Get last part of string with multiple preg_match - php

Question

Spotify has two ways to use url's/identifiers. I want to get the last part of the strings below (the ID)
example url's:
a. https://play.spotify.com/artist/6mdiAmATAx73kdxrNrnlao
b. spotify:artist:6mdiAmATAx73kdxrNrnlao
Can't get the code below to work, so I can add more options to it later as well. I tried basename first, but obviously that doesn't work with ':'.
$str = "https://play.spotify.com/artist/6mdiAmATAx73kdxrNrnlao";
or:
$str = "spotify:artist:6mdiAmATAx73kdxrNrnlao";
if (
preg_match('artist/([a-zA-Z0-9]{22})/', $str, $re) ||
preg_match('artist:([a-zA-Z0-9]{22})/', $str, $re)
) {
$spotifyId = $re[1];
}
Any help is appreciated!

Answer 1

Try this for urls having slashes. If the Spotify string uses colons(:) simply switch the / to a : in the explode() function:
// your url
$url = "https://play.spotify.com/artist/6mdiAmATAx73kdxrNrnlao/blah/blah/blah";
// get path only
$path = parse_url($url)['path'];
// seperate by forward slash
$parts = explode('/', $path);
// go through them and find string with 22 characters
$id = '';
foreach ($parts as $key => $value) {
if (strlen($value) === 22 ) {
// found it, now store it
$id = $value;
break;
}
}
A rough sample of a helpful function would be as follows:
function getSpotifyId($spotifyUrl) {
// check for valid url
if (!filter_var($spotifyUrl, FILTER_VALIDATE_URL)) {
// split using colon
$parts = explode(':', parse_url($spotifyUrl)['path']);
} elseif (filter_var($spotifyUrl, FILTER_VALIDATE_URL)) {
// split using forward slash
$parts = explode('/', parse_url($spotifyUrl)['path']);
}
// loop through segments to find id of 22 chars
foreach ($parts as $key => $value) {
// assuming id will always be 22 characters
if (strlen($value) === 22 ) {
// found it, now return it
return $value;
}
}
return false;
}
$id1 = getSpotifyId('http://localhost/xampp/web_development/6mdiAmATAx73kdxrNrnlao/stack.php');
$id2 = getSpotifyId('spotify:artist:6mdiAmATAx73kdxrNrnlao');
$id3 = getSpotifyId('My name is tom');
results:
$id1 = '6mdiAmATAx73kdxrNrnlao'
$id2 = '6mdiAmATAx73kdxrNrnlao'
$id3 = false