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源代码
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>PHP array_diff_ukey() 实例 - 自学教程(runoops.com)</title> </head> <body> <?php $a1=array("a"=>"red","b"=>"green","c"=>"blue"); $a2=array("a"=>"black","b"=>"yellow","d"=>"brown"); $a3=array("e"=>"purple","f"=>"white","a"=>"gold"); $result=array_diff_ukey($a1,$a2,$a3,"myfunction"); print_r($result); function myfunction($a, $b){ if ($a === $b) { return 0; } return ($a > $b) ? 1 : -1; } ?> </body> </html>
运行结果: