3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(); $a[] = 1; $a[] = 2; $a[] = 3; echo substr('233', 1, 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)
8.3.70.0180.00316.38
8.3.60.0070.01116.50
8.3.50.0130.00518.06
8.3.40.0040.01218.80
8.3.30.0150.00018.54
8.3.20.0070.00018.70
8.3.10.0050.00318.52
8.3.00.0080.00019.38
8.2.180.0060.01016.38
8.2.170.0100.00322.96
8.2.160.0130.00718.96
8.2.150.0000.00924.18
8.2.140.0040.00424.66
8.2.130.0000.00826.16
8.2.120.0080.00019.66
8.2.110.0000.00922.24
8.2.100.0000.01117.84
8.2.90.0000.00817.75
8.2.80.0080.00018.77
8.2.70.0040.00418.03
8.2.60.0060.00318.16
8.2.50.0000.00818.10
8.2.40.0000.00919.43
8.2.30.0030.00619.24
8.2.20.0060.00317.61
8.2.10.0040.00419.46
8.2.00.0000.00917.45
8.1.280.0100.00325.92
8.1.270.0070.00023.99
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0070.00420.50
8.1.230.0080.00320.90
8.1.220.0000.00917.74
8.1.210.0080.00018.77
8.1.200.0090.00217.35
8.1.190.0020.00817.00
8.1.180.0000.00819.08
8.1.170.0040.00418.55
8.1.160.0040.00419.00
8.1.150.0070.00018.56
8.1.140.0070.00017.38
8.1.130.0050.00317.45
8.1.120.0000.00717.40
8.1.110.0000.00817.39
8.1.100.0000.00717.26
8.1.90.0000.00817.40
8.1.80.0030.00317.38
8.1.70.0070.00017.27
8.1.60.0030.00517.48
8.1.50.0040.00417.41
8.1.40.0070.00017.48
8.1.30.0030.00617.56
8.1.20.0060.00317.43
8.1.10.0080.00017.37
8.1.00.0040.00417.49
8.0.300.0020.00518.77
8.0.290.0070.00016.75
8.0.280.0000.00718.32
8.0.270.0030.00317.30
8.0.260.0070.00016.80
8.0.250.0030.00516.98
8.0.240.0000.00716.91
8.0.230.0070.00016.78
8.0.220.0030.00616.80
8.0.210.0040.00416.81
8.0.200.0040.00416.87
8.0.190.0000.00816.74
8.0.180.0040.00316.74
8.0.170.0040.00416.82
8.0.160.0030.00316.81
8.0.150.0070.00016.79
8.0.140.0040.00416.80
8.0.130.0030.00313.28
8.0.120.0030.00616.70
8.0.110.0060.00316.87
8.0.100.0070.00016.69
8.0.90.0070.00016.81
8.0.80.0130.00316.80
8.0.70.0040.00416.64
8.0.60.0080.00016.78
8.0.50.0040.00416.71
8.0.30.0200.00017.11
8.0.20.0100.00917.05
8.0.10.0040.00416.96
8.0.00.0070.01216.70
7.4.330.0030.00312.90
7.4.320.0000.00616.50
7.4.300.0000.00616.48
7.4.290.0030.00316.41
7.4.280.0060.00316.28
7.4.270.0040.00416.53
7.4.260.0030.00313.23
7.4.250.0040.00416.51
7.4.240.0030.00316.44
7.4.230.0060.00316.17
7.4.220.0100.00716.41
7.4.210.0120.00916.55
7.4.200.0000.00716.23
7.4.190.0040.00416.61
7.4.160.0090.00916.58
7.4.150.0100.00916.30
7.4.140.0160.01017.86
7.4.130.0120.00616.61
7.4.120.0140.00816.29
7.4.110.0140.00316.44
7.4.100.0110.00616.52
7.4.90.0160.00716.32
7.4.80.0060.01619.39
7.4.70.0130.00316.47
7.4.60.0130.00416.55
7.4.50.0060.00316.39
7.4.40.0070.00516.46
7.4.30.0130.00316.56
7.4.00.0030.01214.88
7.3.330.0000.00613.12
7.3.320.0000.00513.00
7.3.310.0030.00316.12
7.3.300.0000.00716.19
7.3.290.0100.00616.20
7.3.280.0030.01216.11
7.3.270.0090.01216.26
7.3.260.0100.01016.21
7.3.240.0130.00316.10
7.3.230.0060.01216.28
7.3.210.0130.00316.08
7.3.200.0100.00716.34
7.3.190.0090.00616.59
7.3.180.0060.00916.11
7.3.170.0080.00816.45
7.3.160.0040.01216.12
7.3.120.0040.00814.49
7.2.330.0080.01116.55
7.2.320.0070.01416.65
7.2.310.0140.00816.67
7.2.300.0100.00716.64
7.2.290.0060.01216.74
7.1.200.0090.00615.41
7.1.70.0110.00416.77
7.1.60.0070.01319.21
7.1.50.0190.00934.40
7.1.00.0030.04022.36
7.0.200.0100.00316.83
7.0.140.0000.07322.00
7.0.120.0030.07322.13
7.0.60.0030.07320.00
7.0.50.0030.06017.79
7.0.40.0070.04020.24
7.0.30.0230.05720.09
7.0.20.0370.06320.00
7.0.10.0300.07720.16
7.0.00.0130.03319.99
5.6.280.0100.06320.89
5.6.210.0030.04020.70
5.6.200.0030.06018.23
5.6.190.0200.07720.77
5.6.180.0230.04020.32
5.6.170.0330.08020.48
5.6.160.0000.04720.41
5.6.150.0000.07718.18
5.6.140.0030.08318.17
5.6.130.0070.04018.14
5.6.120.0100.08021.01
5.6.110.0170.05721.11
5.6.100.0130.07721.03
5.6.90.0070.05321.11
5.6.80.0070.08320.47
5.6.70.4530.03720.46
5.5.350.0100.08320.34
5.5.340.0100.07318.01
5.5.330.0100.06720.43
5.5.320.0300.05720.20
5.5.310.0130.04720.27
5.5.300.0070.03717.98
5.5.290.0130.07017.91
5.5.280.0100.08020.76
5.5.270.0200.06320.86
5.5.260.0100.08320.87
5.5.250.0100.05020.58
5.5.240.0070.06020.03
5.4.450.0370.07019.41
5.4.440.4300.04719.54
5.4.430.0100.05319.67
5.4.420.0200.04719.43
5.4.410.0100.05319.56
5.4.400.0100.05319.15
5.4.390.0100.05018.99
5.4.380.0270.05318.72
5.4.370.0170.03318.57
5.4.360.0000.06018.56
5.4.350.0100.04311.97
5.4.340.0050.04511.96
5.4.320.0060.04212.46
5.4.310.0060.04212.45
5.4.300.0100.05412.45
5.4.290.0100.05012.45
5.4.280.0100.06912.34
5.4.270.0180.08312.34
5.4.260.0160.06112.35
5.4.250.0090.05412.35
5.4.240.0100.05312.34
5.4.230.0100.05512.34
5.4.220.0100.04912.34
5.4.210.0090.04612.34
5.4.200.0070.05512.34
5.4.190.0080.05612.33
5.4.180.0060.04312.33
5.4.170.0080.04212.35
5.4.160.0080.04812.34
5.4.150.0110.05512.34
5.4.140.0090.05412.02
5.4.130.0100.04612.01
5.4.120.0070.04711.97
5.4.110.0080.05511.96
5.4.100.0090.05111.96
5.4.90.0100.05011.96
5.4.80.0080.04911.96
5.4.70.0100.04711.96
5.4.60.0080.05011.96
5.4.50.0060.05711.96
5.4.40.0150.05711.95
5.4.30.0090.04711.95
5.4.20.0090.04411.95
5.4.10.0070.04811.95
5.4.00.0080.04611.44
5.3.290.0040.04512.80
5.3.280.0100.05512.70
5.3.270.0090.05912.72
5.3.260.0130.05112.72
5.3.250.0100.04312.72
5.3.240.0110.04212.72
5.3.230.0110.05412.71
5.3.220.0110.04612.68
5.3.210.0090.04412.68
5.3.200.0090.04612.68
5.3.190.0110.04712.68
5.3.180.0060.04012.67
5.3.170.0080.03612.67
5.3.160.0080.04212.67
5.3.150.0070.05212.67
5.3.140.0100.05112.66
5.3.130.0100.04812.66
5.3.120.0080.04612.66
5.3.110.0100.04612.66
5.3.100.0080.04812.12
5.3.90.0070.03712.08
5.3.80.0070.04212.08
5.3.70.0070.03912.08
5.3.60.0100.03912.06
5.3.50.0060.05512.00
5.3.40.0080.04212.00

preferences:
44.85 ms | 401 KiB | 5 Q