3v4l.org

run code in 300+ PHP versions simultaneously
<?php $strings = [ 'dir1summary', 'dir10summary', 'dir1summarydue', 'dir10summarydue', 'directive1', 'directive10', 'directivecode1', 'directivecode10', ]; foreach ($strings as $string) { sscanf($string, '%[^0-9]%d%s', $dir, $num, $str); printf("%s%s%02d\n", str_pad($dir, 9, 'ective'), $str, $num); }
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
directivesummary01 directivesummary10 directivesummarydue01 directivesummarydue10 directivesummarydue01 directivesummarydue10 directivecodesummarydue01 directivecodesummarydue10
preferences:
111.11 ms | 407 KiB | 5 Q