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php 正则婚配字符串为空白字符或空字符

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Release： 2016-06-13 11:17:44
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php 正则匹配字符串为空白字符或空字符

代码如下，已测试通过。

$bb=' ';
$rs=preg_match("/^[\\s]*$/", $bb);

if ($rs){
echo 'yes';
}

else echo 'no';

?>

如果匹配的不包含空字符的话，就把*改成+就ok了。

Related labels：
echo else match php quot
source：php.cn
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