3v4l.org

run code in 300+ PHP versions simultaneously
<?php substr("abcdef", 0, -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)
8.3.60.0070.01116.75
8.3.50.0110.00722.06
8.3.40.0040.01118.44
8.3.30.0030.01018.79
8.3.20.0040.00420.20
8.3.10.0080.00023.66
8.3.00.0000.00820.57
8.2.180.0090.00616.63
8.2.170.0100.01022.96
8.2.160.0030.01022.27
8.2.150.0050.00324.18
8.2.140.0080.00024.66
8.2.130.0100.00326.16
8.2.120.0000.00722.15
8.2.110.0030.00622.25
8.2.100.0080.00417.78
8.2.90.0090.00017.67
8.2.80.0040.00417.97
8.2.70.0030.00517.50
8.2.60.0000.00817.80
8.2.50.0030.00618.07
8.2.40.0060.00319.34
8.2.30.0000.00717.96
8.2.20.0080.00017.59
8.2.10.0050.00319.45
8.2.00.0000.00817.46
8.1.280.0120.00625.92
8.1.270.0030.00623.71
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0000.01022.26
8.1.230.0120.00320.95
8.1.220.0080.00017.74
8.1.210.0000.00818.98
8.1.200.0050.00517.22
8.1.190.0040.00417.41
8.1.180.0060.00318.10
8.1.170.0000.00918.48
8.1.160.0000.00721.89
8.1.150.0050.00318.42
8.1.140.0040.00417.23
8.1.130.0090.00017.75
8.1.120.0070.00017.19
8.1.110.0040.00417.29
8.1.100.0030.00317.36
8.1.90.0040.00417.29
8.1.80.0030.00317.22
8.1.70.0000.00817.32
8.1.60.0100.00017.32
8.1.50.0030.00517.44
8.1.40.0000.00817.36
8.1.30.0050.00317.40
8.1.20.0030.00517.46
8.1.10.0020.00517.41
8.1.00.0040.00417.36
8.0.300.0000.00719.73
8.0.290.0040.00417.03
8.0.280.0080.00018.36
8.0.270.0000.00717.03
8.0.260.0040.00416.79
8.0.250.0040.00416.79
8.0.240.0000.00816.73
8.0.230.0070.00016.88
8.0.220.0040.00416.76
8.0.210.0070.00016.68
8.0.200.0030.00316.84
8.0.190.0040.00416.68
8.0.180.0030.00316.78
8.0.170.0030.00516.84
8.0.160.0040.00416.71
8.0.150.0070.00016.70
8.0.140.0030.00516.70
8.0.130.0050.00013.19
8.0.120.0080.00016.71
8.0.110.0050.00316.64
8.0.100.0000.00716.66
8.0.90.0040.00416.57
8.0.80.0070.00716.70
8.0.70.0000.00716.56
8.0.60.0000.00816.72
8.0.50.0070.00016.63
8.0.30.0060.01317.02
8.0.20.0140.00617.40
8.0.10.0030.00316.83
8.0.00.0050.01216.75
7.4.330.0020.00215.02
7.4.320.0000.00716.46
7.4.300.0000.00616.37
7.4.290.0070.00016.34
7.4.280.0000.00716.45
7.4.270.0000.00716.46
7.4.260.0030.00316.44
7.4.250.0030.00316.31
7.4.240.0040.00316.40
7.4.230.0030.00316.25
7.4.220.0120.00816.35
7.4.210.0080.00716.43
7.4.200.0000.00716.57
7.4.190.0070.00016.40
7.4.160.0060.01016.27
7.4.150.0070.01117.40
7.4.140.0070.01217.86
7.4.130.0110.00616.38
7.4.120.0060.01616.33
7.4.110.0060.01016.50
7.4.100.0060.01116.33
7.4.90.0110.00616.20
7.4.80.0060.01016.37
7.4.70.0070.01016.46
7.4.60.0100.00916.35
7.4.50.0040.00416.24
7.4.40.0100.00822.77
7.4.30.0190.00016.51
7.4.00.0030.01414.79
7.3.330.0000.00512.97
7.3.320.0000.00512.86
7.3.310.0000.00716.20
7.3.300.0040.00416.13
7.3.290.0130.00316.29
7.3.280.0120.00616.15
7.3.270.0120.00617.40
7.3.260.0130.00916.41
7.3.250.0100.00916.44
7.3.240.0070.01116.23
7.3.230.0030.01516.39
7.3.210.0070.01116.09
7.3.200.0070.01519.39
7.3.190.0070.01016.09
7.3.180.0110.00416.41
7.3.170.0040.01116.27
7.3.160.0060.00916.35
7.3.120.0100.00714.79
7.2.330.0080.00816.29
7.2.320.0000.01616.39
7.2.310.0090.00616.49
7.2.300.0080.00816.18
7.2.290.0100.00616.27
7.2.60.0030.01016.70
7.2.00.0000.01418.98
7.1.200.0040.01115.65
7.1.100.0000.00818.11
7.1.70.0030.00616.83
7.1.60.0060.01919.32
7.1.50.0120.00616.90
7.1.00.0070.07322.40
7.0.200.0040.00416.58
7.0.140.0030.07321.90
7.0.80.0100.08019.84
7.0.70.0270.06319.86
7.0.60.0130.08319.98
7.0.50.0070.08020.33
7.0.40.0130.06320.08
7.0.30.0070.05020.05
7.0.20.0070.05020.18
7.0.10.0200.07720.16
7.0.00.0100.07320.18
5.6.280.0000.07721.04
5.6.230.0100.08320.66
5.6.220.0100.08020.65
5.6.210.0130.07320.65
5.6.200.0100.08021.10
5.6.190.0070.08021.04
5.6.180.0130.06021.04
5.6.170.0070.07321.07
5.6.160.0100.07321.10
5.6.150.0170.07321.08
5.6.140.0100.05020.95
5.6.130.0070.04020.99
5.6.120.0130.07720.93
5.6.110.0000.08721.03
5.6.100.0100.07721.06
5.6.90.0100.08721.05
5.6.80.0100.08020.46
5.6.70.0070.05020.45
5.6.60.0070.06020.45
5.6.50.0170.03720.46
5.6.40.0130.07020.41
5.6.30.0070.08720.52
5.6.20.0200.07320.46
5.6.10.0130.05320.48
5.6.00.0070.04320.43
5.5.370.0170.07320.35
5.5.360.0100.08320.42
5.5.350.0070.08320.32
5.5.340.0130.07320.85
5.5.330.0170.08020.88
5.5.320.0170.07020.91
5.5.310.0130.08020.81
5.5.300.0100.08020.89
5.5.290.0100.08320.86
5.5.280.0030.04320.76
5.5.270.0100.05720.71
5.5.260.0070.06720.78
5.5.250.0030.06720.64
5.5.240.0070.05020.20
5.5.230.0130.07320.16
5.5.220.0070.06720.13
5.5.210.0100.07020.10
5.5.200.0070.05720.17
5.5.190.0170.06320.05
5.5.180.0170.07020.16
5.5.160.0070.04320.12
5.5.150.0170.07719.94
5.5.140.0200.06020.24
5.5.130.0070.06020.25
5.5.120.0130.07020.11
5.5.110.0070.07320.24
5.5.100.0070.04720.11
5.5.90.0130.07720.14
5.5.80.0000.08320.07
5.5.70.0000.05020.08
5.5.60.0070.04020.07
5.5.50.0030.04020.02
5.5.40.0100.03320.05
5.5.30.0000.04319.91
5.5.20.0030.04019.91
5.5.10.0000.04320.11
5.5.00.0100.03319.95
5.4.450.0070.06019.47
5.4.440.0130.07719.44
5.4.430.0000.05019.44
5.4.420.0070.08019.37
5.4.410.0070.07319.29
5.4.400.0070.04319.07
5.4.390.0030.04019.03
5.4.380.0030.08019.25
5.4.370.0030.07719.13
5.4.360.0030.08718.98
5.4.350.0100.04719.02
5.4.340.0130.07018.96
5.4.320.0100.08019.24
5.4.310.0030.08019.11
5.4.300.0130.07318.94
5.4.290.0030.08019.02
5.4.280.0100.05319.09
5.4.270.0070.04018.96
5.4.260.0030.07318.81
5.4.250.0100.07319.11
5.4.240.0100.04319.02
5.4.230.0030.04319.07
5.4.220.0070.03719.13
5.4.210.0030.03718.80
5.4.200.0070.05319.22
5.4.190.0030.04019.03
5.4.180.0130.03718.80
5.4.170.0030.04019.01
5.4.160.0070.04019.00
5.4.150.0000.04719.00
5.4.140.0130.06316.33
5.4.130.0030.05016.27
5.4.120.0030.04016.38
5.4.110.0070.04016.49
5.4.100.0030.03716.42
5.4.90.0130.02716.44
5.4.80.0130.03716.33
5.4.70.0030.03716.42
5.4.60.0070.03316.44
5.4.50.0100.03016.23
5.4.40.0070.03316.26
5.4.30.0000.04316.23
5.4.20.0030.03716.25
5.4.10.0000.04016.39
5.4.00.0070.06315.92
5.3.290.0130.06314.65
5.3.280.0030.05014.55
5.3.270.0130.03014.56
5.3.260.0030.04014.46
5.3.250.0070.04014.55
5.3.240.0030.04314.56
5.3.230.0070.04714.54
5.3.220.0070.04714.52
5.3.210.0130.05714.52
5.3.200.0000.05714.54
5.3.190.0000.04014.43
5.3.180.0030.03714.42
5.3.170.0000.04014.50
5.3.160.0000.05314.55
5.3.150.0030.04014.54
5.3.140.0030.04014.37
5.3.130.0000.04714.53
5.3.120.0030.05314.54
5.3.110.0030.04314.40
5.3.100.0070.04713.86
5.3.90.0000.04313.97
5.3.80.0070.03713.78
5.3.70.0070.03313.97
5.3.60.0100.03313.91
5.3.50.0030.05313.85
5.3.40.0030.03713.90
5.3.30.0000.04013.85
5.3.20.0030.06013.45
5.3.10.0130.03013.61
5.3.00.0070.03313.40
5.2.170.0030.03012.83
5.2.160.0030.05712.83
5.2.150.0030.03012.83
5.2.140.0000.05312.83
5.2.130.0030.05312.83
5.2.120.0070.03012.83
5.2.110.0030.05712.83
5.2.100.0100.02312.83
5.2.90.0030.03012.83
5.2.80.0100.02712.83
5.2.70.0030.03012.83
5.2.60.0000.03712.83
5.2.50.0000.03012.83
5.2.40.0200.01312.83
5.2.30.0070.02712.83
5.2.20.0030.03712.83
5.2.10.0030.05312.83
5.2.00.0030.02712.83
5.1.60.0000.02312.83
5.1.50.0070.04012.83
5.1.40.0030.02312.83
5.1.30.0030.03012.83
5.1.20.0000.02312.83
5.1.10.0030.02312.83
5.1.00.0100.04712.83
5.0.50.0000.05012.83
5.0.40.0030.04312.83
5.0.30.0030.05012.83
5.0.20.0030.02312.83
5.0.10.0030.03712.83
5.0.00.0030.05012.83
4.4.90.0000.02012.83
4.4.80.0030.01312.83
4.4.70.0030.01312.83
4.4.60.0000.01712.83
4.4.50.0000.02012.83
4.4.40.0030.02012.83
4.4.30.0030.02712.83
4.4.20.0030.01312.83
4.4.10.0030.03312.83
4.4.00.0070.04312.83
4.3.110.0070.03312.83
4.3.100.0070.01712.83
4.3.90.0000.02012.83
4.3.80.0000.04012.83
4.3.70.0030.03312.83
4.3.60.0070.02712.83
4.3.50.0100.02012.83
4.3.40.0000.05712.83
4.3.30.0030.03312.83
4.3.20.0000.03712.83
4.3.10.0030.03312.83
4.3.00.0000.03312.83

preferences:
45.64 ms | 401 KiB | 5 Q