3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $params = 'folder=BP+Portrait+Award+2014&format=jpg&public_id=test_dtestddddd_test_1407335836timetamp=1407335836'; $urlSafeParams = preg_replace('/(?<=folder)*%2C/', ',', $params); print $urlSafeParams;
based on ES2tK
Output for 5.3.19 - 5.3.29, 5.4.9 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
folder=BP+Portrait+Award+2014&format=jpg&public_id=test_dtestddddd_test_1407335836timetamp=1407335836
Output for 4.3.11 - 5.3.18, 5.4.0 - 5.4.8
Warning: preg_replace(): Compilation failed: nothing to repeat at offset 11 in /in/4RKcD on line 4
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: nothing to repeat at offset 11 in /in/4RKcD on line 4