3v4l.org

run code in 300+ PHP versions simultaneously
<?php mb_internal_encoding("UTF-8"); echo mb_strtoupper("i i ı ğ Ğ Τάχιστη αλώπηξ βαφής ψημένη γη, δρασκελίζει υπέρ νωθρού κυνός"); echo "\n"; echo mb_strtoupper("i i ı ğ Ğ Τάχιστη αλώπηξ βαφής ψημένη γη, δρασκελίζει υπέρ νωθρού κυνός"); echo "\n"; echo mb_strtolower("İ"); echo "\n" echo strtoupper("i ı ğ Ğ Τάχιστη αλώπηξ βαφής ψημένη γη, δρασκελίζει υπέρ νωθρού κυνός"); ?>

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
5.4.150.0120.04612.35
5.4.140.0260.07812.04
5.4.130.0130.04612.02
5.4.120.0150.04411.98
5.4.110.0140.04211.99
5.4.100.0160.04011.98
5.4.90.0210.05311.98
5.4.80.0120.04611.98
5.4.70.0180.06811.98
5.4.60.0140.04311.98
5.4.50.0160.04211.98
5.4.40.0140.04211.97
5.4.30.0100.04711.96
5.4.20.0160.05511.96
5.4.10.0120.04411.96
5.4.00.0150.04211.46
5.3.250.0190.04012.72
5.3.240.0180.04512.72
5.3.230.0180.04512.71
5.3.220.0180.04312.68
5.3.210.0160.04512.68
5.3.200.0170.04712.68
5.3.190.0230.06912.68
5.3.180.0150.04512.67
5.3.170.0160.05912.67
5.3.160.0160.04512.67
5.3.150.0150.04412.68
5.3.140.0140.04512.66
5.3.130.0220.05412.66
5.3.120.0210.07112.66
5.3.110.0160.04512.65
5.3.100.0150.04512.12
5.3.90.0220.06712.08
5.3.80.0140.04412.08
5.3.70.0160.04412.08
5.3.60.0220.05212.06
5.3.50.0140.04512.00
5.3.40.0130.04712.00
5.3.30.0270.06311.94
5.3.20.0150.04511.72
5.3.10.0120.04311.68
5.3.00.0130.04311.66

preferences:
139.83 ms | 1394 KiB | 7 Q