我如何在博客内容的所有URL中附加utm_source和utm_medium

问题描述

假设我在数据库中有以下文字。

$str = 'Test text http://hello-world.com Test text  http://google.com/file.jpg?google=1 Test text https://hell.o.wor.ld/test?qwe=qwe Test text text text http://test.test/test hello all how are you I hope you all are fine ';

现在，我要在utm_source和所有网址的中间添加以下内容。

$utmUrl = "utm_source=source&utm_medium=email&utm_campaign=mycamp";

我已经知道我可以找到所有URL并执行str_replace（），但是我想这样做

preg_replace（）

让我知道是否有人知道其他解决方案

这里的问题是某些URL已经存在？在URL中标记，所以我需要使用＆来设置URL，而在哪里呢？我需要附加吗？

解决方法

由joy建议的编辑

类似这样的东西。

$re ='/(?:(?:https?|ftp|file):\/\/|www\.|ftp\.)(?:\([-A-Z0-9+&@#\/%=~_|$?!:,.]*\)|[-A-Z0-9+&@#\/%=~_|$?!:,.])*(?:\([-A-Z0-9+&@#\/%=~_|$?!:,.]*\)|[A-Z0-9+&@#\/%=~_|$])/im';
$str = 'Test text http://hello-world.com Test text  http://google.com/file.jpg?google=1 Test text https://hell.o.wor.ld/test?qwe=qwe Test text text text http://test.test/test hello all how are you I hope you all are fine ';
$utmUrl = "utm_source=source&utm_medium=email&utm_campaign=mycamp";
preg_match_all($re,$str,$matches,PREG_SET_ORDER,0);
foreach ($matches as $match)
    $str = preg_replace('%' . $match[0] . '%',$match[0] . (strpos($match[0],'?') !== false ? '&' : '?') . $utmUrl,$str);
var_dump($str);

Working Example

编辑：使用preg_replace_callback

$re = '/(?:(?:https?|ftp|file):\/\/|www\.|ftp\.)(?:\([-A-Z0-9+&@#\/%=~_|$?!:,.]*\)|[A-Z0-9+&@#\/%=~_|$])/im';
$str = 'Test text http://hello-world.com Test text  http://google.com/file.jpg?google=1 Test text https://hell.o.wor.ld/test?qwe=qwe Test text text text http://test.test/test hello all how are you I hope you all are fine ';
$utmUrl = "utm_source=source&utm_medium=email&utm_campaign=mycamp";
$str = preg_replace_callback($re,function ($match) use ($utmUrl) {
    return $match[0] . (strpos($match[0],'?') !== false ? '&' : '?') . $utmUrl . ' ';
},$str);

var_dump($str);

Working Example

旧答案。

类似这样的东西。

$re = '%(https?://.*)\s%mU';
$str = 'Test text http://hello-world.com Test text  http://google.com/file.jpg?google=1 Test text https://hell.o.wor.ld/test?qwe=qwe Test text text text http://test.test/test hello all how are you I hope you all are fine ';
$utmUrl = "utm_source=source&utm_medium=email&utm_campaign=mycamp";
preg_match_all($re,0);
foreach ($matches as $match)
    $str = preg_replace('%' . $match[1] . '%',$match[1] . (strpos($match[1],$str);
var_dump($str);

Working Example

编辑：使用preg_replace_callback

$re = '%(https?://.*)\s%mU';
$str = 'Test text http://hello-world.com Test text  http://google.com/file.jpg?google=1 Test text https://hell.o.wor.ld/test?qwe=qwe Test text text text http://test.test/test hello all how are you I hope you all are fine ';
$utmUrl = "utm_source=source&utm_medium=email&utm_campaign=mycamp";
$str = preg_replace_callback($re,function ($match) use ($utmUrl) {
    return $match[1] . (strpos($match[1],$str);

var_dump($str);

Working Example