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重写内容Content类，给每张图片后面加指定字符串
我想重写内容Content类，给每张图片后面加指定字符串，我是这样写的。不起作用，小白自学中，请大神指教一下。谢谢
<?php
public function _content_post_before($id, $data, $old) {
$content ='<p>
<img src="http://xxx.com/uploadfile/ueditor/image/201910/nhg2019102612irgswxg5mcw.jpg" alt="777"/>
</p>
<img src="http://xxx.com/uploadfile/ueditor/image/201910/nhg2019102612t2p2sqdpfne.jpg" alt="888"/>
</p>
<p>
<img src="http://xxx.com/uploadfile/ueditor/image/201910/nhg2019102612w02qaner5ri.jpg" alt="999"/>
</p>
<p>
<img src="http://xxx.com/uploadfile/ueditor/image/201910/nhg2019102612cvvyc3sysmx.jpg" alt="1010"/>
</p>
';
preg_match_all("/<[img|IMG].*?src=[\'|\"](.*?(?:[\.gif|\.jpg]))[\'|\"].*?[\/]?>/",$content,$match);
$array = $match[0];
foreach ($array as $value) {
echo $value."自定义字符串";
}
}
?>
public function _content_post_before($id, $data, $old) { $pattern= "/<img.*?src=[\"|\'](.*?)[\"|\'].*?>/"; $replace = '<img src="$1" alt="1111">'; preg_replace($pattern,$replace,$data[0]['content']); return $data; }public function _content_post_before($id, $data, $old) { $pattern= "/<img.*?src=[\"|\'](.*?)[\"|\'].*?>/"; $replace = '<img src="$1" alt="1111">'; $data[0]['content'] = preg_replace($pattern,$replace,$data[0]['content']); return $data; }都没有赋值，先学习好php啊