使用preg_replace更改index.php进行测试

Question

In my forum urls, there is "index.php" in it everywhere. I want to replace it with "test". In my PHP files, I have this line:

// Makes it easier to refer to things this way.
    $scripturl = $boardurl . '/index.php';

I tried just changing it to:

// Makes it easier to refer to things this way.
    $scripturl = $boardurl . '/test';

However, that returned 404 errors. I was told that I needed to use preg_replace to make that happen. I looked at the PHP Manual, and it says I need a pattern, replacement, and a subject. I'm confused about the subject part.

I tried this, but no prevail:

// Makes it easier to refer to things this way.
    $scripturl = $boardurl . preg_replace('/index.php','/test','?');

Here is an example URL: "domain.com/index.php?node=forum"

I want it to look like: "domain.com/test?node=forum"

Answer 1

You can use str_replace(). Like this:

$new_url = str_replace('index.php', 'test/', $original_url);

Note that preg_replace() would do the job too but it is more complex (and powerful). str_replace() fits in this case.

Just for your info, the subject param for str_replace is the orginal string, in your example the url with 'index.php' in it. Your example would look like:

$pattern = '/index\.php/';
$replacement = 'test/';
$subject = 'http://yoursite.com/index.php?foo=bar';

echo preg_replace($pattern, $replacement, $subject);