【www.gdgbn.com--php常用代码】

 代码如下 $a1 = array(array("blue","red","www.111cn.net"),array("black","pink","green"));
$a2 = array("aaa","pink","bbbb");
$str = "red";
$a2[] = $str;
foreach($a1 as $key => $value)
{       
$a1[$key] = array_diff($value,$a2);
}
print_r($a1);

//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。
*/
$array1 = array("a" => "green", "111cn.net", "blue", "red");
$array2 = array("b" => "green", "yellow", "red");
$result = array_diff($array1, $array2);

print_r($result);

/*
array
(
    [1] => blue
)

本文来源：http://www.gdgbn.com/jiaocheng/25982/