I have this string and I am trying to find a match in which, a row has the port number, the field is always either an integer, or a link which contains the word port- in it. An advice of why my regex statement didn't work will be appreciated.
The php expression I am using is:
preg_match_all("/<td align=\"left\">\s*(<a href=\"http:\/\/www.proxynova.com\/proxy-server-list\/port-\d*|\d*)?\s*<\/td>/s", $input_lines, $output_array);
The Live Regex Site where I have my work: http://www.phpliveregex.com/p/eX8
The String I am looking is as follows:
<table width="950" class="table" id="tbl_proxy_list">
<thead>
<tr>
<th>Proxy IP</th>
<th>Proxy Port</th>
<th>Last Check</th>
<th nowrap="nowrap"><span title="Proxy Speed in bytes per second">Proxy Speed</span></th>
<th>Uptime</th>
<th><span title="The location of that particular proxy.">Proxy Country</span></th>
<th>Anonymity </th>
</tr>
</thead>
<tbody>
<tr>
<td align="left">
<span class="row_proxy_ip">220.225.87.129</span>
</td>
<td align="left">
<a href="http://www.proxynova.com/proxy-server-list/port-8080">8080</a>
</td>
<td align="left">
<time class="icon icon-check timeago" datetime="2016-03-14 12:58:53Z"></time>
</td>
<td align="left">
<div class="progress-bar" data-value="7.7100404" title="5855.0202"></div>
</td>
<td style="text-align:center !important;">
<span style="color:#009900;">59%</span>
</td>
<td align="left">
<img src="//www.proxynova.com/assets/images/blank.gif" class="flag flag-in" width="15" height="11" alt="IN" />
<a href="/proxy-server-list/country-in/">India
<span class="proxy-city"> - Chandannagar </span>
</a>
</td>
<td align="left">
<span class="proxy_transparent" style="font-weight:bold; font-size:10px;">Transparent</span>
</td>
</tr>
<tr>
<td align="left">
<span class="row_proxy_ip">220.225.87.129</span>
</td>
<td align="left">
<a href="http://www.proxynova.com/proxy-server-list/port-8080">8080</a>
</td>
<td align="left">
<time class="icon icon-check timeago" datetime="2016-03-14 12:58:53Z"></time>
</td>
<td align="left">
<div class="progress-bar" data-value="7.7100404" title="5855.0202"></div>
</td>
<td style="text-align:center !important;">
<span style="color:#009900;">59%</span>
</td>
<td align="left">
<img src="//www.proxynova.com/assets/images/blank.gif" class="flag flag-in" width="15" height="11" alt="IN" />
<a href="/proxy-server-list/country-in/">India
<span class="proxy-city"> - Chandannagar </span>
</a>
</td>
<td align="left">
<span class="proxy_transparent" style="font-weight:bold; font-size:10px;">Transparent</span>
</td>
</tr>
<tr>
<td align="left">
<span class="row_proxy_ip">220.225.87.129</span>
</td>
<td align="left">
80
</td>
<td align="left">
<time class="icon icon-check timeago" datetime="2016-03-14 12:58:53Z"></time>
</td>
<td align="left">
<div class="progress-bar" data-value="7.7100404" title="5855.0202"></div>
</td>
<td style="text-align:center !important;">
<span style="color:#009900;">59%</span>
</td>
<td align="left">
<img src="//www.proxynova.com/assets/images/blank.gif" class="flag flag-in" width="15" height="11" alt="IN" />
<a href="/proxy-server-list/country-in/">India
<span class="proxy-city"> - Chandannagar </span>
</a>
</td>
<td align="left">
<span class="proxy_transparent" style="font-weight:bold; font-size:10px;">Transparent</span>
</td>
</tr>
</tbody>
</table>
Try this -
<td align=\"left\">\s*(<a href=\"http:\/\/www\.proxynova\.com\/proxy-server-list\/port-\d+|\d+).*?\s*<\/td>
So a couple of things you've missed -
* The \ delimiter at the end
* Ignoring the rest of the characters after the capturing group once your selection has been met.
Code sample -
preg_match_all(
"/<td align=\"left\">\s*(<a href=\"http:\/\/www.proxynova.com\/proxy-server-list\/port-\d+|\d+).*?\s*<\/td>/",
$str,
$output_array
);