3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = 'a'; echo dechex(ord($string)) . "\n"; var_export(preg_match("/[\x80-\xFF]/", $string));

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)
8.3.60.0000.01418.43
8.3.50.0080.01122.17
8.3.40.0090.00918.71
8.3.30.0070.00718.92
8.3.20.0070.00020.30
8.3.10.0050.00323.70
8.3.00.0030.00519.48
8.2.180.0140.00016.75
8.2.170.0090.00622.96
8.2.160.0030.01020.41
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0000.00726.16
8.2.120.0060.00322.32
8.2.110.0030.00722.05
8.2.100.0000.01117.63
8.2.90.0000.00719.22
8.2.80.0030.00517.97
8.2.70.0040.00417.75
8.2.60.0100.00217.78
8.2.50.0090.00018.07
8.2.40.0030.00618.22
8.2.30.0040.00418.06
8.2.20.0040.00417.82
8.2.10.0000.00718.07
8.2.00.0040.00417.68
8.1.280.0000.01425.92
8.1.270.0060.00323.96
8.1.260.0070.00026.35
8.1.250.0070.00028.09
8.1.240.0030.00623.82
8.1.230.0040.00820.88
8.1.220.0040.00417.76
8.1.210.0040.00718.77
8.1.200.0090.00017.36
8.1.190.0090.00017.25
8.1.180.0080.00018.10
8.1.170.0030.00718.63
8.1.160.0050.00222.04
8.1.150.0040.00418.92
8.1.140.0040.00417.60
8.1.130.0000.00717.85
8.1.120.0070.00017.60
8.1.110.0000.00817.49
8.1.100.0040.00417.61
8.1.90.0000.00917.62
8.1.80.0040.00417.50
8.1.70.0030.00317.52
8.1.60.0050.00317.78
8.1.50.0040.00417.71
8.1.40.0000.00817.66
8.1.30.0050.00317.81
8.1.20.0000.00817.78
8.1.10.0060.00317.64
8.1.00.0040.00417.64
8.0.300.0070.00018.77
8.0.290.0000.00816.88
8.0.280.0000.00718.45
8.0.270.0000.00717.18
8.0.260.0060.00018.53
8.0.250.0040.00417.09
8.0.240.0030.00317.06
8.0.230.0000.00717.15
8.0.220.0000.00717.08
8.0.210.0000.00717.04
8.0.200.0030.00317.05
8.0.190.0060.00316.96
8.0.180.0000.00917.09
8.0.170.0030.00616.95
8.0.160.0030.00317.05
8.0.150.0040.00417.07
8.0.140.0050.00216.95
8.0.130.0060.00013.44
8.0.120.0040.00416.90
8.0.110.0000.00717.03
8.0.100.0050.00216.89
8.0.90.0000.00717.08
8.0.80.0060.01217.05
8.0.70.0000.00717.07
8.0.60.0000.00716.88
8.0.50.0080.00016.96
8.0.30.0080.01116.98
8.0.20.0090.01317.40
8.0.10.0000.00717.04
8.0.00.0110.01016.95
7.4.330.0030.00415.11
7.4.320.0000.00816.71
7.4.300.0000.00616.73
7.4.290.0070.00016.54
7.4.280.0000.00816.66
7.4.270.0070.00016.76
7.4.260.0120.00016.71
7.4.250.0000.00816.64
7.4.240.0020.00516.69
7.4.230.0060.00016.85
7.4.220.0100.00716.71
7.4.210.0030.01716.59
7.4.200.0000.00716.76
7.4.160.0140.00316.53
7.4.150.0140.00417.40
7.4.140.0130.00717.86
7.4.130.0060.01216.84
7.4.120.0120.00616.63
7.4.110.0070.01016.48
7.4.100.0110.00716.67
7.4.90.0090.00916.41
7.4.80.0030.01719.39
7.4.70.0090.01216.61
7.4.60.0060.00916.69
7.4.50.0030.00616.57
7.4.40.0120.00416.54
7.4.30.0090.00916.82
7.4.00.0080.00614.95
7.3.330.0000.00713.08
7.3.320.0000.00513.26
7.3.310.0030.00316.32
7.3.300.0000.00716.19
7.3.290.0070.00716.34
7.3.280.0070.01016.30
7.3.270.0080.01117.40
7.3.260.0060.01316.43
7.3.250.0090.01116.55
7.3.240.0070.01116.34
7.3.230.0090.01216.39
7.3.210.0150.00016.64
7.3.200.0030.01319.39
7.3.190.0180.00016.41
7.3.180.0120.00316.55
7.3.170.0090.01316.30
7.3.160.0110.00416.48
7.2.330.0060.01216.68
7.2.320.0070.01016.75
7.2.310.0060.01216.71
7.2.300.0080.00816.40
7.2.290.0060.01616.79
7.1.70.0320.00617.36
7.1.60.0060.01919.32
7.1.50.0070.01417.08
7.1.00.0070.07322.47
7.0.200.0060.00316.75
7.0.140.0000.08022.12
7.0.60.0100.06720.00
7.0.50.0100.07017.89
7.0.40.0030.06320.05
7.0.30.0430.04320.19
7.0.20.0230.06320.05
7.0.10.0000.09320.10
7.0.00.0100.04320.21
5.6.280.0100.06720.77
5.6.210.0100.10320.70
5.6.200.0130.08018.16
5.6.190.0100.07320.32
5.6.180.0230.08020.45
5.6.170.0330.08020.50
5.6.160.0100.08020.54
5.6.150.0130.07318.11
5.6.140.0100.07318.12
5.6.130.0130.07318.21
5.6.120.0070.05320.89
5.6.110.0030.08720.98
5.6.100.0070.06720.98
5.6.90.0070.08320.96
5.6.80.0130.07720.37
5.6.70.3900.03020.36
5.5.350.0330.07020.43
5.5.340.0000.04017.98
5.5.330.0100.04020.21
5.5.320.0230.03720.32
5.5.310.0270.05720.28
5.5.300.0070.07017.92
5.5.290.0030.07717.92
5.5.280.0070.07320.78
5.5.270.0000.08320.60
5.5.260.0070.05320.78
5.5.250.0030.09020.54
5.5.240.0270.06720.14
5.4.450.0700.05719.10
5.4.440.0970.05719.51
5.4.430.0170.05019.62
5.4.420.0870.06019.47
5.4.410.0730.05019.51
5.4.400.0900.05018.78
5.4.390.0870.04718.99
5.4.380.0070.05719.30
5.4.370.0330.04719.18
5.4.360.0630.05019.22
5.4.350.0870.04319.13
5.4.340.0050.03511.97
5.4.320.0100.03312.45
5.4.310.0060.03812.45
5.4.300.0080.03412.45
5.4.290.0060.03912.45
5.4.280.0050.03812.34
5.4.270.0070.04312.34
5.4.260.0100.04112.34
5.4.250.0080.04412.35
5.4.240.0070.04312.35
5.4.230.0030.04512.34
5.4.220.0070.03712.34
5.4.210.0040.04512.34
5.4.200.0070.04012.34
5.4.190.0070.05012.33
5.4.180.0100.03812.33
5.4.170.0050.03912.35
5.4.160.0070.03612.34
5.4.150.0050.03812.34
5.4.140.0040.04112.02
5.4.130.0030.03812.01
5.4.120.0050.03611.97
5.4.110.0040.03711.96
5.4.100.0110.03111.96
5.4.90.0030.03911.96
5.4.80.0100.03311.96
5.4.70.0050.03711.96
5.4.60.0030.03811.96
5.4.50.0080.03311.96
5.4.40.0090.03911.95
5.4.30.0050.03911.95
5.4.20.0050.03511.95
5.4.10.0110.02911.95
5.4.00.0040.03711.43
5.3.290.0070.04512.80
5.3.280.0040.03912.71
5.3.270.0050.03912.72
5.3.260.0120.03212.72
5.3.250.0110.03412.72
5.3.240.0060.03712.72
5.3.230.0060.03712.71
5.3.220.0040.03812.68
5.3.210.0080.03812.68
5.3.200.0070.04112.68
5.3.190.0080.03812.68
5.3.180.0050.03912.68
5.3.170.0060.03712.67
5.3.160.0070.03712.68
5.3.150.0070.03712.67
5.3.140.0060.03712.66
5.3.130.0040.04112.66
5.3.120.0060.03812.65
5.3.110.0070.03812.65
5.3.100.0060.03712.12
5.3.90.0060.03612.08
5.3.80.0090.04212.08
5.3.70.0050.05012.08
5.3.60.0080.03912.07
5.3.50.0070.04312.00
5.3.40.0130.04412.00
5.3.30.0070.03411.94
5.3.20.0050.03511.72
5.3.10.0090.03211.69
5.3.00.0060.03511.67
5.2.170.0070.0369.18
5.2.160.0060.0279.18
5.2.150.0040.0309.18
5.2.140.0050.0309.18
5.2.130.0070.0279.13
5.2.120.0040.0309.13
5.2.110.0030.0349.14
5.2.100.0030.0319.14
5.2.90.0040.0309.13
5.2.80.0080.0389.13
5.2.70.0030.0319.13
5.2.60.0030.0319.09
5.2.50.0040.0309.05
5.2.40.0060.0279.04
5.2.30.0040.0299.01
5.2.20.0060.0279.00
5.2.10.0020.0318.91
5.2.00.0060.0298.77
5.1.60.0050.0238.06
5.1.50.0060.0228.05
5.1.40.0040.0258.04
5.1.30.0060.0258.39
5.1.20.0050.0268.41
5.1.10.0040.0268.13
5.1.00.0040.0258.14
5.0.50.0040.0206.61
5.0.40.0050.0176.47
5.0.30.0020.0326.29
5.0.20.0040.0186.25
5.0.10.0030.0206.23
5.0.00.0040.0336.23
4.4.90.0040.0174.78
4.4.80.0020.0164.75
4.4.70.0010.0174.75
4.4.60.0020.0174.76
4.4.50.0050.0174.77
4.4.40.0040.0244.71
4.4.30.0040.0144.76
4.4.20.0050.0134.84
4.4.10.0030.0154.85
4.4.00.0010.0264.76
4.3.110.0050.0144.67
4.3.100.0010.0164.67
4.3.90.0020.0154.64
4.3.80.0040.0234.59
4.3.70.0010.0164.63
4.3.60.0010.0164.63
4.3.50.0020.0164.63
4.3.40.0010.0264.54
4.3.30.0020.0163.27
4.3.20.0030.0153.25
4.3.10.0030.0143.21
4.3.00.0070.0177.07

preferences:
35.91 ms | 401 KiB | 5 Q