使用绝对URL替换相对URL而不使用HTML

Question

I have the following relative URL (my website is www.web1.com).

<a href="/28518/verona-torino" target="partidos"> View! </a> 

I need another URL (not www.web1.com) inserted here, either from JavaScript, PHP, or .htaccess.

The code should be as follows:

<a href="http://www.web2.com/28518/verona-torino" target="partidos"> View! </a>

Editing the HTML manually is not an option.

Answer 1

Top of all PHP files

<?php
define('URL', 'http://www.web2.com/');
?>

In HTML you can now do this

<a href="<?php echo URL; ?>28518/verona-torino" target="partidos"> View! </a>