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<?php $string = 'Chicago41Illinos9'; var_export( preg_replace_callback( '/\d+$/', fn($m) => ++$m[0], $string ) );
Output for 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
'Chicago41Illinos10'
preferences:
59.52 ms | 406 KiB | 5 Q