有div和div图像:
<div class="post entry-content ">
<img class="bbc_img" alt="Posted Image" src="http://example.com/image.jpg">
</div>
我需要帮助php中的div中的fing图像,它与此代码相同:
preg_match('IMAGE.JPG', $DIV_CLASS, $matches);
if ($matches[1])
{
echo $matches[1];
}
或者找到class =&#34; bbc_img&#34;在HTML中
答案 0 :(得分:2)
使用DOMDocument
和XPath
执行此操作要比使用正则表达式简单得多
$strhtml='
<div class="post entry-content">
<img class="bbc_img" alt="Posted Image" src="http://example.com/image.jpg">
</div>';
$dom=new DOMDocument;
$dom->loadHTML( $strhtml );
$xp=new DOMXPath( $dom );
$col=$xp->query('//div[ contains(@class,"entry-content" ) ]/img[@class="bbc_img"]');
if( $col->length > 0 ){
foreach( $col as $node )echo $node->getAttribute('src');
}
答案 1 :(得分:0)
使用JQuery,您可以在DOM解析的帮助下轻松完成此任务。
HTML
<div class="post-entry-content">
<img class="bbc_img" alt="Posted Image" src="http://example.com/image.jpg">
</div>
JS
$(document).ready(function() {
if ($(".post-entry-content .bbc_img").length > 0) {
alert("div contains image with class bbc_img");
}
});
答案 2 :(得分:0)
尝试这种方式:
$div= '<div class="post entry-content ">
<img class="bbc_img" alt="Posted Image" src="http://example.com/image.jpg">
</div>';
preg_match('/src="(.*)"/i', $div, $matches, PREG_OFFSET_CAPTURE);
$img = $matches[0][0];