Question

我在WP中有字幕，我需要抓取文本。

最初，它们看起来像这样：

[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]

我能够删除图片和标签：

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

离开：

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

我希望能够从标题中删除“我希望将此文本从此处删除”。我尝试了许多不同的表达方式，但我都无法解决这些问题。在上面的代码之后我有：

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

我做错了什么？

Answer 1

见下文，您实际上想要替换第二个主题。此外，你有一些误逃的反斜杠。

$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);

您还可以通过将标题替换添加到数组中来稍微减少它。只要确保第二个参数也是一个数组array('','','$2')

$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);

Answer 2

$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;

PHP Regex在WP Caption中获取文本

2 个答案: