有可能我们用的一些框架已经帮助我们封装好了这些方法，我们平常经常用到获取ip地址、创建目录之类的方法，但是我还是想摘出来放在下面，可能大家已经都已经熟悉了。
<?php
/**
* 系统助手类
*
* @author shuguang <5565907@qq.com>
* @copyright Copyright (c) 2007-2013 bagesoft. All rights reserved.
* @link http://www.bagecms.com
* @package BageCMS.Tools
* @license http://www.bagecms.com/license
* @version v3.1.0
*/
class XUtils {
/**
* 友好显示var_dump
*/
static public function dump( $var, $echo = true, $label = null, $strict = true ) {
$label = ( $label === null ) ? '' : rtrim( $label ) . ' ';
if ( ! $strict ) {
if ( ini_get( 'html_errors' ) ) {
$output = print_r( $var, true );
$output = "<pre>" . $label . htmlspecialchars( $output, ENT_QUOTES ) . "</pre>";
} else {
$output = $label . print_r( $var, true );
}
} else {
ob_start();
var_dump( $var );
$output = ob_get_clean();
if ( ! extension_loaded( 'xdebug' ) ) {
$output = preg_replace( "/\]\=\>\n(\s+)/m", "] => ", $output );
$output = '<pre>' . $label . htmlspecialchars( $output, ENT_QUOTES ) . '</pre>';
}
}
if ( $echo ) {
echo $output;
return null;
} else
return $output;
}
/**
* 获取客户端IP地址
*/
static public function getClientIP() {
static $ip = NULL;
if ( $ip !== NULL )
return $ip;
if ( isset( $_SERVER['HTTP_X_FORWARDED_FOR'] ) ) {
$arr = explode( ',', $_SERVER['HTTP_X_FORWARDED_FOR'] );
$pos = array_search( 'unknown', $arr );
if ( false !== $pos )
unset( $arr[$pos] );
$ip = trim( $arr[0] );
} elseif ( isset( $_SERVER['HTTP_CLIENT_IP'] ) ) {
$ip = $_SERVER['HTTP_CLIENT_IP'];
} elseif ( isset( $_SERVER['REMOTE_ADDR'] ) ) {
$ip = $_SERVER['REMOTE_ADDR'];
}
// IP地址合法验证
$ip = ( false !== ip2long( $ip ) ) ? $ip : '0.0.0.0';
return $ip;
}
/**
* 循环创建目录
*/
static public function mkdir( $dir, $mode = 0777 ) {
if ( is_dir( $dir ) || @mkdir( $dir, $mode ) )
return true;
if ( ! mk_dir( dirname( $dir ), $mode ) )
return false;
return @mkdir( $dir, $mode );
}
/**
* 格式化单位
*/
static public function byteFormat( $size, $dec = 2 ) {
$a = array ( "B" , "KB" , "MB" , "GB" , "TB" , "PB" );
$pos = 0;
while ( $size >= 1024 ) {
$size /= 1024;
$pos ++;
}
return round( $size, $dec ) . " " . $a[$pos];
}
/**
* 下拉框，单选按钮 自动选择
*
* @param $string 输入字符
* @param $param 条件
* @param $type 类型
* selected checked
* @return string
*/
static public function selected( $string, $param = 1, $type = 'select' ) {
if ( is_array( $param ) ) {
$true = in_array( $string, $param );
}elseif ( $string == $param ) {
$true = true;
}
if ( $true )
$return = $type == 'select' ? 'selected="selected"' : 'checked="checked"';
echo $return;
}
/**
* 获得来源类型 post get
*
* @return unknown
*/
static public function method() {
return strtoupper( isset( $_SERVER['REQUEST_METHOD'] ) ? $_SERVER['REQUEST_METHOD'] : 'GET' );
}
/**
* 提示信息
*/
static public function message( $action = 'success', $content = '', $redirect = '', $timeout = 3 ) {
$url = $redirect;
switch ( $action ) {
case 'success':
$vars = array('titler'=>'操作完成', 'class'=>'success','status'=>'✔');
break;
case 'error':
$vars = array('titler'=>'操作未完成', 'class'=>'error','status'=>'✘');
break;
case 'errorBack':
$vars = array('titler'=>'操作未完成', 'class'=>'error','status'=>'✘');
break;
case 'redirect': header( "Location:$url" ); break;
case 'script':
exit( '<script language="javascript">alert("' . $content . '");window.location=" ' . $url . '"</script>' );
break;
}
if($action !='errorBack')
$script = '<div class="go">系统自动跳转在 <span id="time">'.$timeout.'</span> 秒钟后，如果不想等待 > <a href="'.$redirect.'">点击这里跳转</a><script>function redirect(url) {window.location.href = url;}setTimeout("redirect(\''.$redirect.'\');",'.$timeout * 1000 .');</script>';
else
$script = '<a href="'.$url.'" >[点这里返回上一页]</a>';
$body = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>'.$vars['titler'].'</title><style type="text/css">body { font-size: 15px; font-family: "Tahoma", "Microsoft Yahei" }.wrap { background: #F7FBFE; border: 1px solid #DEEDF6; width: 650px; padding: 50px; margin: 50px auto 0; border-radius: 5px }h1 { font-size: 25px }div { padding: 6px 0 }div:after { visibility: hidden; display: block; font-size: 0; content: " "; clear: both; height: 0; }a { text-decoration: none; }#status, #content { float: left; }#status { height: auto; line-height: 50px; margin-right: 30px; font-size: 25pt }#content { float: left; width: 550px; }.message { color: #333; line-height: 25px }#time { color: #F00 }.error { color: #F00 }.success{color:#060}.go { font-size: 12px; color: #666 }</style></head><body><div class="wrap"><div id="status" class="'.$vars['class'].'">'.$vars['status'].'</div><div id="content"><div class="message '.$vars['class'].'">'.$content.'</div>'.$script.'</p></div></div></div></body></html>';
exit ( $body );
}
/**
* 查询字符生成
*/
static public function buildCondition( array $getArray, array $keys = array() ) {
if ( $getArray ) {
foreach ( $getArray as $key => $value ) {
if ( in_array( $key, $keys ) && $value ) {
$arr[$key] = CHtml::encode(strip_tags($value));
}
}
return $arr;
}
}
/**
* base64_encode
*/
static function b64encode( $string ) {
$data = base64_encode( $string );
$data = str_replace( array ( '+' , '/' , '=' ), array ( '-' , '_' , '' ), $data );
return $data;
}
/**
* base64_decode
*/
static function b64decode( $string ) {
$data = str_replace( array ( '-' , '_' ), array ( '+' , '/' ), $string );
$mod4 = strlen( $data ) % 4;
if ( $mod4 ) {
$data .= substr( '====', $mod4 );
}
return base64_decode( $data );
}
/**
* 验证邮箱
*/
public static function email( $str ) {
if ( empty( $str ) )
return true;
$chars = "/^([a-z0-9+_]|\\-|\\.)+@(([a-z0-9_]|\\-)+\\.)+[a-z]{2,6}\$/i";
if ( strpos( $str, '@' ) !== false && strpos( $str, '.' ) !== false ) {
if ( preg_match( $chars, $str ) ) {
return true;
} else {
return false;
}
} else {
return false;
}
}
/**
* 验证手机号码
*/
public static function mobile( $str ) {
if ( empty( $str ) ) {
return true;
}
return preg_match( '#^13[\d]{9}$|14^[0-9]\d{8}|^15[0-9]\d{8}$|^18[0-9]\d{8}$#', $str );
}
/**
* 验证固定电话
*/
public static function tel( $str ) {
if ( empty( $str ) ) {
return true;
}
return preg_match( '/^((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?$/', trim( $str ) );
}
/**
* 验证qq号码
*/
public static function qq( $str ) {
if ( empty( $str ) ) {
return true;
}
return preg_match( '/^[1-9]\d{4,12}$/', trim( $str ) );
}
/**
* 验证邮政编码
*/
public static function zipCode( $str ) {
if ( empty( $str ) ) {
return true;
}
return preg_match( '/^[1-9]\d{5}$/', trim( $str ) );
}
/**
* 验证ip
*/
public static function ip( $str ) {
if ( empty( $str ) )
return true;
if ( ! preg_match( '#^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$#', $str ) ) {
return false;
}
$ip_array = explode( '.', $str );
//真实的ip地址每个数字不能大于255（0-255）
return ( $ip_array[0] <= 255 && $ip_array[1] <= 255 && $ip_array[2] <= 255 && $ip_array[3] <= 255 ) ? true : false;
}
/**
* 验证身份证(中国)
*/
public static function idCard( $str ) {
$str = trim( $str );
if ( empty( $str ) )
return true;
if ( preg_match( "/^([0-9]{15}|[0-9]{17}[0-9a-z])$/i", $str ) )
return true;
else
return false;
}
/**
* 验证网址
*/
public static function url( $str ) {
if ( empty( $str ) )
return true;
return preg_match( '#(http|https|ftp|ftps)://([\w-]+\.)+[\w-]+(/[\w-./?%&=]*)?#i', $str ) ? true : false;
}
/**
* 根据ip获取地理位置
* @param $ip
* return :ip,beginip,endip,country,area
*/
public static function getlocation( $ip = '' ) {
$ip = new XIp();
$ipArr = $ip->getlocation( $ip );
return $ipArr;
}
/**
* 中文转换为拼音
*/
public static function pinyin( $str ) {
$ip = new XPinyin();
return $ip->output( $str );
}
/**
* 拆分sql
*
* @param $sql
*/
public static function splitsql( $sql ) {
$sql = preg_replace("/TYPE=(InnoDB|MyISAM|MEMORY)( DEFAULT CHARSET=[^; ]+)?/", "ENGINE=\\1 DEFAULT CHARSET=" . Yii::app()->db->charset, $sql);
$sql = str_replace("\r", "\n", $sql);
$ret = array ();
$num = 0;
$queriesarray = explode(";\n", trim($sql));
unset($sql);
foreach ($queriesarray as $query) {
$ret[$num] = '';
$queries = explode("\n", trim($query));
$queries = array_filter($queries);
foreach ($queries as $query) {
$str1 = substr($query, 0, 1);
if ($str1 != '#' && $str1 != '-')
$ret[$num] .= $query;
}
$num ++;
}
return ($ret);
}
/**
* 字符截取
*
* @param $string
* @param $length
* @param $dot
*/
public static function cutstr( $string, $length, $dot = '...', $charset = 'utf-8' ) {
if ( strlen( $string ) <= $length )
return $string;
$pre = chr( 1 );
$end = chr( 1 );
$string = str_replace( array ( '&' , '"' , '<' , '>' ), array ( $pre . '&' . $end , $pre . '"' . $end , $pre . '<' . $end , $pre . '>' . $end ), $string );
$strcut = '';
if ( strtolower( $charset ) == 'utf-8' ) {
$n = $tn = $noc = 0;
while ( $n < strlen( $string ) ) {
$t = ord( $string[$n] );
if ( $t == 9 || $t == 10 || ( 32 <= $t && $t <= 126 ) ) {
$tn = 1;
$n ++;
$noc ++;
} elseif ( 194 <= $t && $t <= 223 ) {
$tn = 2;
$n += 2;
$noc += 2;
} elseif ( 224 <= $t && $t <= 239 ) {
$tn = 3;
$n += 3;
$noc += 2;
} elseif ( 240 <= $t && $t <= 247 ) {
$tn = 4;
$n += 4;
$noc += 2;
} elseif ( 248 <= $t && $t <= 251 ) {
$tn = 5;
$n += 5;
$noc += 2;
} elseif ( $t == 252 || $t == 253 ) {
$tn = 6;
$n += 6;
$noc += 2;
} else {
$n ++;
}
if ( $noc >= $length ) {
break;
}
}
if ( $noc > $length ) {
$n -= $tn;
}
$strcut = substr( $string, 0, $n );
} else {
for ( $i = 0; $i < $length; $i ++ ) {
$strcut .= ord( $string[$i] ) > 127 ? $string[$i] . $string[++ $i] : $string[$i];
}
}
$strcut = str_replace( array ( $pre . '&' . $end , $pre . '"' . $end , $pre . '<' . $end , $pre . '>' . $end ), array ( '&' , '"' , '<' , '>' ), $strcut );
$pos = strrpos( $strcut, chr( 1 ) );
if ( $pos !== false ) {
$strcut = substr( $strcut, 0, $pos );
}
return $strcut . $dot;
}
/**
* 描述格式化
* @param $subject
*/
public static function clearCutstr ($subject, $length = 0, $dot = '...', $charset = 'utf-8')
{
if ($length) {
return XUtils::cutstr(strip_tags(str_replace(array ("\r\n" ), '', $subject)), $length, $dot, $charset);
} else {
return strip_tags(str_replace(array ("\r\n" ), '', $subject));
}
}
/**
* 检测是否为英文或英文数字的组合
*
* @return unknown
*/
public static function isEnglist( $param ) {
if ( ! eregi( "^[A-Z0-9]{1,26}$", $param ) ) {
return false;
} else {
return true;
}
}
/**
* 将自动判断网址是否加http://
*
* @param $http
* @return string
*/
public static function convertHttp( $url ) {
if ( $url == 'http://' || $url == '' )
return '';
if ( substr( $url, 0, 7 ) != 'http://' && substr( $url, 0, 8 ) != 'https://' )
$str = 'http://' . $url;
else
$str = $url;
return $str;
}
/*
标题样式格式化
*/
public static function titleStyle( $style ) {
$text = '';
if ( $style['bold'] == 'Y' ) {
$text .='font-weight:bold;';
$serialize['bold'] = 'Y';
}
if ( $style['underline'] == 'Y' ) {
$text .='text-decoration:underline;';
$serialize['underline'] = 'Y';
}
if ( !empty( $style['color'] ) ) {
$text .='color:#'.$style['color'].';';
$serialize['color'] = $style['color'];
}
return array( 'text' => $text, 'serialize'=>empty( $serialize )? '': serialize( $serialize ) );
}
// 自动转换字符集 支持数组转换
static public function autoCharset ($string, $from = 'gbk', $to = 'utf-8')
{
$from = strtoupper($from) == 'UTF8' ? 'utf-8' : $from;
$to = strtoupper($to) == 'UTF8' ? 'utf-8' : $to;
if (strtoupper($from) === strtoupper($to) || empty($string) || (is_scalar($string) && ! is_string($string))) {
//如果编码相同或者非字符串标量则不转换
return $string;
}
if (is_string($string)) {
if (function_exists('mb_convert_encoding')) {
return mb_convert_encoding($string, $to, $from);
} elseif (function_exists('iconv')) {
return iconv($from, $to, $string);
} else {
return $string;
}
} elseif (is_array($string)) {
foreach ($string as $key => $val) {
$_key = self::autoCharset($key, $from, $to);
$string[$_key] = self::autoCharset($val, $from, $to);
if ($key != $_key)
unset($string[$key]);
}
return $string;
} else {
return $string;
}
}
/*
标题样式恢复
*/
public static function titleStyleRestore( $serialize, $scope = 'bold' ) {
$unserialize = unserialize( $serialize );
if ( $unserialize['bold'] =='Y' && $scope == 'bold' )
return 'Y';
if ( $unserialize['underline'] =='Y' && $scope == 'underline' )
return 'Y';
if ( $unserialize['color'] && $scope == 'color' )
return $unserialize['color'];
}
/**
* 列出文件夹列表
*
* @param $dirname
* @return unknown
*/
public static function getDir( $dirname ) {
$files = array();
if ( is_dir( $dirname ) ) {
$fileHander = opendir( $dirname );
while ( ( $file = readdir( $fileHander ) ) !== false ) {
$filepath = $dirname . '/' . $file;
if ( strcmp( $file, '.' ) == 0 || strcmp( $file, '..' ) == 0 || is_file( $filepath ) ) {
continue;
}
$files[] = self::autoCharset( $file, 'GBK', 'UTF8' );
}
closedir( $fileHander );
}
else {
$files = false;
}
return $files;
}
/**
* 列出文件列表
*
* @param $dirname
* @return unknown
*/
public static function getFile( $dirname ) {
$files = array();
if ( is_dir( $dirname ) ) {
$fileHander = opendir( $dirname );
while ( ( $file = readdir( $fileHander ) ) !== false ) {
$filepath = $dirname . '/' . $file;
if ( strcmp( $file, '.' ) == 0 || strcmp( $file, '..' ) == 0 || is_dir( $filepath ) ) {
continue;
}
$files[] = self::autoCharset( $file, 'GBK', 'UTF8' );;
}
closedir( $fileHander );
}
else {
$files = false;
}
return $files;
}
/**
* [格式化图片列表数据]
*
* @return [type] [description]
*/
public static function imageListSerialize( $data ) {
foreach ( (array)$data['file'] as $key => $row ) {
if ( $row ) {
$var[$key]['fileId'] = $data['fileId'][$key];
$var[$key]['file'] = $row;
}
}
return array( 'data'=>$var, 'dataSerialize'=>empty( $var )? '': serialize( $var ) );
}
/**
* 反引用一个引用字符串
* @param $string
* @return string
*/
static function stripslashes($string) {
if(is_array($string)) {
foreach($string as $key => $val) {
$string[$key] = self::stripslashes($val);
}
} else {
$string = stripslashes($string);
}
return $string;
}
/**
* 引用字符串
* @param $string
* @param $force
* @return string
*/
static function addslashes($string, $force = 1) {
if(is_array($string)) {
foreach($string as $key => $val) {
$string[$key] = self::addslashes($val, $force);
}
} else {
$string = addslashes($string);
}
return $string;
}
/**
* 格式化内容
*/
static function formatHtml($content, $options = ''){
$purifier = new CHtmlPurifier();
if($options != false)
$purifier->options = $options;
return $purifier->purify($content);
}
}
?>
**粗体** _斜体_ [链接](http://example.com) `代码` - 列表 > 引用。你还可以使用@来通知其他用户。