php如何把多个一维数组转换成一个二维数组

Question

比如多个一维数组如下。
array(2) {
["address"] => string(6) "广东"
["tongji"] => string(1) "10"
}
array(2) {
["address"] => string(9) "深圳"
["tongji"] => string(1) "2"
}
array(2) {
["address"] => string(6) "广州"
["tongji"] => string(1) "4"
}

转换成如下二维数组
array(3) {

[1] => array(2) {
  ["address"] => string(6) "广东"
  ["tongji"] => string(1) "10"

}

[2] => array(2) {
  ["address"] => string(9) "深证"
  ["tongji"] => string(1) "2"
}

[] => array(2) {
  ["address"] => string(6) "广州"
  ["tongji"] => string(1) "4"
}

}

Answer 1

array_push函数

$a = array(
    "address" =>  "广东",
);

$b = array(
    "address" =>  "深圳",
);
$c = array(
    "address" =>  "北京",
);
$rs = [];
array_push($rs,$a, $b,$c);
print_r($rs);

Answer 2

$city1 = array(
    'address' => '广东',
    'count(*)' => '2'
);
$city2 = array(
    'address' => '深圳',
    'count(*)' => '2'
);
$city3 = array(
    'address' => '广州',
    'count(*)' => '1'
);
$cities = array($city1, $city2, $city3);
// 也可以用$cities[]添加数组元素或者array_push()