php - 如何忽略字符串中的http链接并返回其他所有内容？

Question

我正在尝试解析一些 html 内容，这是 HTML 内容：

<font color="green"> *TITLE* </font> Some Event Name 1:15pm-5:00pm <font color="gold">Stream 5</font><p>
<font color="green"> *TITLE* </font> Some: Event Name 1:30pm-5:00pm <font color="gold">Stream 4</font><p>
<font color="green"> *TITLE* </font> Some, Event Name 1 with num 1:30pm-7:30pm <font color="gold">CHANNEL TWO 2 STREAM http://http://domain.com/path/to/page-2-online.html</font><p>
<font color="green"> *TITLE* </font> Event two 2.45pm-4.45pm <font color="gold">Stream 16</font><p>
<font color="green"> *TITLE* </font> Event THREE summary 2.45pm-4.45pm <font color="gold">Stream 2</font><p>
<font color="green"> *TITLE* </font> Event with a lot of summary 4:00pm-6:00pm <font color="gold">CHANNEL THREE 3 STREAM http://domain.com/path/to/page-3-online.html</font><p>

因此，要解析并获取“事件名称”、“事件时间”和“流编号”，我这样做：

preg_match_all('/<\/font>\s*([^<]+)\s+(\d+.\d+\s*\w{2}\s*-\s*\d+.\d+\s*\w{2}).*?tream\s*(.*?)\s*<\/font><p>/', $data, $matches);

它会正确返回所有内容，但是也返回了我不想要的带有 http 链接的流号。我只想要名称（对于某些人）和号码。

所需数据：

5
4
CHANNEL TWO 2 STREAM
16
2
CHANNEL THREE 3 STREAM

目前它返回：

5
4
-online.html
16
2
-online.html

有人可以帮忙吗？不是正则表达式的专业人士，最近两天一直在尝试。提前致谢！！！

Answer 1

但是，如果你想在正则表达式中使用它，那么根据你的数据，你需要这个

preg_match_all('/(?:<\/font> )((?:[^0-9]+(?:[0-9](?!\.|:|[0-9]))?(?:[0-9]{2}(?!\.|:))?)*)([^<]+) <[^>]+>(?:Stream )?([^h<]+)/', $data, $matches);

这会将名称$matches[1]、时间$matches[2]和频道放入$matches[3]

---

正则表达式的解释：

1. (?:<\/font> )在新行上搜索（并忽略）第一个关闭字体标签，包括空格
2. ((?:[^0-9]+(?:[0-9](?!\.|:|[0-9]))?(?:[0-9]{2}(?!\.|:))?)*)抓住不是一个或两个数字的所有内容，除非所述数字后跟一个点或冒号（使用负前瞻），根据需要重复并分组为一个
3. ([^<]+)抓取所有内容到下一个“<”，但不是尾随空格
4. <[^>]+>忽略一切直到下一个“>”，也忽略“>”
5. (?:Stream )?如果第一个词是“流”忽略它
6. ([^h<]+)抓取所有内容，直到小写“h”或“<”

Answer 2

描述

该表达式将：

• 找到所有具有“gold”类的字体标签
• Stream如果它是第一个单词，则跳过该单词
• 捕捉有趣的文字
• 到达 http:// 链接时停止捕获

<font(?=\s|>)(?=(?:[^>=|&)]*|='[^']*'|="[^"]*"|=[^'"][^\s>]*)*?\scolor=['"]?gold['"]?)(?:[^>=|&)]|='(?:[^']|\\')*'|="(?:[^"]|\\")*"|=[^'"][^\s>]*)*>(?:Stream\s*)?\K(?:(?!\s*https?:|<\/font>).)*

例子

现场演示将鼠标悬停在蓝色块上以查看它们匹配的原因

示例文本

<font color="green"> *TITLE* </font> Some Event Name 1:15pm-5:00pm <font color="gold">Stream 5</font><p>
<font color="green"> *TITLE* </font> Some: Event Name 1:30pm-5:00pm <font color="gold">Stream 4</font><p>
<font color="green"> *TITLE* </font> Some, Event Name 1 with num 1:30pm-7:30pm <font color="gold">CHANNEL TWO 2 STREAM http://http://domain.com/path/to/page-2-online.html</font><p>
<font color="green"> *TITLE* </font> Event two 2.45pm-4.45pm <font color="gold">Stream 16</font><p>
<font color="green"> *TITLE* </font> Event THREE summary 2.45pm-4.45pm <font color="gold">Stream 2</font><p>
<font color="green"> *TITLE* </font> Event with a lot of summary 4:00pm-6:00pm <font color="gold">CHANNEL THREE 3 STREAM http://domain.com/path/to/page-3-online.html</font><p>

火柴

[0] => 5
[1] => 4
[2] => CHANNEL TWO 2 STREAM
[3] => 16
[4] => 2
[5] => CHANNEL THREE 3 STREAM

Answer 3

描述

该表达式将：

• 捕捉标题
• 捕获事件名称
• 捕捉活动时间
• 查找所有具有 color=gold 的字体标签
• Stream如果存在，则跳过该单词
• 捕捉有趣的文字
• 到达 http:// 链接时停止捕获
• 从火柴周围修剪讨厌的空白区域
• 总体而言，该表达式允许字体标签属性出现在字体标签内的任何位置。并且表达式将避免一些非常困难的边缘情况

<font(?=\s|>)(?=(?:[^>=|&)]*|='[^']*'|="[^"]*"|=[^'"][^\s>]*)*?\scolor=['"]?green['"]?)(?:[^>=|&)]|='(?:[^']|\\')*'|="(?:[^"]|\\")*"|=[^'"][^\s>]*)*>\s*(?:Stream\s*)?((?:(?!<\/font>).)*)<\/font>\s*[^<]*?([^<]+)\s+(\d+.\d+\s*\w{2}\s*-\s*\d+.\d+\s*\w{2})[^<]*?<font(?=\s|>)(?=(?:[^>=|&)]*|='[^']*'|="[^"]*"|=[^'"][^\s>]*)*?\scolor=['"]?gold['"]?)(?:[^>=|&)]|='(?:[^']|\\')*'|="(?:[^"]|\\")*"|=[^'"][^\s>]*)*>(?:Stream\s*)?((?:(?!\s*https?:|<\/font>).)*)

例子

现场演示

示例文本

第 0 组获得整个比赛
第 1 组获得标题
第 2 组获得事件名称
第 3 组获得事件时间
第 4 组获得流编号

<font color="green"> *TITLE* </font> Some Event Name 1:15pm-5:00pm <font color="gold">Stream 5</font><p>
<font color="green"> *TITLE* </font> Some: Event Name 1:30pm-5:00pm <font color="gold">Stream 4</font><p>
<font color="green"> *TITLE* </font> Some, Event Name 1 with num 1:30pm-7:30pm <font color="gold">CHANNEL TWO 2 STREAM http://http://domain.com/path/to/page-2-online.html</font><p>
<font color="green"> *TITLE* </font> Event two 2.45pm-4.45pm <font color="gold">Stream 16</font><p>
<font color="green"> *TITLE* </font> Event THREE summary 2.45pm-4.45pm <font color="gold">Stream 2</font><p>
<font color="green"> *TITLE* </font> Event with a lot of summary 4:00pm-6:00pm <font color="gold">CHANNEL THREE 3 STREAM http://domain.com/path/to/page-3-online.html</font><p>

PHP 代码示例

<?php
$sourcestring="your source string";
preg_match_all('/<font(?=\s|>)(?=(?:[^>=|&)]*|=\'[^\']*\'|="[^"]*"|=[^\'"][^\s>]*)*?\scolor=[\'"]?green[\'"]?)(?:[^>=|&)]|=\'(?:[^\']|\\')*\'|="(?:[^"]|\\")*"|=[^\'"][^\s>]*)*>\s*(?:Stream\s*)?((?:(?!<\/font>).)*)<\/font>\s*[^<]*?([^<]+)\s+(\d+.\d+\s*\w{2}\s*-\s*\d+.\d+\s*\w{2})[^<]*?<font(?=\s|>)(?=(?:[^>=|&)]*|=\'[^\']*\'|="[^"]*"|=[^\'"][^\s>]*)*?\scolor=[\'"]?gold[\'"]?)(?:[^>=|&)]|=\'(?:[^\']|\\')*\'|="(?:[^"]|\\")*"|=[^\'"][^\s>]*)*>(?:Stream\s*)?((?:(?!\s*https?:|<\/font>).)*)
/imsx',$sourcestring,$matches);
echo "<pre>".print_r($matches,true);
?>

火柴

[0][0] = <font color="green"> *TITLE* </font> Some Event Name 1:15pm-5:00pm <font color="gold">Stream 5
[0][1] = *TITLE* 
[0][2] = Some Event Name
[0][3] = 1:15pm-5:00pm
[0][4] = 5

[1][0] = <font color="green"> *TITLE* </font> Some: Event Name 1:30pm-5:00pm <font color="gold">Stream 4
[1][1] = *TITLE* 
[1][2] = Some: Event Name
[1][3] = 1:30pm-5:00pm
[1][4] = 4

[2][0] = <font color="green"> *TITLE* </font> Some, Event Name 1 with num 1:30pm-7:30pm <font color="gold">CHANNEL TWO 2 STREAM
[2][1] = *TITLE* 
[2][2] = Some, Event Name 1 with num
[2][3] = 1:30pm-7:30pm
[2][4] = CHANNEL TWO 2 STREAM

[3][0] = <font color="green"> *TITLE* </font> Event two 2.45pm-4.45pm <font color="gold">Stream 16
[3][1] = *TITLE* 
[3][2] = Event two
[3][3] = 2.45pm-4.45pm
[3][4] = 16

[4][0] = <font color="green"> *TITLE* </font> Event THREE summary 2.45pm-4.45pm <font color="gold">Stream 2
[4][1] = *TITLE* 
[4][2] = Event THREE summary
[4][3] = 2.45pm-4.45pm
[4][4] = 2

[5][0] = <font color="green"> *TITLE* </font> Event with a lot of summary 4:00pm-6:00pm <font color="gold">CHANNEL THREE 3 STREAM
[5][1] = *TITLE* 
[5][2] = Event with a lot of summary
[5][3] = 4:00pm-6:00pm
[5][4] = CHANNEL THREE 3 STREAM