<p>PHP正则判断网址、email、手机号</p> <p>1. 判断Email:</p> <p>&lt;?php<br /> function is_email($email){<br /> return strlen($email) &gt; 6 &amp;&amp; preg_match(&ldquo;/^[\w\-\.]+@[\w\-]+(\.\w+)+$/&ldquo;, $email);<br /> }<br /> ?&gt;<br /> 2. 判断Url:</p> <p>function is_url($str){<br /> return preg_match(&ldquo;/^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-&amp;_~`@[\]\&rsquo;:+!]*([^&lt;&gt;\&quot;])*$/&ldquo;, $str);<br /> }<br /> 3. 判断手机号码:</p> <p>function is_mobile($str){<br /> return preg_match(&ldquo;/^((\(\d{3}\))|(\d{3}\-))?13\d{9}$/&ldquo;, $str);<br /> }<br /> </p>