php删除数组中某个值元素
本实例是要利用php array_diff函数来删除数组中某个值元素,方法很简单用foreach再加array_diff函数就可以了,实例代码如下:
- $a1 = array(array('blue','red','www.phpfensi.com'),array('black','pink','green'));
- $a2 = array('aaa','pink','bbbb');
- $str = 'red';
- $a2[] = $str;
- foreach($a1 as $key => $value)
- {//开源代码phpfensi.com
- $a1[$key] = array_diff($value,$a2);
- }
- print_r($a1);
php更简单的做法,代码如下:
- foreach (array_diff($a1, $a2) as $_key_1) {
- $arr_new[$_key_1] = $arr_1[$_key_1];
- }
- /*
- 结果如下:
- array
- (
- [0] => array
- (
- [0] => blue
- [2] => yellow
- )
- [1] => array
- (
- [0] => black
- [2] => green
- )
- )
array_diff语法:array array_diff ( array $array1 , array $array2 [, array $ ... ] )
对比较array1和array2返回差异,实例代码如下:
- */
- $array1 = array("a" => "green", "phpfensi.com", "blue", "red");
- $array2 = array("b" => "green", "yellow", "red");
- $result = array_diff($array1, $array2);
- print_r($result);
- /*
- array
- (
- [1] => blue
- )