http://blog.51yip.com/php/1846.html －－一步，二步，三步，N步，二行脚印 Tue, 07 Jun 2022 01:26:20 +0000 http://wordpress.org/?v=2.9.1 hourly 1 http://blog.51yip.com/php/1846.html/comment-page-1#comment-17618 小雨 Wed, 07 Jun 2017 09:57:08 +0000 http://blog.51yip.com/?p=1846#comment-17618 $str = '3*4-10'; $num = create_function('','return '.$str.';'); echo $num(); $str = '3*4-10';
$num = create_function('','return '.$str.';');
echo $num();

]]> http://blog.51yip.com/php/1846.html/comment-page-1#comment-17617 小雨 Wed, 07 Jun 2017 09:37:11 +0000 http://blog.51yip.com/?p=1846#comment-17617 $str = '3*4-10'; $str = '$num = '.$str.';'; eval($str); echo $num; $str = '3*4-10';
$str = '$num = '.$str.';';
eval($str);
echo $num;

]]> http://blog.51yip.com/php/1846.html/comment-page-1#comment-17577 小子 Wed, 08 Mar 2017 08:30:59 +0000 http://blog.51yip.com/?p=1846#comment-17577 使用 create_function 会比较好一点吧，一般服务器上都会把 eval 函数给禁用掉 使用 create_function 会比较好一点吧，一般服务器上都会把 eval 函数给禁用掉

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