3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match('//u', "\xE3\x81\x82", $matches)); var_dump(preg_match('//u', "\xF0\xA0\x80\x8B", $matches)); var_dump(preg_match('//u', "𠀋", $matches)); var_dump("\xF0\xA0\x80\x8B" == "𠀋");

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)
8.3.60.0110.00718.67
8.3.50.0150.00723.00
8.3.40.0110.00418.81
8.3.30.0070.00718.81
8.3.20.0040.00420.38
8.3.10.0060.00323.41
8.3.00.0080.00019.38
8.2.180.0080.01116.88
8.2.170.0160.00622.96
8.2.160.0070.00720.52
8.2.150.0050.00324.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00421.08
8.2.110.0050.00520.45
8.2.100.0090.00317.83
8.2.90.0030.00519.05
8.2.80.0040.00417.97
8.2.70.0050.00317.50
8.2.60.0040.00417.93
8.2.50.0080.00018.07
8.2.40.0040.00420.00
8.2.30.0050.00318.01
8.2.20.0040.00417.76
8.2.10.0000.00818.07
8.2.00.0040.00417.73
8.1.280.0110.00725.92
8.1.270.0080.00023.88
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0060.00322.09
8.1.230.0060.00619.15
8.1.220.0080.00017.74
8.1.210.0090.00018.77
8.1.200.0090.00417.13
8.1.190.0000.00817.23
8.1.180.0040.00418.10
8.1.170.0090.00018.67
8.1.160.0040.00422.04
8.1.150.0000.00718.75
8.1.140.0060.00317.50
8.1.130.0070.00017.69
8.1.120.0050.00217.40
8.1.110.0070.00017.37
8.1.100.0000.00717.50
8.1.90.0040.00417.48
8.1.80.0000.00717.52
8.1.70.0030.00317.43
8.1.60.0080.00017.48
8.1.50.0040.00417.55
8.1.40.0080.00017.51
8.1.30.0050.00317.64
8.1.20.0030.00717.50
8.1.10.0030.00617.64
8.1.00.0050.00217.53
8.0.300.0030.00518.77
8.0.290.0050.00316.63
8.0.280.0000.00718.32
8.0.270.0030.00317.05
8.0.260.0030.00317.09
8.0.250.0000.00817.05
8.0.240.0000.00817.07
8.0.230.0040.00416.93
8.0.220.0030.00316.95
8.0.210.0000.00816.93
8.0.200.0070.00016.91
8.0.190.0020.00517.01
8.0.180.0040.00416.99
8.0.170.0050.00316.83
8.0.160.0050.00216.90
8.0.150.0000.00716.93
8.0.140.0070.00016.87
8.0.130.0050.00013.39
8.0.120.0000.00816.88
8.0.110.0080.00016.79
8.0.100.0070.00016.99
8.0.90.0030.00516.98
8.0.80.0030.01416.94
8.0.70.0000.00816.95
8.0.60.0000.00716.96
8.0.50.0040.00417.02
8.0.30.0150.00516.94
8.0.20.0110.00817.40
8.0.10.0060.00316.90
8.0.00.0100.00916.65
7.4.330.0050.00015.00
7.4.320.0060.00016.67
7.4.300.0040.00416.71
7.4.290.0000.00716.66
7.4.280.0100.00016.63
7.4.270.0030.00716.56
7.4.260.0070.00016.67
7.4.250.0000.00816.68
7.4.240.0050.00216.58
7.4.230.0050.00316.75
7.4.220.0000.01916.62
7.4.210.0110.00316.81
7.4.200.0030.00316.76
7.4.160.0130.00316.53
7.4.150.0120.01217.40
7.4.140.0150.00617.86
7.4.130.0100.01016.55
7.4.120.0090.00816.55
7.4.110.0060.01016.51
7.4.100.0070.01016.62
7.4.90.0140.00316.68
7.4.80.0140.00419.39
7.4.70.0130.00316.55
7.4.60.0060.01016.36
7.4.50.0030.00316.35
7.4.40.0090.00916.62
7.4.30.0050.01116.61
7.4.00.0120.00614.81
7.3.330.0000.00713.17
7.3.320.0030.00313.07
7.3.310.0030.00316.31
7.3.300.0070.00016.30
7.3.290.0090.01216.34
7.3.280.0130.00316.36
7.3.270.0040.01317.40
7.3.260.0070.01016.22
7.3.250.0090.00916.60
7.3.240.0100.00716.55
7.3.230.0090.00916.55
7.3.210.0030.01416.32
7.3.200.0160.00619.39
7.3.190.0040.01316.53
7.3.180.0050.01116.48
7.3.170.0070.00916.43
7.3.160.0110.00616.38
7.2.330.0130.01316.68
7.2.320.0060.01216.51
7.2.310.0070.01016.50
7.2.300.0070.01116.45
7.2.290.0070.01016.52
7.2.00.0040.01219.54
7.1.100.0060.00618.28
7.1.70.0060.00617.10
7.1.60.0150.00919.46
7.1.50.0100.01017.06
7.1.00.0030.07722.58
7.0.200.0040.00416.63
7.0.140.0030.07322.00
7.0.60.0100.07019.91
7.0.50.0100.03717.81
7.0.40.0130.06720.06
7.0.30.0370.07020.11
7.0.20.0230.09020.10
7.0.10.0000.05320.19
7.0.00.0070.07320.19
5.6.280.0030.07321.04
5.6.210.0070.08320.50
5.6.200.0070.05018.15
5.6.190.0100.07020.35
5.6.180.0400.06720.41
5.6.170.0270.06720.33
5.6.160.0000.05020.44
5.6.150.0130.06018.13
5.6.140.0030.08018.18
5.6.130.0130.07018.12
5.6.120.0100.04321.02
5.6.110.0130.07320.97
5.6.100.0070.04321.10
5.6.90.0070.08020.97
5.6.80.0130.05020.38
5.5.350.0330.06720.46
5.5.340.0030.03717.98
5.5.330.0100.03320.19
5.5.320.0030.04320.20
5.5.310.0270.04020.50
5.5.300.0000.06717.91
5.5.290.0070.08717.92
5.5.280.0030.04020.79
5.5.270.0130.07320.76
5.5.260.0130.07020.72
5.5.250.0070.08320.70
5.5.240.0070.08320.25
5.4.450.0630.05719.27
5.4.440.0870.06719.41
5.4.430.0970.05019.13
5.4.420.0400.05019.54
5.4.410.0770.04719.45
5.4.400.0770.06019.21
5.4.390.0770.04019.08
5.4.380.0430.05318.77
5.4.370.0370.07318.68
5.4.360.0330.05018.68
5.4.350.0330.06318.53
5.4.340.0430.05018.76
5.4.320.0060.03812.45
5.4.310.0050.04212.45
5.4.300.0100.04112.45
5.4.290.0060.03712.45
5.4.280.0070.03312.35
5.4.270.0080.04412.35
5.4.260.0060.03612.35
5.4.250.0100.03912.35
5.4.240.0050.03712.34
5.4.230.0060.03612.34
5.4.220.0050.03512.34
5.4.210.0070.03712.34
5.4.200.0080.03412.34
5.4.190.0070.04112.33
5.4.180.0060.03612.33
5.4.170.0030.03812.34
5.4.160.0050.03512.34
5.4.150.0050.03612.34
5.4.140.0070.03612.02
5.4.130.0040.03512.01
5.4.120.0060.03511.97
5.4.110.0020.03911.96
5.4.100.0120.03211.96
5.4.90.0050.03711.96
5.4.80.0060.03511.96
5.4.70.0020.03711.96
5.4.60.0060.03711.96
5.4.50.0010.03811.96
5.4.40.0050.03611.95
5.4.30.0040.03911.95
5.4.20.0050.03611.95
5.4.10.0050.03511.95
5.4.00.0060.03411.44
5.3.290.0100.04012.80
5.3.280.0090.04112.71
5.3.270.0040.04412.72
5.3.260.0050.04412.72
5.3.250.0120.03212.72
5.3.240.0080.03612.72
5.3.230.0100.04212.71
5.3.220.0080.03712.68
5.3.210.0060.04112.68
5.3.200.0050.03612.68
5.3.190.0050.03712.68
5.3.180.0070.03412.68
5.3.170.0070.03612.67
5.3.160.0050.04012.68
5.3.150.0060.03712.67
5.3.140.0130.03612.66
5.3.130.0040.04112.65
5.3.120.0070.03712.66
5.3.110.0100.04112.66
5.3.100.0050.03712.12
5.3.90.0050.03712.08
5.3.80.0040.03912.08
5.3.70.0090.03212.08
5.3.60.0050.03912.06
5.3.50.0070.03312.00
5.3.40.0070.04212.00
5.3.30.0070.03911.94
5.3.20.0050.03511.72
5.3.10.0050.03411.69
5.3.00.0050.03511.68
5.2.170.0050.0299.18
5.2.160.0060.0299.18
5.2.150.0050.0359.18
5.2.140.0080.0309.17
5.2.130.0030.0299.13
5.2.120.0060.0359.13
5.2.110.0030.0309.14
5.2.100.0030.0299.14
5.2.90.0080.0319.13
5.2.80.0060.0289.14
5.2.70.0060.0379.14
5.2.60.0060.0279.09
5.2.50.0090.0249.06
5.2.40.0020.0309.04
5.2.30.0050.0309.01
5.2.20.0080.0249.00
5.2.10.0040.0318.92
5.2.00.0070.0268.77
5.1.60.0030.0248.06
5.1.50.0040.0248.06
5.1.40.0050.0228.04
5.1.30.0000.0298.39
5.1.20.0030.0278.41
5.1.10.0030.0278.14
5.1.00.0060.0248.14
5.0.50.0040.0206.62
5.0.40.0010.0226.48
5.0.30.0060.0296.29
5.0.20.0040.0196.26
5.0.10.0060.0176.24
5.0.00.0010.0376.23
4.4.90.0030.0174.78
4.4.80.0050.0134.75
4.4.70.0020.0164.76
4.4.60.0020.0164.75
4.4.50.0030.0144.77
4.4.40.0030.0254.70
4.4.30.0020.0154.76
4.4.20.0010.0164.84
4.4.10.0030.0154.85
4.4.00.0020.0254.76
4.3.110.0020.0164.67
4.3.100.0070.0154.67
4.3.90.0020.0164.63
4.3.80.0030.0234.58
4.3.70.0020.0144.63
4.3.60.0020.0144.63
4.3.50.0030.0144.63
4.3.40.0020.0244.54
4.3.30.0010.0163.29
4.3.20.0060.0123.26
4.3.10.0030.0143.23
4.3.00.0100.0237.55

preferences:
35.56 ms | 401 KiB | 5 Q