3v4l.org

run code in 300+ PHP versions simultaneously
<?php $yourstring='C7,22801422CFE0F63,2280141C5EF0F63,22801402EFD0F63,2280138C5ED0F63,228024329897530,228023829877530'; $pattern = '~ (?!^)(\h*,\h*(?<value>[0-9]{7}[A-F0-9]{8})) | (?<first>[a-zA-Z0-9]+)(?=(?1)*$) ~xA'; if ( preg_match_all($pattern, $yourstring, $matches) ) { echo $matches['first'][0], PHP_EOL; print_r(array_values(array_filter($matches['value']))); }
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.27, 8.4.1 - 8.4.14
C7 Array ( [0] => 22801422CFE0F63 [1] => 2280141C5EF0F63 [2] => 22801402EFD0F63 [3] => 2280138C5ED0F63 [4] => 228024329897530 [5] => 228023829877530 )
preferences:
131.9 ms | 408 KiB | 5 Q