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我正在尝试从来自 Wordpress 生成的数据库的文本字符串中删除一些 html。

我要这个：

Marnie Stanton led us through the process first and then everyone went crazy. 
[caption id="attachment_76" align="alignnone" width="191"] One of the work stations[/caption]
[caption id="attachment_78" align="alignnone" width="300"] The group is getting some great results[/caption]
[caption id="attachment_83" align="alignnone" width="224"] You can see the prints multiplying[/caption]

变成这样：

Marnie Stanton led us through the process first and then everyone went crazy.

所以我想要的是从第一个[caption]到最后一个[/caption]被删除的所有内容。

我从这个开始：

(\[caption\s+?[^]]+\])

仅删除第一个标签。

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4 回答 4

9

你可能想使用这样的东西

$string = 'Marnie Stanton led us through the process first and then everyone went crazy. 
[caption id="attachment_76" align="alignnone" width="191"] One of the work stations[/caption]
[caption id="attachment_78" align="alignnone" width="300"] The group is getting some great results[/caption]
I want to keep this !
[caption id="attachment_83" align="alignnone" width="224"] You can see the prints multiplying[/caption]';

$new_string = preg_replace('#\s*\[caption[^]]*\].*?\[/caption\]\s*#is', '', $string);
echo $new_string;

输出：

Marnie Stanton 首先带领我们完成了整个过程，然后每个人都发疯了。我想保留这个！

解释：

  • 修饰符is：i表示不区分大小写，s表示用点匹配新行.
  • \s*: 匹配空格 0 次或多次
  • \[caption： 匹配[caption
  • [^]]*: 匹配除]0 次或多次以外的任何内容
  • \]： 匹配]
  • .*?\[/caption\]: 匹配任何东西直到[/caption]找到（和匹配[/caption]）
  • \s*: 匹配空格 0 次或多次

在线演示

于 2013-06-07T15:59:23.110 回答
1

看起来你只想要字符串的开头，我不会使用正则表达式，而是使用字符串函数：

$pos = stripos($your_string, '[caption');
$result = substr($your_string, 0, $pos);
于 2013-06-07T15:55:11.927 回答
1

[标题] 是一个简码示例。您可以使用 Wordpress 的strip_shortcodes();功能删除所有简码。

$text = 'Marnie Stanton led us through the process first and then everyone went crazy. 
[caption id="attachment_76" align="alignnone" width="191"] One of the work stations[/caption]
[caption id="attachment_78" align="alignnone" width="300"] The group is getting some great results[/caption]
I want to keep this !
[caption id="attachment_83" align="alignnone" width="224"] You can see the prints multiplying[/caption]';

$text = strip_shortcodes($text);
echo $text;

这将输出：

Marnie Stanton 首先带领我们完成了整个过程，然后每个人都发疯了。我想保留这个！

[说明] 文档

strip_shortcodes 文档

于 2016-02-18T00:51:26.640 回答
0

似乎你可以用换行符来爆炸字符串，然后只取第一行......

<?php

$str = <<<EOD
Marnie Stanton led us through the process first and then everyone went crazy.
[caption id="attachment_76" align="alignnone" width="191"] One of the work stations[/caption]
[caption id="attachment_78" align="alignnone" width="300"] The group is getting some great results[/caption]
[caption id="attachment_83" align="alignnone" width="224"] You can see the prints multiplying[/caption]
EOD;

$lines = explode("\n", trim($str));

echo $lines[0]; # Marnie Stanton led us through the process first and then everyone went crazy.
于 2013-06-07T16:04:17.803 回答