CODEWITHSUNDEEP
youtubepreg-replace
Poeja Network
Poeja Network

Reputation: 184

youtube preg_replace link different

i made this code to preg_replace the youtube code, but i got a problem, here is my code

// replace video Youtube to thumbnail       
$string     = array('http://youtube.com/watch?v=slBEtqC_JsI', 'https://youtu.be/bOxza0rLv1o');
//fix the '/' in the end of url
$string = trim($string, '/');
$search = array();
$search[0] = '~(?:https://(?:www\.)?youtube\.com\/watch\?v=)?([a-zA-Z0-9_\-+?:]+)~';
$search[1] = '~(?:https://(?:www\.)?youtu\.be\/)?([a-zA-Z0-9_\-+?:]+)~';
$replace = array();
$replace[1]    = 'https://i.ytimg.com/vi/$1/hqdefault.jpg';   
$replace[0]   = 'https://i.ytimg.com/vi/$1/hqdefault.jpg'; 
$soc_youtube = preg_replace($search,$replace,$string);

the code doesn't change the string, the output will be

https://i.ytimg.com/vi/https:/hqdefault.jpg//https://i.ytimg.com/vi/i/hqdefault.jpg.https://i.ytimg.com/vi/ytimg/hqdefault.jpg.https://i.ytimg.com/vi/com/hqdefault.jpg/https://i.ytimg.com/vi/vi/hqdefault.jpg/https://i.ytimg.com/vi/https:/hqdefault.jpg/https://i.ytimg.com/vi/hqdefault/hqdefault.jpg.https://i.ytimg.com/vi/jpg/hqdefault.jpg//https://i.ytimg.com/vi/https:/hqdefault.jpg//https://i.ytimg.com/vi/i/hqdefault.jpg.https://i.ytimg.com/vi/ytimg/hqdefault.jpg.https://i.ytimg.com/vi/com/hqdefault.jpg/https://i.ytimg.com/vi/vi/hqdefault.jpg/https://i.ytimg.com/vi/youtu/hqdefault.jpg/https://i.ytimg.com/vi/hqdefault/hqdefault.jpg.https://i.ytimg.com/vi/jpg/hqdefault.jpg.https://i.ytimg.com/vi/https:/hqdefault.jpg//https://i.ytimg.com/vi/i/hqdefault.jpg.https://i.ytimg.com/vi/ytimg/hqdefault.jpg.https://i.ytimg.com/vi/com/hqdefault.jpg/https://i.ytimg.com/vi/vi/hqdefault.jpg/https://i.ytimg.com/vi/be/hqdefault.jpg/https://i.ytimg.com/vi/hqdefault/hqdefault.jpg.https://i.ytimg.com/vi/jpg/hqdefault.jpg/https://i.ytimg.com/vi/https:/hqdefault.jpg//https://i.ytimg.com/vi/i/hqdefault.jpg.https://i.ytimg.com/vi/ytimg/hqdefault.jpg.https://i.ytimg.com/vi/com/hqdefault.jpg/https://i.ytimg.com/vi/vi/hqdefault.jpg/https://i.ytimg.com/vi/bOxza0rLv1o/hqdefault.jpg/https://i.ytimg.com/vi/hqdefault/hqdefault.jpg.https://i.ytimg.com/vi/jpg/hqdefault.jpg);

anyone can help me with this? thanks for your help

Upvotes: 1

Views: 59

Answers (1)

Wiktor Stribiżew
Wiktor Stribiżew

Reputation: 626932

You may use

'~(?:https?://(?:www\.)?youtu(?:be\.com/watch\?v=|\.be/))?([a-zA-Z0-9_\-+?:]+)/?~'

See the regex demo. Pattern details:

  • (?: - start of the 1st alternation group:
    • https?://(?:www\.)?youtu - https:// or https://, then an optional www. substring and then youtu substring
    • (?: - start of the 2nd alternation group:
      • be\.com/watch\?v= - be.com/watch?v= substring
      • | - or
      • \.be/ - .be/ substring
    • ) - end of the 2nd alternation group
  • )? - 1 or 0 times
  • ([a-zA-Z0-9_\-+?:]+) - Group 1: one or more word, -, +, ? or : chars
  • /? - an optional /

See the PHP demo online:

$string = array('http://youtube.com/watch?v=slBEtqC_JsI', 'https://youtu.be/bOxza0rLv1o', 'http://youtube.com/watch?v=slBEtqC_JSJ/');
$search = '~(?:https?://(?:www\.)?youtu(?:be\.com/watch\?v=|\.be/))?([a-zA-Z0-9_+?:-]+)/?~';
$replace = 'https://i.ytimg.com/vi/$1/hqdefault.jpg';   
$soc_youtube = preg_replace($search,$replace,$string);
print_r($soc_youtube);

Output:

Array
(
    [0] => https://i.ytimg.com/vi/slBEtqC_JsI/hqdefault.jpg
    [1] => https://i.ytimg.com/vi/bOxza0rLv1o/hqdefault.jpg
    [2] => https://i.ytimg.com/vi/slBEtqC_JSJ/hqdefault.jpg
)

Upvotes: 1

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