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$result= ereg("d$" "1"); 回到什么

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Release： 2016-06-13 13:21:32
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$result= ereg("^\d$", "1"); 返回什么
$result=   ereg( "^\d$ ",   "1 ");
我测出来是false;
  $result=   ereg( "^[0-9]$ ",   "1 ");  
测出来是true;
$result=   ereg( "^\.$ ",   ". ");
测出来是true;
真的有点不厚道了,我读了好几遍正则了,\d代表数字啊.真是想不通,高手说一下.

------解决方案--------------------
注: 使用 Perl 兼容正则表达式语法的 preg_match() 函数通常是比 ereg() 更快的替代方案。

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