3v4l.org

run code in 300+ PHP versions simultaneously
<?php $name = "eng%C3%A5%C2%BF%C2"; $name = preg_replace( array( '/[^a-zA-Z0-9]+/', '/_+/', '/^_/', '/_$/' ), array( '_', '_', '', '' ), $name ); echo $name;
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.0 - 7.2.33, 7.3.12 - 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
eng_C3_A5_C2_BF_C2
preferences:
226 ms | 406 KiB | 313 Q