<?php $a1=array("red","green","blue","yellow");$a2=array("red","green","blue"); $result=array_intersect_key($a1,$a2);print_r($result);?> 运行实例 » 实例2 比较三个数组的键名,并返回交集: <?php $a1=array("a"=>"red","b"=>"green","c"=>"blue");$a2=array("c"=...
array_intersect_key() 函数使用键名比较计算数组的交集。 array_intersect_key() 返回一个数组,该数组包含了所有出现在被比较的数组中并同时出现在所有其它参数数组中的键名的值。 注释:仅有键名用于比较。 语法 1 array_intersect_key(array1,array2,array3...) 例子1 1 2 3 4 5 <?php $a1= array(0=...
1<?php2$arr1= ['a' => 1 ,'b' => 2,'c' => 3];3$arr2= ['a','b'];4print_r(array_intersect_key($arr1,array_flip($arr2)));
array_intersect_key函数用于比较两个或多个数组的键,并返回一个数组,该数组仅包含键名在所有数组中都存在的元素。使用方法如下: ```php$array1 = array("...
<?php $a1=array("red","green","blue","yellow");$a2=array("red","green","blue"); $result=array_intersect_key($a1,$a2);print_r($result);?> 运行实例 » 实例2 比较三个数组的键名,并返回交集: <?php $a1=array("a"=>"red","b"=>"green","c"=>"blue");$a2=array("c"=...
每日分享PHP知识点,大家都赞同关注是一种动力,分享是一种美德,再说了关注分享一下又不会怀孕?只要你开心就好... array_intersect_key() 使用键名比较计算数组的交集。 arrayarray_intersect_key(array$array1,array$array2[,array$...]) 说明: array
array_intersect_key函数用于比较两个或多个数组的键,并返回一个数组,其中包含所有数组中都存在的键。换句话说,它返回的是一个新数组,其中包含所有输入数组中共同存在的键。示例:``...
PHP array_intersect_key() functin: The array_intersect_key() is used to create an array containing keys and values of the first array whose keys (i.e. from the first array) are present in all other arrays.
<?php $a1=array("red","green","blue","yellow"); $a2=array("red","green","blue"); $result=array_intersect_key($a1,$a2); print_r($result); ?>例子2 比较三个数组的键名,并返回交集: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 <?php $a1=array("a"=>"red","b"=>"green...
<?php $a1=array("red","green","blue","yellow");$a2=array("red","green","blue"); $result=array_intersect_key($a1,$a2);print_r($result);?> Run example » Example 2 Compare the keys of three arrays, and return the matches: <?php $a1=array("a"=>"red","b"=>"green",...