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<?php $torrent = 'd8:announce37:http://blender.waag.org:6969/announce13:creation datei1212070099e4:infod6:lengthi196898674e4:name30:big_buck_bunny_720p_stereo.ogg12:piece lengthi262144e6:pieces15040:DñÀsÑ45/'; $regex = "/(lengthi[0-9]+e)/i"; $sizes = array(); preg_replace_callback($regex, function($matches) use(&$sizes) { $sizes[] = substr($matches[2], 0, $matches[1]); }, $torrent); var_dump($sizes); // I want to get "262144", you can see this just before "pieces", top right
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined array key 2 in /in/D9MQd on line 12 Deprecated: substr(): Passing null to parameter #1 ($string) of type string is deprecated in /in/D9MQd on line 12 Fatal error: Uncaught TypeError: substr(): Argument #3 ($length) must be of type ?int, string given in /in/D9MQd:12 Stack trace: #0 /in/D9MQd(12): substr('', 0, 'lengthi19689867...') #1 [internal function]: {closure}(Array) #2 /in/D9MQd(9): preg_replace_callback('/(lengthi[0-9]+...', Object(Closure), 'd8:announce37:h...') #3 {main} thrown in /in/D9MQd on line 12
Process exited with code 255.

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