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<?php $a = 0; for ($i = 0; $i < 5; ++$i) var_dump(++$a); for ($i = 0; $i < 5; ++$i) var_dump(str_pad(++$a, 3, '0', STR_PAD_LEFT));
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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
int(1) int(2) int(3) int(4) int(5) string(3) "006" string(3) "007" string(3) "008" string(3) "009" string(3) "010"
preferences:
215.25 ms | 404 KiB | 292 Q