php正则表达式中的非贪婪模式匹配的使用
通常我们会这么写:
$str = "http://www.baidu/.com?url=www.sina.com/";preg_match("/http:(.*)com/", $str, $matches);print_r($matches);
Array ( [0] => http://www.baidu/.com?url=www.sina.com [1] => //www.baidu/.com?url=www.sina. )
$str = "<a http://www.baidu/.com?url=www.sina.com/";preg_match("/http:(.*?)com/", $str, $matches);print_r($matches);
Array ( [0] => http://www.baidu/.com [1] => //www.baidu/. )
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