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源代码
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>PHP array_keys() 实例 - 自学教程(runoops.com)</title> </head> <body> <?php $a=array("Volvo"=>"XC90","BMW"=>"X5","Toyota"=>"Highlander"); echo '<pre>'; print_r(array_keys($a,"Highlander")); echo '</pre>'; ?> </body> </html>
运行结果: