PHP array_intersect() 实例 - 自学教程(runoops.com)

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>PHP array_intersect() 实例 - 自学教程(runoops.com)</title>
</head>
<body>
​
<?php
$a1=array("a"=>"red","b"=>"green","c"=>"blue","d"=>"yellow");
$a2=array("e"=>"red","f"=>"black","g"=>"purple");
$a3=array("a"=>"red","b"=>"black","h"=>"yellow");
 
$result=array_intersect($a1,$a2,$a3);
echo '<pre>';
print_r($result);
echo '</pre>';
?>
​
</body>
​
</html>