维数组去除重复，重复值相加
$arr = array(
array('id' => 123, 'name' => '张三', 'amount'=>'1'),
array('id' => 123, 'name' => '李四', 'amount' => '1'),
array('id' => 124, 'name' => '王五', 'amount' => '1'),
array('id' => 125, 'name' => '赵六', 'amount' => '1'),
array('id' => 126, 'name' => '赵六', 'amount' => '2'),
array('id' => 126, 'name' => '赵六', 'amount' => '2')
);
$new = array();
foreach($arr as $row){
if(isset($new[$row['name']])){
$new[$row['name']]['amount'] += $row['amount'];
}else{
$new[$row['name']] = $row;
}
}
75.含有从属关系的元素重新排列
$arr = array(
array('id'=>21, 'pid'=>0, 'name'=>'aaa'),
array('id'=>22, 'pid'=>0, 'name'=>'bbb'),
array('id'=>23, 'pid'=>0, 'name'=>'ccc'),
array('id'=>24, 'pid'=>23, 'name'=>'ddd'),
array('id'=>25, 'pid'=>23, 'name'=>'eee'),
array('id'=>26, 'pid'=>22, 'name'=>'fff'),
);
$temp=[];
foreach ($arr as $item)
{
list($id,$pid,$name) = array_values($item); // 取出数组的值并分别生成变量
if(array_key_exists($pid, $temp))
// 检查临时数组$temp中是否存在键名与$pid的值相同的键
{
$temp[$pid]['child'][]=array('id'=>$id,'pid'=>$pid,'name'=>$name);
// 如果存在则新增数组至临时数组中键名为 $pid 的子元素 child 内
}else
$temp[$id]=array('id'=>$id,'pid'=>$pid,'name'=>$name);
// 如果不存在则新增数组至临时数组中并设定键名为 $id
}
$array = array_values($temp);
// 将临时数组中以 $id 为键名的键修改为数字索引
echo "<pre>";
print_r($array);
//or
foreach ($arr as $item)
{
if (array_key_exists($item['pid'], $temp))
{
$temp[$item['pid']]['child'][]=$item;
}else
$temp[$item['id']]=$item;
}76.随机中文字符
//正则表达式匹配中文[\u4e00-\u9fa5]
//parseInt("4E00",16) 19968 parseInt("9FA5",16);20901
var randomHz=function(){
eval( "var word=" + '"\\u' + (Math.round(Math.random() * 20901) + 19968).toString(16)+'"');
return word;
}
for(i=0;i<100;i++){
console.log(randomHz());
}77.jQuery解析url
$(document).ready(function () {
var url = 'http://iwjw.com/codes/code-repository?id=12#top';
var a = $('<a>', { href: url});
var sResult = '<b>Protocol:</b> ' + a.prop('protocol') + '<br>' + '<b>Host name: </b>' + a.prop('hostname') + '<br>'
+ '<b>Path: </b>' + a.prop('pathname') + '<br>'
+ '<b>Query: </b>' + a.prop('search') + '<br>'
+ '<b>Hash: </b>' + a.prop('hash');
$('span').html(sResult);
});var arr1 = ['a'];
var arr2 = ['b', 'c'];
var arr3 = ['c', ['d'], 'e', undefined, null];
var concat = (function(){
// concat arr1 and arr2 without duplication.
var concat_ = function(arr1, arr2) {
for (var i=arr2.length-1;i>=0;i--) {
arr1.indexOf(arr2[i]) === -1 ? arr1.push(arr2[i]) : 0;
}
};
// concat arbitrary arrays.
// Instead of alter supplied arrays, return a new one.
return function(arr) {
var result = arr.slice();
for (var i=arguments.length-1;i>=1;i--) {
concat_(result, arguments[i]);
}
return result;
};
}());
执行：concat(arr1, arr2, arr3)
返回：[ 'a', null, undefined, 'e', [ 'd' ], 'c', 'b' ]
var merge = function() {
return Array.prototype.concat.apply([], arguments)
}
merge([1,2,4],[3,4],[5,6]);
//[1, 2, 4, 3, 4, 5, 6]79.字节转化
function convert($size)
{
$unit = array('b', 'kb', 'mb', 'gb', 'tb', 'pb');
return @round($size / pow(1024, ($i = floor(log($size, 1024)))), 2) . ' ' . $unit[$i];
}
echo convert(memory_get_usage());
function cacheMem($key)
{
static $mem = null;
if ($mem === null) {
$mem = new Memcache();
$mem->connect('127.0.0.1', 11211);
}
$data = $mem->get($key);
if (empty($data)) {
$data = date('Y-m-d H:i:s');
$mem->set($key, $data);
}
return $data;
}
python
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