pregmatch for url. regex - php

Question

I have a regex that validate a specific url but it not really working. I want to validate urls like this -----> https : // example.co.nz/#![RANDOM_KEYS_HERE].
I want to do it only with https. Most importantly, the input of the user need to match https : // example.co.nz/#! but after the #!, the user can put anything he like.
Here is the code:
I know that the code is fked up xD I have a basic knowledge in that lol
#^https://example+\.[co\.nz][a-z0-9-_.]+\.[a-z]{2,4}#i
If anyone could help me to do it, it would be great! thanks!

Answer 1

Erm... not even close. Your regex reads as follows:
Starting from the beginning of the string...
Match literally https://exampl
Match one or more e
Match a literal .
Match one of any of these: cnoz.
Match one or more of these: a-z0-9-_.
Match a literal .
Match between 2 and 4 letters
This is nothing like what you're looking for. After all, I don't think you want this to pass:
https://exampleeeeeeeeeeee.complete.and.total.failure.-_-.lol
Instead, try this:
(^https://example\.co\.nz/#!(.*))
This regex reads as follows:
Starting from the beginning of the string...
Match literally https://example.co.nz/#!
Capture everything thereafter

Answer 2

Try this out:
^https:\/\/example\.co\.nz\/\#\!(.*)$
The parentheses at the end will do a sub-expression match which should allow you to pull out the ID.
if (preg_match('/^https:\/\/example\.co\.nz\/\#\!(.*)$/', $searchString, $matches)) {
$id = $matches[1];
}

Answer 3

if (preg_match('%^https://example\.co\.nz/#!(.+)$%i', $subject)) {
# Successful match
} else {
# Match attempt failed
}
Or you can get your [RANDOM_KEYS_HERE] part with this one
if (preg_match('%^https://example\.co\.nz/#!(.+)$%i', $subject, $regs)) {
$result = $regs[0];
} else {
$result = "";
}

Answer 4

You don't need regexp there. You just need to find out if string starts with some substring. Check this:
if(strpos($url, 'https://example.co.nz/#!')===0)
{
echo 'url is OK';
}
else
{
echo 'url is wrong';
}
http://www.php.net/manual/en/function.strpos.php
I hope this helps.