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run code in 300+ PHP versions simultaneously
<?php var_dump(mb_ereg_replace('\B', '|', 'abc'));
Output for 5.6.0 - 5.6.24, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.6 - 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 - 8.2.18, 8.3.0 - 8.3.6
string(6) "a||b|c"
preferences:
180.9 ms | 403 KiB | 181 Q