<"a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow");
$a2=array("e"=>"red","f"=>"green","g"=>"blue");
 
$result=array_intersect($a1,$a2);
print_r($result);
 
//
Array ( [a] => red [b] => green [c] => blue )

<"a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow");
$a2=array("a"=>"red","b"=>"green","c"=>"blue");
 
$result=array_intersect_assoc($a1,$a2);
print_r($result);
"htmlcode">

<"a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow");
$a2=array("e"=>"red","f"=>"green","g"=>"blue");
 
$result=array_diff($a1,$a2);
print_r($result);
"htmlcode">

<"a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow");
$a2=array("a"=>"red","b"=>"green","c"=>"blue");
 
$result=array_diff_assoc($a1,$a2);
print_r($result);
//
Array ( [d] => yellow )


以上这篇php 比较获取两个数组相同和不同元素的例子(交集和差集)就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。