PHP正则表达式获取WP标题中的文本

我有在可湿性粉剂的标题，我需要抓取文本了

最初，它们看起来是这样的：

[caption id="attachment_16689" align="aligncenter" width="754"]<a href="http://www.site.com/" target="_blank"><img class=" wp-image-16689 " title="Title" src="http://site.com/wp-content/uploads/2012/11/image.jpg" alt="" width="754" height="960" /></a> I want to get this text out of here.[/caption]

我希望能够从标题中提取文本，并留下“我想从这里提取文本”。我试过许多不同的表达方式，但没有一种我能开始工作。在上述代码之后，我有：

preg_replace('/(\[caption.*])(.*)(\[/caption\])/', '$1$3', $c);

---

我做错了什么？

见下文，您实际上想用第二个主题替换。还有，你的反斜杠漏掉了

$string = '[caption id="attachment_16689" align="aligncenter" width="754"] I want to get this text out of here.[/caption]';

preg_match("/\[caption.*\](.*?)\[\/caption\]/",$string,$matches);
$caption_text = $matches[1];
echo $caption_text;

$caption = '[caption id="attachment_16689" align="aligncenter" width="754"]<a href="http://www.site.com/" target="_blank"><img class=" wp-image-16689 " title="Title" src="http://site.com/wp-content/uploads/2012/11/image.jpg" alt="" width="754" height="960" /></a> I want to get this text out of here.[/caption]';

$c = preg_replace(array("/<img[^>]+\>/i", "/<a[^>]*>(.*)<\/a>/iU"), "", $caption);
$c = preg_replace('%(\\[caption.*])(.*)(\\[/caption\\])%', '$2', $c);

---

您要提取的文本是否总是嵌入在相同的HTML标记中，而这将完成以下工作：“（.+）[/caption]”我想是的，但是这个客户端有1k+个帖子，所以我不能确定！啊，就是这样。我对preg_replace做了什么错误？据我所知，您没有逃逸第一个“]”。preg_replace（'/[caption.*]（.*）[\/caption]/'，'$1'，$c）也可以使用。您仍然需要逃逸括号，但确实可以

$string = '[caption id="attachment_16689" align="aligncenter" width="754"] I want to get this text out of here.[/caption]';

preg_match("/\[caption.*\](.*?)\[\/caption\]/",$string,$matches);
$caption_text = $matches[1];
echo $caption_text;

$caption = '[caption id="attachment_16689" align="aligncenter" width="754"]<a href="http://www.site.com/" target="_blank"><img class=" wp-image-16689 " title="Title" src="http://site.com/wp-content/uploads/2012/11/image.jpg" alt="" width="754" height="960" /></a> I want to get this text out of here.[/caption]';

$c = preg_replace(array("/<img[^>]+\>/i", "/<a[^>]*>(.*)<\/a>/iU"), "", $caption);
$c = preg_replace('%(\\[caption.*])(.*)(\\[/caption\\])%', '$2', $c);

$caption = '[caption id="attachment_16689" align="aligncenter" width="754"]<a href="http://www.site.com/" target="_blank"><img class=" wp-image-16689 " title="Title" src="http://site.com/wp-content/uploads/2012/11/image.jpg" alt="" width="754" height="960" /></a> I want to get this text out of here.[/caption]';

$c = preg_replace(array("/<img[^>]+\>/i", "/<a[^>]*>(.*)<\/a>/iU",'%(\\[caption.*])(.*)(\\[/caption\\])%'), array('','','$2'), $caption);