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<?php $strings=[ 'e123f654g933c', 'e123f654g933ce99f77g66c' ]; foreach($strings as $string){ var_export( array_map( function($v){ return preg_match_all('/[e-g]\d+/',$v,$out2)?$out2[0]:[]; }, preg_match_all('/(?:[e-g]\d+)+(?=c)/',$string,$out1)?$out1[0]:[] ) ); echo"\n\n"; }
Output for 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
array ( 0 => array ( 0 => 'e123', 1 => 'f654', 2 => 'g933', ), ) array ( 0 => array ( 0 => 'e123', 1 => 'f654', 2 => 'g933', ), 1 => array ( 0 => 'e99', 1 => 'f77', 2 => 'g66', ), )
preferences:
193.5 ms | 403 KiB | 159 Q