3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match('/^.?/u', "\xef\xbf\xbf")); var_dump(preg_match('/^.?/u', "\xf4\x8f\xbf\xbf"));

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)
8.3.40.0100.01018.84
8.3.30.0100.00318.96
8.3.20.0000.00720.25
8.3.10.0040.00422.04
8.3.00.0080.00022.52
8.2.170.0100.01022.96
8.2.160.0130.00720.35
8.2.150.0040.00424.18
8.2.140.0050.00324.66
8.2.130.0110.00726.16
8.2.120.0060.00319.77
8.2.110.0060.00321.91
8.2.100.0070.00417.72
8.2.90.0040.00417.91
8.2.80.0040.00417.97
8.2.70.0080.00017.60
8.2.60.0050.00317.80
8.2.50.0040.00418.07
8.2.40.0040.00418.09
8.2.30.0000.00717.85
8.2.20.0050.00317.61
8.2.10.0000.00817.71
8.2.00.0000.00817.74
8.1.270.0040.00420.40
8.1.260.0070.00726.35
8.1.250.0030.00628.09
8.1.240.0060.00322.42
8.1.230.0080.00420.88
8.1.220.0040.00417.74
8.1.210.0030.00618.89
8.1.200.0100.00017.23
8.1.190.0060.00317.27
8.1.180.0080.00019.01
8.1.170.0080.00018.58
8.1.160.0040.00422.15
8.1.150.0050.00218.73
8.1.140.0040.00417.52
8.1.130.0030.00317.76
8.1.120.0000.00817.39
8.1.110.0070.00017.43
8.1.100.0050.00217.38
8.1.90.0000.00717.38
8.1.80.0000.00817.54
8.1.70.0000.00717.34
8.1.60.0000.00817.59
8.1.50.0070.00017.39
8.1.40.0050.00317.39
8.1.30.0040.00417.52
8.1.20.0030.00617.69
8.1.10.0000.00717.59
8.1.00.0060.00717.30
8.0.300.0040.00419.87
8.0.290.0040.00416.93
8.0.280.0030.00318.39
8.0.270.0030.00517.19
8.0.260.0000.00816.84
8.0.250.0040.00417.00
8.0.240.0040.00416.96
8.0.230.0050.00216.90
8.0.220.0000.00716.89
8.0.210.0070.00016.91
8.0.200.0000.00617.04
8.0.190.0070.00017.03
8.0.180.0000.00716.96
8.0.170.0050.00316.83
8.0.160.0070.00016.92
8.0.150.0000.00716.87
8.0.140.0050.00316.82
8.0.130.0030.00313.38
8.0.120.0000.00816.91
8.0.110.0020.00516.95
8.0.100.0050.00216.86
8.0.90.0000.00816.76
8.0.80.0030.01116.91
8.0.70.0050.00316.88
8.0.60.0040.00416.96
8.0.50.0040.00417.02
8.0.30.0120.00916.97
8.0.20.0130.01217.40
8.0.10.0070.00017.07
8.0.00.0030.01416.75
7.4.330.0000.00515.04
7.4.320.0030.00316.58
7.4.300.0060.00016.67
7.4.290.0000.00616.52
7.4.280.0000.00716.68
7.4.270.0000.00716.52
7.4.260.0030.00316.54
7.4.250.0000.00716.59
7.4.240.0000.00716.54
7.4.230.0030.00616.55
7.4.220.0080.01116.68
7.4.210.0090.00616.79
7.4.200.0030.00316.62
7.4.190.0000.00716.45
7.4.160.0120.00316.33
7.4.150.0190.00017.40
7.4.140.0120.00917.86
7.4.130.0080.00816.39
7.4.120.0090.00816.52
7.4.110.0100.00716.50
7.4.100.0100.00716.77
7.4.90.0120.00916.59
7.4.80.0040.01419.39
7.4.70.0110.00716.45
7.4.60.0110.00516.48
7.4.50.0080.00016.64
7.4.40.0030.01322.77
7.4.30.0050.01116.40
7.4.00.0120.00015.09
7.3.330.0060.00013.16
7.3.320.0050.00013.30
7.3.310.0070.00016.38
7.3.300.0000.00716.19
7.3.290.0070.01316.36
7.3.280.0070.00816.34
7.3.270.0090.00917.40
7.3.260.0110.00716.54
7.3.250.0130.00516.45
7.3.240.0080.00816.29
7.3.230.0180.01216.41
7.3.210.0040.01416.71
7.3.200.0090.01119.39
7.3.190.0070.01516.23
7.3.180.0030.01316.27
7.3.170.0130.00316.58
7.3.160.0090.00816.47
7.3.120.0040.01114.54
7.3.110.0000.01614.82
7.3.100.0030.01314.82
7.3.90.0060.00614.92
7.3.80.0060.00614.51
7.3.70.0130.00314.88
7.3.60.0120.00314.96
7.3.50.0070.00714.86
7.3.40.0060.00614.89
7.3.30.0030.00914.87
7.3.20.0060.00916.65
7.3.10.0030.01016.68
7.3.00.0000.01416.73
7.2.330.0070.01116.73
7.2.320.0090.00916.48
7.2.310.0060.01116.60
7.2.300.0080.00816.36
7.2.290.0090.00616.64
7.2.240.0040.01415.16
7.2.230.0070.01115.04
7.2.220.0030.01215.16
7.2.210.0040.01114.91
7.2.200.0060.00614.79
7.2.190.0000.01414.78
7.2.180.0070.01115.07
7.2.170.0090.00615.06
7.2.160.0040.01115.06
7.2.150.0040.01117.09
7.2.140.0060.00916.95
7.2.130.0090.00616.96
7.2.120.0140.00316.96
7.2.110.0060.00617.06
7.2.100.0110.00416.94
7.2.90.0030.01316.70
7.2.80.0070.01016.79
7.2.70.0060.00616.97
7.2.60.0140.00316.80
7.2.50.0060.00916.82
7.2.40.0040.00816.98
7.2.30.0100.00716.83
7.2.20.0060.01016.93
7.2.10.0110.00016.83
7.2.00.0060.01016.70
7.1.330.0090.00616.05
7.1.320.0100.00315.84
7.1.310.0030.00615.64
7.1.300.0100.00315.92
7.1.290.0100.00315.90
7.1.280.0060.00616.00
7.1.270.0070.00315.98
7.1.260.0070.00715.62
7.1.250.0090.00615.55
7.1.200.0000.00815.59
7.1.70.0040.00717.27
7.1.60.0100.01319.50
7.1.50.0040.01816.97
7.1.00.0030.03722.36
7.0.200.0040.00416.46
7.0.140.0000.07722.12
7.0.60.0070.07020.00
7.0.50.0030.04017.91
7.0.40.0100.04719.98
7.0.30.0200.04720.21
7.0.20.0370.07320.19
7.0.10.0030.06720.01
7.0.00.0030.08720.01
5.6.280.0030.07321.09
5.6.210.0000.04720.64
5.6.200.0130.07318.13
5.6.190.0130.08720.46
5.6.180.0370.03720.43
5.6.170.0330.04720.71
5.6.160.0070.07720.46
5.6.150.0030.09018.22
5.6.140.0070.07718.20
5.6.130.0100.05718.09
5.6.120.0130.07721.11
5.6.110.0070.06720.98
5.6.100.0100.08320.95
5.6.90.0270.04320.99
5.6.80.0070.08020.40
5.5.350.3600.03020.39
5.5.340.0130.07317.91
5.5.330.0100.07320.36
5.5.320.0170.04320.29
5.5.310.0330.05320.43
5.5.300.0070.08017.92
5.5.290.0030.08318.02
5.5.280.0030.09020.72
5.5.270.0070.08020.64
5.5.260.0070.07720.75
5.5.250.0070.06720.68
5.5.240.0330.07020.15
5.4.450.0330.07019.57
5.4.440.0230.08319.54
5.4.430.0300.04719.10
5.4.420.0270.04019.21
5.4.410.0330.04019.13
5.4.400.0400.04719.13
5.4.390.0330.07319.10
5.4.380.0400.05018.88
5.4.370.0270.04319.16
5.4.360.0300.03319.21
5.4.350.0270.04719.08
5.4.340.0300.03719.09
5.4.320.0330.03719.25
5.4.310.0270.03719.09
5.4.300.0430.03719.04
5.4.290.0270.08319.13
5.4.280.0270.03719.07
5.4.270.0270.03719.15
5.4.260.0270.03719.07
5.4.250.0270.07719.07
5.4.240.0330.03318.94
5.4.230.0270.03719.09
5.4.220.0430.05719.03
5.4.210.0230.04019.24
5.4.200.0330.06319.26
5.4.190.0330.07319.11
5.4.180.0330.07019.08
5.4.170.0330.06719.06
5.4.160.0400.04019.10
5.4.150.0300.06718.78
5.4.140.0330.03016.43
5.4.130.0370.07016.25
5.4.120.0370.03716.45
5.4.110.0370.06316.06
5.4.100.0400.06716.50
5.4.90.0430.06016.42
5.4.80.0400.04016.33
5.4.70.0270.04316.49
5.4.60.0400.04016.47
5.4.50.0370.06316.43
5.4.40.0330.06716.36
5.4.30.0370.06316.38
5.4.20.0430.05316.36
5.4.10.0270.04316.45
5.4.00.0300.07015.61
5.3.290.0400.06314.61
5.3.280.0270.04014.54
5.3.270.0400.07014.69
5.3.260.0430.06714.43
5.3.250.0270.04314.43
5.3.240.0300.06014.55
5.3.230.0300.05014.54
5.3.220.0430.06314.50
5.3.210.0400.06714.40
5.3.200.0300.03314.67
5.3.190.0300.04314.40
5.3.180.0230.04014.60
5.3.170.0300.06014.46
5.3.160.0270.03714.40
5.3.150.0230.04014.43
5.3.140.0230.04014.41
5.3.130.0200.04314.38
5.3.120.0270.03714.63
5.3.110.0300.07014.49
5.3.100.0500.03313.87
5.3.90.0300.04713.96
5.3.80.0430.07313.86
5.3.70.0430.05313.96
5.3.60.0300.04714.02
5.3.50.0430.06314.04
5.3.40.0400.05713.89
5.3.30.0330.03313.89
5.3.20.0330.04313.63
5.3.10.0230.05713.49
5.3.00.0270.03713.48
5.2.170.0330.03312.50
5.2.160.0230.02712.50
5.2.150.0270.02312.50
5.2.140.0300.05012.50
5.2.130.0300.04312.50
5.2.120.0400.05012.50
5.2.110.0230.06012.50
5.2.100.0300.05712.50
5.2.90.0230.02712.50
5.2.80.0270.05712.50
5.2.70.0330.03312.50
5.2.60.0330.05012.50
5.2.50.0270.03312.50
5.2.40.0130.03312.50
5.2.30.0230.06012.50
5.2.20.0270.03312.50
5.2.10.0270.05312.50
5.2.00.0230.05712.50
5.1.60.0270.03012.50
5.1.50.0200.03712.50
5.1.40.0200.03312.50
5.1.30.0270.04712.50
5.1.20.0230.05012.50
5.1.10.0230.04012.50
5.1.00.0270.03012.50
5.0.50.0130.02312.50
5.0.40.0070.02312.50
5.0.30.0130.03012.50
5.0.20.0070.03012.50
5.0.10.0130.01712.50
5.0.00.0070.03712.50
4.4.90.0070.01712.50
4.4.80.0100.01312.50
4.4.70.0100.01312.50
4.4.60.0100.01312.50
4.4.50.0030.02312.50
4.4.40.0100.03012.50
4.4.30.0070.01712.50
4.4.20.0170.01012.50
4.4.10.0100.01712.50
4.4.00.0030.02712.50
4.3.110.0070.01712.50
4.3.100.0030.01712.50
4.3.90.0070.01312.50
4.3.80.0130.02312.50
4.3.70.0070.01312.50
4.3.60.0100.01712.50
4.3.50.0070.01712.50
4.3.40.0030.02712.50
4.3.30.0030.01712.50
4.3.20.0030.01712.50
4.3.10.0030.01712.50
4.3.00.0070.01012.50

preferences:
43.73 ms | 400 KiB | 5 Q