正则表达式从字符串中提取onclick值

时间:2013-06-22 19:40:49

标签: php regex

您好我正试图从javascript onclick获得确切的价值。

以下是我的示例链接:

onclick="omniture('Touchpad_8.0.7.2.ZIP','NP-N150P');downloadFile('http://xxx.com/downloadfile/ContentsFile.aspx?CDSite=UNI_CO&CttFileID=3017288&CDCttType=DR&ModelType=N&ModelName=NP-N150P&VPath=DR/201105/20110509115437867/Touchpad_8.0.7.2.ZIP','ZIP');return false;"
Lan o red inalambrica BROADCOM - 5.100.82.95 - onclick="omniture('WLAN_Broadcom_5.100.82.95.ZIP','NP-N150P');downloadFile('http://xxx.com/downloadfile/ContentsFile.aspx?CDSite=UNI_CO&CttFileID=3017290&CDCttType=DR&ModelType=N&ModelName=NP-N150P&VPath=DR/201108/20110817201634927/WLAN_Broadcom_5.100.82.95.ZIP','ZIP');return false;"

这是我正在尝试的:

preg_match_all(
    "~onclick\s*=\s*([\"\'])(.*?)\\1~si", $d_l, $match);
$link = $match[0][0];

我正在点击完全没有确切的值,我想获得链接作为输出:

(
http://xxx.com/downloadfile/ContentsFile.aspx?CDSite=UNI_CO&CttFileID=3017290&CDCttType=DR&ModelType=N&ModelName=NP-N150P&VPath=DR/201108/20110817201634927/WLAN_Broadcom_5.100.82.95.ZIP)

任何人都可以帮忙吗?

2 个答案:

答案 0 :(得分:4)

有关如何正确执行此操作的示例:

<pre><?php
$html = <<<LOD
<html><head></head><body>
<table>
    <thead></thead>
    <tbody id="tbodyDR">
    <tr><td>bidule
    <a href="#" onclick="dothis('abcd','1234');downloadFile('http://example.com/bidule.ZiP','ZiP');return false;">bidule</a>
    </td></tr>
    <tr><td>truc
    <a href="#" onclick="dothis('abcd','1234');downloadFile('http://example.com/truc.zIP','zIP');return false;">truc</a>
    </td></tr>
    <tr><td>bidule
    <a href="#" onclick="dothis('abcd','1234');downloadFile('http://example.com/machin.zIp','zIp');return false;">machin</a>
    </td></tr>
    </tbody>
</body></html>
LOD;

$doc = new DOMDocument();
//@$doc->loadHTMLFile('http://example.com/list.html');
@$doc->loadHTML($html);
$links = $doc->getElementById('tbodyDR')->getElementsByTagName("a");

foreach($links as $link) {
    $onclickAttr = $link->getAttribute('onclick');
    if( preg_match("~downloadFile\('\K[^']++~", $onclickAttr, $match) )
        $result[] = $match[0];
}
print_r($result);

答案 1 :(得分:1)

$match[0][$i-1]是整个$i - 匹配,$match[1][$i-1]对应于$i - 匹配中的第一个子匹配等。

要获取链接,请尝试以下操作:

preg_match_all(
    "~onclick\s*=\s*([\"\']).*?downloadFile\(([\"'])(.*?)\\2.*?\).*?\\1~si",
    $d_l, $match
);
foreach ($matches[3] as $link)
    echo $link, "<br>\n";