请教这段内容如何用正则 进行匹配
$s= <div style="padding-bottom:5px">Username</div> <div style="padding-bottom:5px"><input type="text" name="username" style="width:180px"></div> <div style="padding-bottom:5px">Password</div> <div style="padding-bottom:5px"><input type="password" name="password" style="width:180px"></div> <div style="padding-bottom:5px"> <div style="padding:5px 0px"><a href="javascript:void(0);" onclick="captchareload2();"><img src="modules/captcha/captcha.php?r=login" id="captchaimglogin" border="0" alt="请问这段内容怎么用正则 进行匹配" ></a></div> <script>function captchareload2(){$("#captchaimglogin").attr('src','modules/captcha/captcha.php?r=login&x=34&y=75&z=119&?newtime=' + (new Date()).getTime());}</script> </div> <div style="padding-bottom:5px"><input type="text" name="captcha" id="captcha_login" style="width:180px"></div> <div style="padding-bottom:5px"><input type="submit" name="login" value="Login" class="orange"></div> html;preg_match('/<div style="padding-bottom:5px"><div style="padding:5px 0px">.+(?=javascript:void\(0\)).+/s',$s,$m);print_r($m);<div class="clear"> </div> </div></div>