实例php正则{}，实例PHP正则表达式{}应用详解

preg_match('/[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+"".[a-zA-Z]{2,}/',$email);

str_replace('old','new',$text);

preg_match('/^1[3-9]""d{9}$/',$phone);

preg_match('/http(s)?://([""w-]+"".)+[""w-]+(/[""w-./?%&=]*)?/',$url,$matches);echo$matches[1];

preg_match('/""d/',$string);

preg_match('/^""d{4}-""d{2}-""d{2}$/',$date);

preg_match('/^(?=.*[a-z])(?=.*[A-Z])(?=.*""d)[a-zA-Z""d]{8,}$/',$password);

preg_match_all('/>(.*?)';