3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = 0; $a = substr('', 0, 10); var_dump($a); var_dump(gettype('0'));

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)
8.3.60.0120.00316.63
8.3.50.0110.00416.13
8.3.40.0060.00918.57
8.3.30.0070.00718.60
8.3.20.0020.00520.20
8.3.10.0080.00021.78
8.3.00.0080.00019.66
8.2.180.0060.01218.16
8.2.170.0040.01122.96
8.2.160.0060.01320.22
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0090.00026.16
8.2.120.0000.00817.38
8.2.110.0070.00322.25
8.2.100.0110.00017.72
8.2.90.0040.00417.75
8.2.80.0050.00317.97
8.2.70.0030.00617.50
8.2.60.0000.00817.80
8.2.50.0040.00718.07
8.2.40.0040.00421.11
8.2.30.0040.00419.84
8.2.20.0000.00817.72
8.2.10.0020.00518.11
8.2.00.0000.00717.96
8.1.280.0100.01025.92
8.1.270.0080.00020.08
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0060.00320.93
8.1.230.0080.00320.94
8.1.220.0000.00917.76
8.1.210.0040.00418.77
8.1.200.0040.00417.35
8.1.190.0000.00817.00
8.1.180.0040.00418.10
8.1.170.0040.00418.46
8.1.160.0030.00521.81
8.1.150.0050.00218.75
8.1.140.0080.00017.38
8.1.130.0040.00417.63
8.1.120.0000.00717.36
8.1.110.0030.00617.26
8.1.100.0000.00717.43
8.1.90.0040.00317.41
8.1.80.0000.00817.38
8.1.70.0030.00317.41
8.1.60.0070.00017.40
8.1.50.0000.00817.33
8.1.40.0030.00617.45
8.1.30.0000.00817.41
8.1.20.0000.00717.57
8.1.10.0070.00017.45
8.1.00.0040.00417.26
8.0.300.0040.00419.72
8.0.290.0000.00716.75
8.0.280.0070.00018.41
8.0.270.0000.00717.16
8.0.260.0000.00617.05
8.0.250.0040.00416.94
8.0.240.0070.00416.98
8.0.230.0000.00716.78
8.0.220.0040.00416.91
8.0.210.0030.00616.88
8.0.200.0000.00616.92
8.0.190.0000.00816.87
8.0.180.0060.00316.90
8.0.170.0040.00416.81
8.0.160.0030.00516.88
8.0.150.0030.00316.86
8.0.140.0000.00716.73
8.0.130.0000.00513.36
8.0.120.0000.01016.73
8.0.110.0000.00816.90
8.0.100.0000.00716.91
8.0.90.0030.00516.82
8.0.80.0130.01016.88
8.0.70.0000.00716.82
8.0.60.0000.00816.87
8.0.50.0070.00016.73
8.0.30.0060.01416.85
8.0.20.0090.00917.40
8.0.10.0000.00716.90
8.0.00.0150.00616.72
7.4.330.0050.00015.08
7.4.320.0000.00616.57
7.4.300.0000.00616.48
7.4.290.0020.00516.35
7.4.280.0030.00916.52
7.4.270.0040.00416.57
7.4.260.0070.00016.41
7.4.250.0040.00416.30
7.4.240.0050.00216.48
7.4.230.0070.00016.51
7.4.220.0100.00716.36
7.4.210.0060.00816.49
7.4.200.0020.00516.35
7.4.160.0060.01716.59
7.4.150.0180.00617.40
7.4.140.0050.01217.86
7.4.130.0110.00916.44
7.4.120.0080.01316.52
7.4.110.0140.01016.23
7.4.100.0160.01016.48
7.4.90.0130.00416.51
7.4.80.0150.00319.39
7.4.70.0110.00616.18
7.4.60.0100.00616.36
7.4.50.0030.00616.48
7.4.40.0110.00616.56
7.4.30.0090.00916.41
7.4.00.0030.01514.70
7.3.330.0000.00612.86
7.3.320.0060.00012.97
7.3.310.0050.00216.14
7.3.300.0030.00316.16
7.3.290.0040.00416.17
7.3.280.0050.01216.08
7.3.270.0100.00617.40
7.3.260.0070.01016.15
7.3.250.0120.00716.09
7.3.240.0130.00816.22
7.3.230.0130.00416.39
7.3.210.0130.00716.28
7.3.200.0090.00916.13
7.3.190.0000.01616.05
7.3.180.0100.00616.11
7.3.170.0130.00316.27
7.3.160.0000.01916.35
7.2.330.0070.01016.43
7.2.320.0100.00716.25
7.2.310.0130.01016.58
7.2.300.0100.00716.61
7.2.290.0100.01216.56
7.2.60.0060.00916.63
7.2.00.0080.00319.52
7.1.200.0030.00915.48
7.1.100.0150.00318.16
7.1.70.0070.01116.80
7.1.60.0060.01620.03
7.1.50.0070.01816.80
7.1.00.0030.07322.29
7.0.200.0120.00916.56
7.0.60.0070.09020.04
7.0.50.0070.08717.80
7.0.40.0030.09020.40
7.0.30.0230.08320.00
7.0.20.0400.07720.00
7.0.10.0030.05020.01
7.0.00.0070.06720.13
5.6.280.0000.04721.01
5.6.210.0270.07020.66
5.6.200.0130.07318.13
5.6.190.0070.06020.41
5.6.180.3100.05020.77
5.6.170.0170.04320.54
5.6.160.0070.08720.40
5.6.150.0000.06718.19
5.6.140.0070.03718.15
5.6.130.0170.07018.21
5.6.120.0000.04721.01
5.6.110.0100.07721.11
5.6.100.0130.06721.00
5.6.90.0130.06721.12
5.6.80.0070.05720.43
5.6.70.4430.04720.45
5.5.350.0070.03720.39
5.5.340.0030.04317.91
5.5.330.0070.08720.12
5.5.320.0330.07020.17
5.5.310.0230.07020.21
5.5.300.0030.07317.98
5.5.290.0170.07317.88
5.5.280.0130.07320.87
5.5.270.0100.06720.86
5.5.260.0030.08720.79
5.5.250.0070.05720.58
5.5.240.0300.06320.12
5.4.450.0570.05719.38
5.4.440.0700.05719.26
5.4.430.0670.05319.49
5.4.420.0630.05019.46
5.4.410.0700.04319.13
5.4.400.0670.05019.15
5.4.390.0500.05319.08
5.4.380.0530.04719.23
5.4.370.0700.04319.15
5.4.360.0530.07019.28
5.4.350.0530.05018.77
5.4.340.0470.05718.77
5.4.320.0530.05019.30
5.4.310.0430.05719.28
5.4.300.0600.05318.91
5.4.290.0600.05319.25
5.4.280.0600.06019.25
5.4.270.0500.05019.14
5.4.260.0570.04719.23
5.4.250.0600.05319.14
5.4.240.0500.06018.91
5.4.230.0630.05318.91
5.4.220.0530.05018.93
5.4.210.0500.05019.17
5.4.200.0630.03316.66
5.4.190.0530.05718.84
5.4.180.0630.05018.81
5.4.170.0500.06018.93
5.4.160.0570.05318.84
5.4.150.0570.05319.09
5.4.140.0630.05016.27
5.4.130.0730.05016.45
5.4.120.0630.04316.27
5.4.110.0470.06016.30
5.4.100.0500.06016.44
5.4.90.0500.05316.39
5.4.80.0470.05016.20
5.4.70.0600.05316.30
5.4.60.0630.04716.32
5.4.50.0530.04716.41
5.4.40.0530.04716.25
5.4.30.0630.04716.20
5.4.20.0500.05016.39
5.4.10.0470.05716.21
5.4.00.0800.05015.93

preferences:
61.49 ms | 400 KiB | 5 Q