3v4l.org

run code in 300+ PHP versions simultaneously
<?php print_r(substr("", 0, 3));

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)
8.3.60.0100.00718.23
8.3.50.0130.00517.46
8.3.40.0100.01018.54
8.3.30.0040.01118.77
8.3.20.0080.00018.54
8.3.10.0040.00418.49
8.3.00.0080.00018.88
8.2.180.0090.01216.38
8.2.170.0090.01222.96
8.2.160.0040.01118.66
8.2.150.0090.00024.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0050.00219.42
8.2.110.0090.00021.02
8.2.100.0120.00317.66
8.2.90.0070.00319.14
8.2.80.0000.00817.97
8.2.70.0060.00317.25
8.2.60.0000.00817.80
8.2.50.0080.00017.91
8.2.40.0080.00019.10
8.2.30.0000.01017.38
8.2.20.0040.00717.33
8.2.10.0050.00217.43
8.2.00.0030.00617.61
8.1.280.0070.00725.92
8.1.270.0040.00423.99
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0030.00620.93
8.1.230.0080.00317.77
8.1.220.0070.00017.74
8.1.210.0000.00918.77
8.1.200.0030.00617.23
8.1.190.0060.00317.22
8.1.180.0000.00918.89
8.1.170.0040.00417.62
8.1.160.0030.00318.91
8.1.150.0000.00718.50
8.1.140.0040.00417.33
8.1.130.0030.00317.31
8.1.120.0000.00717.25
8.1.110.0030.00517.20
8.1.100.0000.00817.38
8.1.90.0080.00017.22
8.1.80.0080.00017.31
8.1.70.0070.00017.25
8.1.60.0070.00017.35
8.1.50.0040.00417.25
8.1.40.0030.00517.43
8.1.30.0040.00417.43
8.1.20.0030.00917.43
8.1.10.0000.00817.29
8.1.00.0040.00417.28
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0000.00718.44
8.0.270.0030.00317.04
8.0.260.0030.00316.69
8.0.250.0070.00216.81
8.0.240.0000.00816.81
8.0.230.0030.00616.70
8.0.220.0030.00316.68
8.0.210.0000.00716.73
8.0.200.0000.00616.71
8.0.190.0050.00216.70
8.0.180.0070.00016.79
8.0.170.0060.00316.70
8.0.160.0030.00516.68
8.0.150.0030.00716.77
8.0.140.0000.00716.74
8.0.130.0000.00513.18
8.0.120.0050.00316.63
8.0.110.0000.00716.61
8.0.100.0040.00416.75
8.0.90.0000.00716.57
8.0.80.0000.01416.69
8.0.70.0000.00716.81
8.0.60.0080.00016.77
8.0.50.0020.00616.56
8.0.30.0130.00317.14
8.0.20.0130.00517.02
8.0.10.0050.00316.95
8.0.00.0130.00616.74
7.4.330.0020.00212.87
7.4.320.0040.00416.35
7.4.300.0040.00416.38
7.4.290.0050.00316.47
7.4.280.0000.00816.33
7.4.270.0080.00316.41
7.4.260.0000.00513.21
7.4.250.0000.00916.46
7.4.240.0030.00316.38
7.4.230.0030.00316.46
7.4.220.0060.01216.56
7.4.210.0030.01316.48
7.4.200.0070.00016.36
7.4.190.0030.00616.34
7.4.160.0090.00916.14
7.4.150.0110.00616.41
7.4.140.0100.01017.86
7.4.130.0040.01516.44
7.4.120.0100.01316.46
7.4.110.0170.00316.46
7.4.100.0080.00816.59
7.4.90.0090.00916.21
7.4.80.0090.00919.39
7.4.70.0080.00816.32
7.4.60.0120.00616.22
7.4.50.0030.00516.43
7.4.40.0120.00616.40
7.4.30.0100.01016.38
7.4.00.0030.01014.64
7.3.330.0000.00513.05
7.3.320.0000.00612.95
7.3.310.0040.00416.20
7.3.300.0030.00316.13
7.3.290.0100.00616.13
7.3.280.0060.00916.08
7.3.270.0160.00016.35
7.3.260.0030.01416.09
7.3.240.0090.00616.40
7.3.230.0090.00616.22
7.3.210.0040.01216.11
7.3.200.0140.00716.50
7.3.190.0130.00316.31
7.3.180.0060.01016.13
7.3.170.0070.01116.14
7.3.160.0100.00716.13
7.3.120.0030.00915.00
7.2.330.0120.00616.33
7.2.320.0110.00716.46
7.2.310.0130.00616.45
7.2.300.0100.01016.38
7.2.290.0190.00016.30
7.2.60.0030.00916.96
7.1.200.0000.01315.68
7.1.70.0000.01017.07
7.1.60.0090.01519.25
7.1.50.0090.00616.83
7.1.00.0030.03322.35
7.0.200.0050.00216.63
7.0.140.0030.07322.12
7.0.120.0030.06722.23
7.0.60.0270.07319.96
7.0.50.0100.04317.87
7.0.40.0070.06020.07
7.0.30.0030.06320.35
7.0.20.0030.08720.25
7.0.10.0000.09719.96
7.0.00.0070.04020.20
5.6.280.0130.06320.90
5.6.210.0030.04020.54
5.6.200.0070.08318.19
5.6.190.0100.08320.49
5.6.180.0100.06320.40
5.6.170.0070.07320.61
5.6.160.0030.04320.40
5.6.150.0070.07020.11
5.6.140.0070.04020.37
5.6.130.0100.08320.10
5.6.120.0070.04320.44
5.6.110.0100.08320.37
5.6.100.0030.08020.36
5.6.90.0100.03720.43
5.6.80.0030.08719.82
5.6.70.0100.07319.64
5.6.60.0030.04019.78
5.6.50.0030.05019.82
5.6.40.0100.03319.64
5.6.30.0030.04019.72
5.6.20.0000.04319.46
5.6.10.0070.03719.46
5.6.00.0030.04019.75
5.5.350.0070.08020.43
5.5.340.0030.05318.02
5.5.330.0130.04320.40
5.5.320.0070.05020.37
5.5.310.0130.04320.29
5.5.300.0030.04320.12
5.5.290.0030.05720.11
5.5.280.0070.04020.21
5.5.270.0070.08020.11
5.5.260.0030.04320.07
5.5.250.0070.06320.01
5.5.240.0100.07319.62
5.5.230.0030.04019.58
5.5.220.0030.04019.50
5.5.210.0070.03719.52
5.5.200.0070.03719.47
5.5.190.0100.03319.52
5.5.180.0100.04319.63
5.5.160.0100.03319.42
5.5.150.0070.04019.55
5.5.140.0070.03719.28
5.5.130.0000.04319.31
5.5.120.0030.04019.31
5.5.110.0000.05019.24
5.5.100.0030.03719.48
5.5.90.0130.03319.17
5.5.80.0130.04719.45
5.5.70.0070.03719.47
5.5.60.0000.04019.50
5.5.50.0000.04019.47
5.5.40.0030.03719.40
5.5.30.0030.04019.44
5.5.20.0100.03319.30
5.5.10.0070.04319.25
5.5.00.0070.03719.44
5.4.450.0070.05019.13
5.4.440.0030.04019.46
5.4.430.0100.07719.44
5.4.420.0000.05019.48
5.4.410.0000.06319.28
5.4.400.0100.04319.19
5.4.390.0000.04018.80
5.4.380.0070.03319.18
5.4.370.0030.03719.09
5.4.360.0030.03718.91
5.4.350.0070.03719.18
5.4.340.0030.05318.79
5.4.320.0000.04019.14
5.4.310.0000.04019.18
5.4.300.0070.03318.80
5.4.290.0030.03719.18
5.4.280.0000.04018.91
5.4.270.0030.04018.93
5.4.260.0070.03319.11
5.4.250.0170.04018.80
5.4.240.0070.03319.16
5.4.230.0000.04018.80
5.4.220.0030.03718.78
5.4.210.0030.04718.91
5.4.200.0100.03719.19
5.4.190.0070.03319.14
5.4.180.0000.04019.17
5.4.170.0030.03719.07
5.4.160.0100.03018.98
5.4.150.0070.03719.05
5.4.140.0030.03716.24
5.4.130.0000.04716.47
5.4.120.0170.02316.47
5.4.110.0070.06016.32
5.4.100.0030.04316.36
5.4.90.0070.07016.27
5.4.80.0030.06316.39
5.4.70.0030.04716.35
5.4.60.0030.04016.21
5.4.50.0100.03716.20
5.4.40.0000.04016.57
5.4.30.0070.04016.33
5.4.20.0030.05716.43
5.4.10.0070.05716.34
5.4.00.0030.06015.64
5.3.290.0030.03714.48
5.3.280.0030.03714.53
5.3.270.0030.03714.57
5.3.260.0070.03714.69
5.3.250.0030.03314.50
5.3.240.0000.04014.52
5.3.230.0030.08314.52
5.3.220.0030.03714.46
5.3.210.0100.06714.48
5.3.200.0070.07314.50
5.3.190.0030.06314.48
5.3.180.0130.04014.50
5.3.170.0130.05014.53
5.3.160.0030.06314.48
5.3.150.0070.06314.48
5.3.140.0000.04314.51
5.3.130.0100.07314.47
5.3.120.0100.06314.47
5.3.110.0070.06014.49
5.3.100.0070.07313.95
5.3.90.0070.03313.94
5.3.80.0000.04013.83
5.3.70.0030.03713.84
5.3.60.0030.03713.93
5.3.50.0000.07713.87
5.3.40.0000.04313.88
5.3.30.0170.02313.72
5.3.20.0170.04013.66
5.3.10.0070.03313.57
5.3.00.0030.04013.47
5.2.170.0070.06311.13
5.2.160.0000.03311.07
5.2.150.0070.02711.07
5.2.140.0070.05010.96
5.2.130.0070.06011.08
5.2.120.0070.05011.00
5.2.110.0070.02710.97
5.2.100.0000.04711.03
5.2.90.0070.02711.03
5.2.80.0100.03311.07
5.2.70.0070.06010.91
5.2.60.0070.05010.97
5.2.50.0000.04310.90
5.2.40.0030.03310.92
5.2.30.0030.03010.90
5.2.20.0030.03010.89
5.2.10.0030.06310.84
5.2.00.0030.03310.70
5.1.60.0070.0279.89
5.1.50.0000.0339.98
5.1.40.0170.03310.04
5.1.30.0070.03010.38
5.1.20.0000.06010.43
5.1.10.0000.03010.07
5.1.00.0030.03010.21
5.0.50.0000.0278.52
5.0.40.0070.0378.44
5.0.30.0030.0338.29
5.0.20.0000.0238.18
5.0.10.0000.0238.13
5.0.00.0000.0538.21
4.4.90.0030.0337.37
4.4.80.0000.0377.37
4.4.70.0000.0207.37
4.4.60.0000.0207.37
4.4.50.0000.0277.37
4.4.40.0000.0377.37
4.4.30.0000.0377.37
4.4.20.0000.0177.37
4.4.10.0000.0237.37
4.4.00.0000.0537.37
4.3.110.0030.0177.37
4.3.100.0000.0177.37
4.3.90.0000.0337.37
4.3.80.0000.0577.37
4.3.70.0030.0337.37
4.3.60.0000.0177.37
4.3.50.0000.0177.37
4.3.40.0000.0307.37
4.3.30.0000.0307.37
4.3.20.0000.0407.37
4.3.10.0000.0377.37
4.3.00.0030.0337.37

preferences:
56.17 ms | 401 KiB | 5 Q