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<?php $strings = [ "https://www.instagram.com/p/BxKRx5CHn5i/", "https://www.instagram.com/p/BrODg5XHlE6/?utm_source=ig_share_sheet&igshid=znsinsart176", "https://www.instagram.com/p/BxKRx5CHn5i/", "https://www.instagram.com/username/p/BxE5PpZhoa9/", "https://www.instagram.com/username/p/BxE5PpZhoa9/#look=overhere" ]; foreach ($strings as $string) { $pos = strpos($string, '/p/'); if ($pos === false) { continue; } echo substr($string, $pos + 3, 11); echo " (from $string)\n"; }
Output for git.master, git.master_jit, rfc.property-hooks
BxKRx5CHn5i (from https://www.instagram.com/p/BxKRx5CHn5i/) BrODg5XHlE6 (from https://www.instagram.com/p/BrODg5XHlE6/?utm_source=ig_share_sheet&igshid=znsinsart176) BxKRx5CHn5i (from https://www.instagram.com/p/BxKRx5CHn5i/) BxE5PpZhoa9 (from https://www.instagram.com/username/p/BxE5PpZhoa9/) BxE5PpZhoa9 (from https://www.instagram.com/username/p/BxE5PpZhoa9/#look=overhere)

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