3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(substr('test', 1));

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)
8.3.40.0070.01418.62
8.3.30.0120.00918.62
8.3.20.0060.00320.26
8.3.10.0030.00621.02
8.3.00.0040.00423.48
8.2.170.0070.00722.96
8.2.160.0000.01320.38
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0080.00021.03
8.2.110.0040.00421.11
8.2.100.0070.00417.59
8.2.90.0060.00318.97
8.2.80.0050.00317.97
8.2.70.0030.00617.50
8.2.60.0000.00917.80
8.2.50.0040.00418.10
8.2.40.0080.00018.22
8.2.30.0000.00719.35
8.2.20.0040.00417.44
8.2.10.0000.00717.48
8.2.00.0040.00417.43
8.1.270.0110.00323.99
8.1.260.0140.00426.35
8.1.250.0000.00828.09
8.1.240.0090.00021.12
8.1.230.0110.00017.64
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0030.00617.22
8.1.190.0030.00617.10
8.1.180.0080.00018.10
8.1.170.0000.00918.66
8.1.160.0000.00718.82
8.1.150.0070.00018.50
8.1.140.0050.00317.27
8.1.130.0000.00717.87
8.1.120.0050.00217.32
8.1.110.0000.00717.29
8.1.100.0050.00317.32
8.1.90.0030.00417.38
8.1.80.0000.00717.25
8.1.70.0030.00317.23
8.1.60.0060.00317.46
8.1.50.0040.00417.34
8.1.40.0030.00517.29
8.1.30.0080.00017.43
8.1.20.0000.00717.50
8.1.10.0000.00717.41
8.1.00.0040.00417.35
8.0.300.0060.00318.77
8.0.290.0080.00016.63
8.0.280.0040.00418.30
8.0.270.0000.00717.03
8.0.260.0040.00416.60
8.0.250.0000.00716.87
8.0.240.0030.00616.82
8.0.230.0030.00316.78
8.0.220.0030.00316.69
8.0.210.0000.00616.67
8.0.200.0090.00016.80
8.0.190.0080.00016.84
8.0.180.0030.00716.79
8.0.170.0070.00016.82
8.0.160.0080.00016.64
8.0.150.0000.00716.71
8.0.140.0040.00416.74
8.0.130.0000.00613.18
8.0.120.0040.00416.63
8.0.110.0080.00016.62
8.0.100.0030.00516.74
8.0.90.0030.00516.71
8.0.80.0040.01216.76
8.0.70.0030.00616.63
8.0.60.0040.00416.67
8.0.50.0030.00316.83
8.0.30.0140.00816.87
8.0.20.0070.01217.40
8.0.10.0040.00416.82
8.0.00.0100.01116.63
7.4.330.0030.00316.78
7.4.320.0060.00016.48
7.4.300.0060.00016.39
7.4.290.0000.00616.47
7.4.280.0000.00716.39
7.4.270.0000.00716.30
7.4.260.0000.00613.25
7.4.250.0000.00716.29
7.4.240.0000.00716.38
7.4.230.0070.00016.35
7.4.220.0090.00916.24
7.4.210.0040.01116.47
7.4.200.0050.00316.45
7.4.190.0000.00716.31
7.4.160.0130.01016.33
7.4.150.0070.01417.40
7.4.140.0090.01117.86
7.4.130.0130.00316.41
7.4.120.0100.00916.40
7.4.110.0140.00716.45
7.4.100.0070.01316.41
7.4.90.0100.00716.30
7.4.80.0110.01119.39
7.4.70.0000.01716.26
7.4.60.0090.00916.42
7.4.50.0050.00316.10
7.4.40.0000.01722.77
7.4.30.0030.01516.17
7.4.00.0080.00514.91
7.3.330.0000.00513.01
7.3.320.0000.00612.99
7.3.310.0050.00216.21
7.3.300.0030.00316.17
7.3.290.0000.01616.13
7.3.280.0110.00916.15
7.3.270.0100.00717.40
7.3.260.0120.01118.24
7.3.250.0060.01316.22
7.3.240.0100.00716.17
7.3.230.0150.00316.39
7.3.210.0120.00416.05
7.3.200.0110.00919.39
7.3.190.0130.00816.38
7.3.180.0090.00616.07
7.3.170.0120.00416.27
7.3.160.0070.01016.16
7.3.120.0070.00714.59
7.3.110.0040.01214.72
7.3.100.0080.00314.52
7.3.90.0090.00614.42
7.3.80.0040.01114.54
7.3.70.0000.00914.58
7.3.60.0030.01214.52
7.3.50.0060.00614.43
7.3.40.0100.00614.72
7.3.30.0060.00914.55
7.3.20.0090.00616.31
7.3.10.0100.00315.97
7.3.00.0070.00516.11
7.2.330.0080.00816.51
7.2.320.0130.00916.26
7.2.310.0060.01116.30
7.2.300.0140.00316.46
7.2.290.0100.00616.21
7.2.240.0070.00714.64
7.2.230.0040.00714.63
7.2.220.0030.00614.61
7.2.210.0040.00814.53
7.2.200.0060.00914.69
7.2.190.0070.00414.69
7.2.180.0040.00714.65
7.2.170.0030.00614.40
7.2.160.0040.00714.89
7.2.150.0090.00916.50
7.2.140.0100.00616.54
7.2.130.0100.00516.30
7.2.120.0070.01216.27
7.2.110.0120.00516.26
7.2.100.0060.00616.31
7.2.90.0090.00816.35
7.2.80.0090.00316.47
7.2.70.0090.00716.52
7.2.60.0110.00516.38
7.2.50.0090.00716.62
7.2.40.0100.00516.51
7.2.30.0050.01116.78
7.2.20.0100.00516.45
7.2.10.0030.01116.66
7.2.00.0110.00717.38
7.1.330.0000.01015.38
7.1.320.0100.00315.80
7.1.310.0040.01115.72
7.1.300.0040.00815.32
7.1.290.0100.00715.57
7.1.280.0030.00615.62
7.1.270.0140.00015.61
7.1.260.0030.01015.34
7.1.250.0090.00515.34
7.1.100.0040.00817.97
7.1.70.0060.00616.98
7.1.60.0030.00717.30
7.1.50.0030.02116.57
7.1.00.0030.05022.35
7.0.200.0000.01516.41
7.0.140.0070.06322.18
7.0.100.0170.03719.91
7.0.90.0130.03720.01
7.0.80.0130.03019.86
7.0.70.0100.04019.88
7.0.60.0030.04320.06
7.0.50.0170.07020.14
7.0.40.0100.07719.94
7.0.30.0070.06020.13
7.0.20.0000.04720.04
7.0.10.0100.06320.03
7.0.00.0100.05720.03
5.6.280.0030.07320.89
5.6.250.0130.03720.62
5.6.240.0070.04320.66
5.6.230.0170.06320.61
5.6.220.0070.04020.57
5.6.210.0030.04020.43
5.6.200.0070.07321.01
5.6.190.0170.06321.06
5.6.180.0000.04721.07
5.6.170.0030.04721.00
5.6.160.0070.09021.04
5.6.150.0000.07021.09
5.6.140.0130.04021.02
5.6.130.0070.08721.05
5.6.120.0070.04321.06
5.6.110.0100.04321.05
5.6.100.0070.04721.01
5.6.90.0070.06020.90
5.6.80.0130.07720.54
5.6.70.0030.03720.49
5.6.60.0200.05320.36
5.6.50.0230.04020.37
5.6.40.0100.07320.39
5.6.30.0030.08020.34
5.6.20.0100.05720.46
5.6.10.0130.07720.33
5.6.00.0130.07020.34
5.5.380.0070.04020.35
5.5.370.0030.03720.50
5.5.360.0030.05020.33
5.5.350.0200.04720.41
5.5.340.0170.07720.78
5.5.330.0070.08320.88
5.5.320.0070.04720.83
5.5.310.0100.07020.84
5.5.300.0030.04020.81
5.5.290.0100.03720.88
5.5.280.0100.06020.75
5.5.270.0000.04320.89
5.5.260.0170.08020.87
5.5.250.0000.07020.65
5.5.240.0030.05720.14
5.5.230.0070.07320.11
5.5.220.0200.03720.24
5.5.210.0230.06720.27
5.5.200.0070.04020.16
5.5.190.0130.06720.26
5.5.180.0100.04720.16
5.5.160.0300.06320.14
5.5.150.0070.05020.09
5.5.140.0070.04020.11
5.5.130.0070.04020.10
5.5.120.0130.03319.97
5.5.110.0030.03720.09
5.5.100.0100.03320.04
5.5.90.0000.03720.03
5.5.80.0100.03320.05
5.5.70.0100.03720.04
5.5.60.0130.03320.03
5.5.50.0000.05020.01
5.5.40.0100.03319.94
5.5.30.0030.03320.13
5.5.20.0030.04020.07
5.5.10.0170.03020.01
5.5.00.0070.04320.10
5.4.450.0070.07319.29
5.4.440.0070.03719.40
5.4.430.0070.04019.46
5.4.420.0030.04019.35
5.4.410.0030.05719.27
5.4.400.0000.07019.03
5.4.390.0000.05719.16
5.4.380.0130.06719.08
5.4.370.0100.06719.04
5.4.360.0000.07719.11
5.4.350.0130.06719.05
5.4.340.0170.08018.94
5.4.320.0070.07719.03
5.4.310.0100.04018.83
5.4.300.0100.04018.78
5.4.290.0070.04318.78
5.4.280.0070.03719.20
5.4.270.0130.02719.05
5.4.260.0030.04719.03
5.4.250.0070.02718.95
5.4.240.0070.04719.09
5.4.230.0030.05019.10
5.4.220.0000.04319.14
5.4.210.0070.03718.77
5.4.200.0030.04718.93
5.4.190.0070.03718.86
5.4.180.0030.04018.87
5.4.170.0070.04019.04
5.4.160.0030.04318.94
5.4.150.0070.03719.07
5.4.140.0130.05716.21
5.4.130.0100.07016.30
5.4.120.0030.04316.20
5.4.110.0130.06716.38
5.4.100.0070.04716.39
5.4.90.0030.06716.36
5.4.80.0100.07016.19
5.4.70.0000.07016.25
5.4.60.0070.06316.16
5.4.50.0070.05016.29
5.4.40.0070.04016.41
5.4.30.0100.05016.33
5.4.20.0030.03716.23
5.4.10.0030.04716.27
5.4.00.0070.05015.76
5.3.290.0130.05314.48
5.3.280.0030.04314.50
5.3.270.0000.04014.45
5.3.260.0030.03714.59
5.3.250.0000.04014.41
5.3.240.0000.04714.46
5.3.230.0000.04714.45
5.3.220.0030.07314.56
5.3.210.0030.06314.41
5.3.200.0000.06314.56
5.3.190.0030.08314.50
5.3.180.0030.06714.53
5.3.170.0030.08014.56
5.3.160.0070.06314.38
5.3.150.0170.05714.39
5.3.140.0070.07314.54
5.3.130.0030.04314.50
5.3.120.0030.04314.36
5.3.110.0100.08714.39
5.3.100.0000.05014.02
5.3.90.0100.06013.87
5.3.80.0030.07713.87
5.3.70.0100.07013.87
5.3.60.0100.05713.98
5.3.50.0130.06713.71
5.3.40.0030.07013.79
5.3.30.0130.05313.88
5.3.20.0100.05713.55
5.3.10.0130.06713.60
5.3.00.0170.04313.48
5.2.170.0070.06310.96
5.2.160.0030.05711.13
5.2.150.0130.06010.98
5.2.140.0100.05311.14
5.2.130.0100.05711.05
5.2.120.0100.06011.09
5.2.110.0030.05711.11
5.2.100.0070.04310.89
5.2.90.0070.06011.02
5.2.80.0000.03311.05
5.2.70.0070.05011.09
5.2.60.0030.03011.00
5.2.50.0070.05710.88
5.2.40.0000.03711.06
5.2.30.0100.04310.76
5.2.20.0070.03010.96
5.2.10.0070.04010.93
5.2.00.0100.05310.77
5.1.60.0030.0509.83
5.1.50.0100.0539.82
5.1.40.0030.02310.00
5.1.30.0100.04010.36
5.1.20.0070.05010.26
5.1.10.0000.03010.13
5.1.00.0070.02310.13
5.0.50.0030.0238.59
5.0.40.0100.0208.39
5.0.30.0000.0738.21
5.0.20.0070.0438.03
5.0.10.0030.0278.19
5.0.00.0000.0438.21
4.4.90.0000.0237.93
4.4.80.0000.0207.93
4.4.70.0000.0177.93
4.4.60.0030.0277.93
4.4.50.0000.0237.93
4.4.40.0100.0407.93
4.4.30.0030.0377.93
4.4.20.0030.0277.93
4.4.10.0000.0377.93
4.4.00.0000.0577.93
4.3.110.0030.0307.93
4.3.100.0030.0237.93
4.3.90.0100.0177.93
4.3.80.0030.0237.93
4.3.70.0030.0137.93
4.3.60.0000.0337.93
4.3.50.0070.0277.93
4.3.40.0000.0577.93
4.3.30.0100.0277.93
4.3.20.0000.0407.93
4.3.10.0000.0307.93
4.3.00.0000.0337.93

preferences:
46.95 ms | 400 KiB | 5 Q