3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = "0"; echo empty(preg_match('/\S/', $str););

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)
5.4.320.0030.05019.06
5.4.310.0100.05719.06
5.4.300.0030.05019.10
5.4.290.0100.05319.31
5.4.280.0030.08019.13
5.4.270.0030.06719.16
5.4.260.0030.07718.99
5.4.250.0000.04319.23
5.4.240.0030.07318.96
5.4.230.0000.07018.84
5.4.220.0070.07319.21
5.4.210.0030.07719.14
5.4.200.0000.05318.94
5.4.190.0030.04018.84
5.4.180.0100.07018.95
5.4.170.0070.06019.12
5.4.160.0000.05719.23
5.4.150.0000.04019.06
5.4.140.0000.04716.50
5.4.130.0030.05716.35
5.4.120.0030.06716.33
5.4.110.0030.07316.54
5.4.100.0000.08016.45
5.4.90.0030.07016.55
5.4.80.0030.06016.35
5.4.70.0130.06016.43
5.4.60.0030.04716.49
5.4.50.0030.05716.49
5.4.40.0070.06316.55
5.4.30.0070.04016.53
5.4.20.0030.06316.51
5.4.10.0030.05316.35
5.4.00.0000.06316.13
5.3.290.0100.07714.71
5.3.280.0000.04014.62
5.3.270.0200.03014.45
5.3.260.0030.05014.46
5.3.250.0000.04314.44
5.3.240.0030.04314.65
5.3.230.0030.07714.43
5.3.220.0030.07014.66
5.3.210.0030.08314.54
5.3.200.0030.06314.40
5.3.190.0070.05014.45
5.3.180.0000.06014.59
5.3.170.0070.07014.54
5.3.160.0000.05014.54
5.3.150.0000.07714.45
5.3.140.0030.04714.39
5.3.130.0030.06714.44
5.3.120.0000.05714.50
5.3.110.0000.07014.50
5.3.100.0170.06713.90
5.3.90.0030.05013.87
5.3.80.0030.05313.96
5.3.70.0000.05014.06
5.3.60.0030.07313.91
5.3.50.0100.03713.99
5.3.40.0000.07313.89
5.3.30.0030.07313.86
5.3.20.0030.07013.78
5.3.10.0100.04713.52
5.3.00.0000.07313.56
5.2.170.0030.06712.33
5.2.160.0030.07012.33
5.2.150.0000.06712.33
5.2.140.0030.05312.33
5.2.130.0000.06012.33
5.2.120.0030.06012.33
5.2.110.0030.03712.33
5.2.100.0030.04012.33
5.2.90.0030.05712.33
5.2.80.0000.06012.33
5.2.70.0000.06012.33
5.2.60.0030.03312.33
5.2.50.0030.06012.33
5.2.40.0070.03712.33
5.2.30.0000.06312.33
5.2.20.0000.06312.33
5.2.10.0030.04012.33
5.2.00.0070.04012.33
5.1.60.0070.02712.33
5.1.50.0030.03312.33
5.1.40.0100.02712.33
5.1.30.0000.03012.33
5.1.20.0070.02312.33
5.1.10.0030.05712.33
5.1.00.0000.05012.33
5.0.50.0070.04012.33
5.0.40.0000.03712.33
5.0.30.0030.06012.33
5.0.20.0000.04712.33
5.0.10.0000.02712.33
5.0.00.0030.03012.33
4.4.90.0000.02312.33
4.4.80.0000.01712.33
4.4.70.0000.02012.33
4.4.60.0030.03312.33
4.4.50.0100.02712.33
4.4.40.0030.05012.33
4.4.30.0000.02012.33
4.4.20.0030.01312.33
4.4.10.0100.02312.33
4.4.00.0000.03012.33
4.3.110.0070.03012.33
4.3.100.0000.03012.33
4.3.90.0000.02312.33
4.3.80.0000.03312.33
4.3.70.0030.03712.33
4.3.60.0000.03012.33
4.3.50.0000.02312.33
4.3.40.0030.03012.33
4.3.30.0000.02012.33
4.3.20.0000.01712.33
4.3.10.0030.03012.33
4.3.00.0000.02012.33

preferences:
142.33 ms | 1398 KiB | 7 Q