3v4l.org

run code in 300+ PHP versions simultaneously
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Output for 5.6.25 - 5.6.38, 7.0.10 - 7.0.32, 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 - 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.19, 8.4.1 - 8.4.5
bool(true) int(0) bool(true) int(0) bool(true) int(3) array(1) { [0]=> string(3) "foo" } bool(true) int(3) bool(true) int(3)
Output for 5.6.0 - 5.6.24, 7.0.0 - 7.0.9
Warning: mb_ereg_search(): Empty regular expression in /in/NMmr1 on line 5 bool(true) int(1) Warning: mb_ereg_search(): Empty regular expression in /in/NMmr1 on line 8 bool(true) int(2) bool(true) int(3) array(1) { [0]=> string(1) "o" } Warning: mb_ereg_search(): Empty regular expression in /in/NMmr1 on line 15 bool(true) int(4) bool(false) int(3)
preferences:
144.59 ms | 412 KiB | 5 Q