Home  >  Article  >  Backend Development  >  php regular expression to match a tag

php regular expression to match a tag

WBOY
WBOYOriginal
2016-08-04 09:21:011571browse

<code><table width='100%' border='0'>
    <TBODY>
    <tr>
        <TD class=line width=18 align=middle>
            <IMG src='../images/yt/d.gif' width=4 height=7>
        </TD>
        <TD class=line align=left><A class=newslink
                                     href='xxxxx?id=1624'
                                     title='xxxx'
                                     target=_blank>要匹配的内容</A></TD>
        <TD class=line width=75>
            <DIV class=STYLE1 align=right>要匹配的内容</DIV>
        </TD>
    </TR>
    </tr></TBODY>
</table></code>

The specific value of the id in the href must match, as well as the value of the a tag, and the content in the following div must also match.

It feels so complicated, please ask God for help.

Reply content:

<code><table width='100%' border='0'>
    <TBODY>
    <tr>
        <TD class=line width=18 align=middle>
            <IMG src='../images/yt/d.gif' width=4 height=7>
        </TD>
        <TD class=line align=left><A class=newslink
                                     href='xxxxx?id=1624'
                                     title='xxxx'
                                     target=_blank>要匹配的内容</A></TD>
        <TD class=line width=75>
            <DIV class=STYLE1 align=right>要匹配的内容</DIV>
        </TD>
    </TR>
    </tr></TBODY>
</table></code>

The specific value of the id in the href must match, as well as the value of the a tag, and the content in the following div must also match.

It feels so complicated, please ask God for help.

<code>/<a(.*?)href="(.*?)id"(.*?)>(.*?)<\/a>/i</code>

<code><?php

    $string = "<table width='100%' border='0'>
    <TBODY>
    <tr>
        <TD class=line width=18 align=middle>
            <IMG src='../images/yt/d.gif' width=4 height=7>
        </TD>
        <TD class=line align=left><A class=newslink
                                     href='xxxxx?id=1624'
                                     title='xxxx'
                                     target=_blank>要匹配的内容</A></TD>
        <TD class=line width=75>
            <DIV class=STYLE1 align=right>要匹配的内容</DIV>
        </TD>
    </TR>
    </tr></TBODY>
</table>";

    $reg = "#.*<(a|A).*href=['\"].*\?id=(\d+)['\"].*>(.*)</(a|A)>.*<DIV class=STYLE1 align=right>(.*)</DIV>#isU";

    preg_match($reg, $string, $matchs);

    // a href id
    $id = $matchs[2];

    // a content
    $content = $matchs[3];

    // div content
    $divContent = $matchs[5];</code>

Give me a reference

preg_match_all("/<A.*?id=(.*)'.*>(.*)</A>.*<DIVsclass=STYLE1salign=right>(.*)</DIV&gt ;/Uis", $str,$m);

If you don’t know how to write regular expressions, you can try phpquery. The writing method is similar to jquery, haha

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn