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正则表达式证验老是失败

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2016-06-13 11:23:49983浏览

正则表达式验证老是失败

<body><br />        <?php<br />        if(!empty($_POST[sub]))<br />        {<br />            <br />        if(ereg("\d{10}", $_POST[username]))<br />        <br />        {echo "验证通过。";}<br />        else<br />        {echo "验证失败";}<br />        }<br />        ?><br />        <form action="" method="post"><br />    用户名<input type="text" name="username"><br><br />    <input type="submit" name="sub" value="提交"><br /></form><br />    </body>

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