3v4l.org

run code in 300+ PHP versions simultaneously
<?php function validate_utf8($input) { return (bool)preg_match('//u', $input); }

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)
8.3.70.0090.00616.50
8.3.60.0170.00318.43
8.3.50.0090.01121.94
8.3.40.0080.00818.59
8.3.30.0070.01019.07
8.3.20.0050.00220.08
8.3.10.0090.00021.87
8.3.00.0050.00322.43
8.2.190.0040.01216.58
8.2.180.0150.00616.50
8.2.170.0100.00322.96
8.2.160.0100.01020.86
8.2.150.0090.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.01219.23
8.2.110.0050.00522.32
8.2.100.0150.00417.47
8.2.90.0030.00618.94
8.2.80.0080.00517.97
8.2.70.0030.00617.50
8.2.60.0080.00017.80
8.2.50.0080.00018.07
8.2.40.0040.00718.09
8.2.30.0000.00717.80
8.2.20.0040.00417.39
8.2.10.0040.00417.42
8.2.00.0000.00817.41
8.1.280.0100.00725.92
8.1.270.0070.00022.05
8.1.260.0040.00426.35
8.1.250.0060.00328.09
8.1.240.0040.00423.98
8.1.230.0040.00819.08
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0030.00617.10
8.1.190.0060.00317.18
8.1.180.0080.00018.10
8.1.170.0000.00818.59
8.1.160.0030.00621.94
8.1.150.0030.00618.44
8.1.140.0070.00017.38
8.1.130.0040.00417.80
8.1.120.0000.00717.35
8.1.110.0000.01017.30
8.1.100.0000.00717.33
8.1.90.0000.00717.27
8.1.80.0050.00317.25
8.1.70.0070.00017.30
8.1.60.0030.00517.33
8.1.50.0030.00517.28
8.1.40.0080.00017.33
8.1.30.0080.00017.53
8.1.20.0080.00017.52
8.1.10.0040.00417.26
8.1.00.0040.00417.24
8.0.300.0040.00418.77
8.0.290.0030.00316.93
8.0.280.0070.00018.30
8.0.270.0000.00717.11
8.0.260.0000.00716.68
8.0.250.0000.00716.79
8.0.240.0040.00416.73
8.0.230.0030.00416.86
8.0.220.0030.00316.78
8.0.210.0040.00416.71
8.0.200.0060.00016.76
8.0.190.0040.00416.85
8.0.180.0000.00716.62
8.0.170.0000.00816.78
8.0.160.0040.00416.80
8.0.150.0040.00416.79
8.0.140.0040.00416.65
8.0.130.0090.00013.23
8.0.120.0060.00316.60
8.0.110.0050.00216.66
8.0.100.0000.00816.70
8.0.90.0040.00416.69
8.0.80.0130.00616.74
8.0.70.0000.00716.71
8.0.60.0040.00416.59
8.0.50.0000.00816.75
8.0.30.0130.00516.68
8.0.20.0140.00517.40
8.0.10.0050.00216.94
8.0.00.0080.01016.55
7.4.330.0000.00515.00
7.4.320.0000.00616.49
7.4.300.0000.00716.28
7.4.290.0030.00316.50
7.4.280.0050.00316.50
7.4.270.0070.00016.49
7.4.260.0000.00816.36
7.4.250.0030.00316.34
7.4.240.0020.00516.38
7.4.230.0070.00016.36
7.4.220.0070.01716.30
7.4.210.0070.00916.42
7.4.200.0040.00416.44
7.4.190.0000.00716.55
7.4.160.0150.00316.46
7.4.150.0060.01217.40
7.4.140.0070.01217.86
7.4.130.0110.00716.28
7.4.120.0100.00716.25
7.4.110.0090.00916.11
7.4.100.0100.00716.31
7.4.90.0110.00716.24
7.4.80.0030.01316.46
7.4.70.0030.01316.27
7.4.60.0080.00816.18
7.4.50.0000.00815.97
7.4.40.0060.01022.77
7.4.30.0110.00716.39
7.4.00.0100.00714.63
7.3.330.0000.00513.23
7.3.320.0000.00613.16
7.3.310.0050.00316.21
7.3.300.0000.00816.18
7.3.290.0070.00716.24
7.3.280.0080.00816.12
7.3.270.0070.01117.40
7.3.260.0060.01216.52
7.3.250.0100.00716.32
7.3.240.0130.00316.30
7.3.230.0140.00316.39
7.3.210.0130.01016.35
7.3.200.0100.01019.39
7.3.190.0100.01316.44
7.3.180.0070.01016.16
7.3.170.0150.00016.27
7.3.160.0090.00616.36
7.3.120.0130.00314.95
7.3.10.0080.00416.57
7.3.00.0030.00716.56
7.2.330.0030.01316.14
7.2.320.0030.01516.54
7.2.310.0070.01416.23
7.2.300.0120.00916.49
7.2.290.0180.00416.39
7.2.130.0060.00916.75
7.2.120.0000.01316.71
7.2.110.0030.00616.70
7.2.100.0000.01216.65
7.2.90.0060.00616.77
7.2.80.0030.00916.61
7.2.70.0080.00516.80
7.2.60.0090.00716.71
7.2.50.0030.00616.79
7.2.40.0000.01216.84
7.2.30.0090.00016.67
7.2.20.0060.00616.68
7.2.10.0090.00316.89
7.2.00.0030.00617.91
7.1.250.0090.00315.65
7.1.200.0030.00515.49
7.1.100.0030.01017.86
7.1.70.0030.00616.89
7.1.60.0030.02019.82
7.1.50.0100.01316.42
7.1.00.0070.07022.31
7.0.200.0130.00316.32
7.0.140.0030.07322.12
7.0.100.0070.06019.89
7.0.90.0230.07719.92
7.0.80.0230.07319.88
7.0.70.0270.08320.14
7.0.60.0070.04319.95
7.0.50.0100.06720.34
7.0.40.0100.07320.14
7.0.30.0100.05320.14
7.0.20.0200.06020.00
7.0.10.0030.07720.07
7.0.00.0070.09020.16
5.6.280.0000.07321.11
5.6.250.0170.06320.67
5.6.240.0130.06720.70
5.6.230.0070.06720.59
5.6.220.0130.07320.73
5.6.210.0000.07020.64
5.6.200.0070.09021.07
5.6.190.0030.04721.08
5.6.180.0100.05021.14
5.6.170.0130.08021.10
5.6.160.0030.07020.96
5.6.150.0070.08021.00
5.6.140.0100.08021.14
5.6.130.0100.07321.02
5.6.120.0230.06720.94
5.6.110.0170.08020.95
5.6.100.0070.06721.07
5.6.90.0030.05321.00
5.6.80.0030.04720.41
5.6.70.0070.05020.33
5.6.60.0030.05020.45
5.6.50.0070.07320.40
5.6.40.0100.07720.49
5.6.30.0170.06020.54
5.6.20.0100.07020.49
5.6.10.0100.07720.39
5.6.00.0100.04720.38
5.5.380.0070.04320.39
5.5.370.0000.04720.36
5.5.360.0070.06320.41
5.5.350.0000.06020.33
5.5.340.0070.04720.91
5.5.330.0100.07720.80
5.5.320.0000.05020.92
5.5.310.0030.07020.80
5.5.300.0070.07020.88
5.5.290.0030.04320.64
5.5.280.0070.05020.80
5.5.270.0000.05720.87
5.5.260.0030.06020.89
5.5.250.0100.07320.59
5.5.240.0030.04020.19
5.5.230.0130.07720.18
5.5.220.0100.07020.24
5.5.210.0030.09020.18
5.5.200.0100.06720.18
5.5.190.0070.07320.24
5.5.180.0030.06720.22
5.5.160.0170.06720.20
5.5.150.0100.07720.12
5.5.140.0130.07320.18
5.5.130.0030.08020.25
5.5.120.0030.04320.24
5.5.110.0100.06720.23
5.5.100.0000.08019.98
5.5.90.0000.05720.09
5.5.80.0100.04020.07
5.5.70.0000.07020.09
5.5.60.0030.04319.91
5.5.50.0070.05020.08
5.5.40.0070.04320.02
5.5.30.0030.04020.05
5.5.20.0130.04020.11
5.5.10.0070.04020.04
5.5.00.0070.03720.05
5.4.450.0030.07319.18
5.4.440.0100.05719.54
5.4.430.0070.08719.45
5.4.420.0030.06719.48
5.4.410.0070.07719.24
5.4.400.0070.04019.03
5.4.390.0000.08019.13
5.4.380.0030.04319.09
5.4.370.0030.08319.12
5.4.360.0170.05718.85
5.4.350.0070.09019.05
5.4.340.0100.07319.02
5.4.320.0100.07018.95
5.4.310.0130.08019.08
5.4.300.0130.06719.13
5.4.290.0100.06319.05
5.4.280.0030.06319.13
5.4.270.0070.04019.04
5.4.260.0100.07018.94
5.4.250.0100.04019.15
5.4.240.0100.06018.87
5.4.230.0130.07319.19
5.4.220.0100.03318.87
5.4.210.0070.04019.03
5.4.200.0070.07019.16
5.4.190.0070.03719.13
5.4.180.0100.03319.02
5.4.170.0000.04018.86
5.4.160.0000.04019.11
5.4.150.0170.02719.16
5.4.140.0030.03016.41
5.4.130.0030.03716.42
5.4.120.0030.03316.41
5.4.110.0100.03016.50
5.4.100.0100.02316.56
5.4.90.0000.04016.48
5.4.80.0030.03316.47
5.4.70.0030.03316.35
5.4.60.0070.03016.37
5.4.50.0100.02716.41
5.4.40.0030.04016.50
5.4.30.0070.06716.44
5.4.20.0000.04016.43
5.4.10.0070.03316.47
5.4.00.0070.03315.86
5.3.290.0100.07714.74
5.3.280.0030.05314.57
5.3.270.0030.03714.55
5.3.260.0000.04014.66
5.3.250.0200.03014.66
5.3.240.0070.03314.54
5.3.230.0070.04014.49
5.3.220.0070.02714.54
5.3.210.0070.03714.50
5.3.200.0130.02014.58
5.3.190.0000.04014.56
5.3.180.0000.03714.58
5.3.170.0070.03014.53
5.3.160.0030.03314.52
5.3.150.0030.04314.63
5.3.140.0000.07314.61
5.3.130.0000.04314.48
5.3.120.0130.05014.66
5.3.110.0070.03314.57
5.3.100.0000.04014.17
5.3.90.0070.03313.97
5.3.80.0070.03314.05
5.3.70.0070.03714.07
5.3.60.0000.04014.12
5.3.50.0030.03713.96
5.3.40.0030.05313.84
5.3.30.0000.04313.98
5.3.20.0030.03313.61
5.3.10.0030.03313.69
5.3.00.0000.03713.54
5.2.170.0030.03011.13
5.2.160.0000.03011.27
5.2.150.0000.03011.20
5.2.140.0000.03011.21
5.2.130.0070.03011.18
5.2.120.0000.03011.01
5.2.110.0030.03010.98
5.2.100.0000.03311.18
5.2.90.0000.03010.95
5.2.80.0000.03011.18
5.2.70.0000.03011.15
5.2.60.0000.03010.93
5.2.50.0000.03010.94
5.2.40.0030.03010.97
5.2.30.0000.03311.03
5.2.20.0000.02711.02
5.2.10.0070.02310.90
5.2.00.0070.02310.72
5.1.60.0100.01710.09
5.1.50.0030.02010.00
5.1.40.0030.0239.96
5.1.30.0000.02710.46
5.1.20.0030.02310.41
5.1.10.0100.02310.02
5.1.00.0000.02710.11
5.0.50.0000.0239.52
5.0.40.0030.0179.52
5.0.30.0030.0279.52
5.0.20.0000.0309.52
5.0.10.0000.0479.52
5.0.00.0030.0639.52
4.4.90.0000.0179.52
4.4.80.0000.0179.52
4.4.70.0000.0179.52
4.4.60.0000.0179.52
4.4.50.0000.0209.52
4.4.40.0000.0439.52
4.4.30.0000.0179.52
4.4.20.0000.0179.52
4.4.10.0000.0179.52
4.4.00.0030.0239.52
4.3.110.0000.0279.52
4.3.100.0000.0379.52
4.3.90.0030.0339.52
4.3.80.0100.0479.52
4.3.70.0000.0279.52
4.3.60.0030.0179.52
4.3.50.0070.0139.52
4.3.40.0070.0239.52
4.3.30.0000.0279.52
4.3.20.0070.0309.52
4.3.10.0030.0279.52
4.3.00.0030.0279.52

preferences:
38.89 ms | 401 KiB | 5 Q