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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"); $a2=array("a"=>"red","c"=>"blue","d"=>"pink"); function myfunction($a,$b){ if ($a===$b){ return 0; } return ($a>$b)?1:-1; } $result=array_diff_ukey($a1,$a2,"myfunction"); print_r($result); ?> </body> </html>
运行结果: