PHP关联数组实现根据元素值删除元素的方法

1

2

3

4

5

6

7

<?php

$array1 = array("a" => "green", "red", "blue", "red");

$array2 = array("b" => "green");

$result = array_diff($array1, $array2);

//这样就相当于删除$array1里的值为"green"的元素。

print_r($result);

?>

1

2

3

4

5

6

7

8

9

10

11

12

13

function removeArrayElement(&$ar,$val)

{

$tmp = array();

foreach($ar as $k => $arc)

{

if($arc!=$val)

{

$tmp[$k]=$arc;

}

}

$ar = $tmp;

unset($tmp);

}