3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = 'string'; var_dump(substr($str, 6));

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)
8.3.40.0150.00018.59
8.3.30.0040.01120.35
8.3.20.0040.00418.60
8.3.10.0040.00421.09
8.3.00.0110.00419.67
8.2.170.0110.00422.96
8.2.160.0170.00020.35
8.2.150.0000.00824.18
8.2.140.0060.00324.66
8.2.130.0050.00326.16
8.2.120.0040.00421.04
8.2.110.0030.00721.04
8.2.100.0060.00617.72
8.2.90.0000.00819.05
8.2.80.0040.00417.97
8.2.70.0030.00917.38
8.2.60.0040.00417.80
8.2.50.0060.00318.07
8.2.40.0000.00818.16
8.2.30.0070.00019.50
8.2.20.0000.00717.47
8.2.10.0080.00017.62
8.2.00.0040.00417.54
8.1.270.0030.00623.99
8.1.260.0000.01526.35
8.1.250.0080.00028.09
8.1.240.0030.00723.84
8.1.230.0030.00919.05
8.1.220.0040.00417.74
8.1.210.0090.00018.77
8.1.200.0030.00617.23
8.1.190.0080.00017.52
8.1.180.0000.00918.10
8.1.170.0050.00318.33
8.1.160.0070.00018.82
8.1.150.0060.00318.63
8.1.140.0030.00517.42
8.1.130.0080.00017.86
8.1.120.0000.00717.31
8.1.110.0030.00517.34
8.1.100.0030.00617.34
8.1.90.0020.00517.34
8.1.80.0000.00717.39
8.1.70.0040.00417.38
8.1.60.0040.00417.42
8.1.50.0050.00217.44
8.1.40.0060.00317.46
8.1.30.0000.00817.57
8.1.20.0040.00417.50
8.1.10.0040.00417.42
8.1.00.0020.00517.41
8.0.300.0050.00318.77
8.0.290.0070.00016.80
8.0.280.0030.00518.30
8.0.270.0000.00717.20
8.0.260.0030.00318.38
8.0.250.0050.00216.80
8.0.240.0000.00716.93
8.0.230.0070.00016.86
8.0.220.0030.00316.74
8.0.210.0000.00716.82
8.0.200.0060.00016.95
8.0.190.0040.00416.80
8.0.180.0060.00316.92
8.0.170.0000.00716.71
8.0.160.0040.00416.73
8.0.150.0070.00016.75
8.0.140.0050.00316.68
8.0.130.0030.00313.34
8.0.120.0000.00816.82
8.0.110.0000.00716.86
8.0.100.0050.00316.71
8.0.90.0040.00416.73
8.0.80.0110.01116.71
8.0.70.0040.00416.80
8.0.60.0040.00416.85
8.0.50.0000.00816.86
8.0.30.0140.00316.93
8.0.20.0140.00617.40
8.0.10.0040.00416.98
8.0.00.0050.01416.63
7.4.330.0000.00516.73
7.4.320.0040.00416.43
7.4.300.0020.00516.45
7.4.290.0030.00316.58
7.4.280.0040.00416.50
7.4.270.0040.00416.55
7.4.260.0000.00613.27
7.4.250.0040.00416.53
7.4.240.0000.00816.45
7.4.230.0030.00316.49
7.4.220.0110.01116.58
7.4.210.0060.00916.54
7.4.200.0050.00216.49
7.4.190.0040.00416.40
7.4.160.0080.00816.59
7.4.150.0090.00917.40
7.4.140.0100.01317.86
7.4.130.0080.01116.45
7.4.120.0120.00816.41
7.4.110.0110.00816.26
7.4.100.0130.00716.62
7.4.90.0110.00716.31
7.4.80.0040.01319.39
7.4.70.0100.01016.34
7.4.60.0060.01016.43
7.4.50.0080.00016.22
7.4.40.0040.01122.77
7.4.30.0130.00616.52
7.4.00.0080.00814.74
7.3.330.0050.00012.90
7.3.320.0000.00512.98
7.3.310.0000.00715.98
7.3.300.0040.00416.09
7.3.290.0070.00716.17
7.3.280.0080.00816.12
7.3.270.0070.01117.40
7.3.260.0100.01018.24
7.3.250.0110.00716.16
7.3.240.0120.00816.49
7.3.230.0000.01616.39
7.3.210.0180.00016.29
7.3.200.0040.01919.39
7.3.190.0140.00316.45
7.3.180.0080.00816.18
7.3.170.0080.00816.36
7.3.160.0130.00416.25
7.3.120.0000.01514.93
7.2.330.0160.00316.50
7.2.320.0130.00316.17
7.2.310.0060.01216.40
7.2.300.0140.00916.31
7.2.290.0100.00616.26
7.2.60.0040.01116.55
7.2.00.0030.00919.29
7.1.200.0090.00615.80
7.1.70.0000.00817.00
7.1.60.0060.00617.21
7.1.50.0130.01334.76
7.1.00.0070.04722.29
7.0.200.0060.00316.71
7.0.140.0070.07021.97
7.0.100.0130.03719.90
7.0.90.0030.03719.98
7.0.80.0000.04319.91
7.0.70.0130.03719.84
7.0.60.0070.03320.02
7.0.50.0130.03720.23
7.0.40.0030.05320.18
7.0.30.0070.08019.96
7.0.20.0000.03720.09
7.0.10.0030.08720.07
7.0.00.0030.08020.09
5.6.280.0030.07321.08
5.6.250.0070.04020.62
5.6.240.0070.06020.67
5.6.230.0070.05020.62
5.6.220.0000.03720.48
5.6.210.0030.04320.48
5.6.200.0070.04021.05
5.6.190.0030.04321.10
5.6.180.0100.03721.10
5.6.170.0070.08321.04
5.6.160.0130.07021.04
5.6.150.0070.07021.07
5.6.140.0100.06721.10
5.6.130.0030.09020.94
5.6.120.0030.05721.04
5.6.110.0070.08720.99
5.6.100.0130.07020.93
5.6.90.0000.07721.00
5.6.80.0030.07320.45
5.6.70.0070.07020.41
5.6.60.0030.08320.40
5.6.50.0100.06320.49
5.6.40.0030.07720.52
5.6.30.0070.07720.45
5.6.20.0030.06020.30
5.6.10.0170.07720.29
5.6.00.0070.07720.50
5.5.380.0000.04020.38
5.5.370.0070.04020.34
5.5.360.0030.03320.43
5.5.350.0100.03720.43
5.5.340.0030.03720.88
5.5.330.0000.03720.77
5.5.320.0070.04020.79
5.5.310.0030.07320.82
5.5.300.0100.09720.89
5.5.290.0030.07320.63
5.5.280.0130.08320.88
5.5.270.0100.08320.87
5.5.260.0100.04020.74
5.5.250.0130.03720.65
5.5.240.0130.07320.23
5.5.230.0130.07320.30
5.5.220.0170.07320.26
5.5.210.0070.08020.29
5.5.200.0070.04320.22
5.5.190.0030.07019.98
5.5.180.0030.08719.98
5.5.160.0070.05319.98
5.5.150.0070.08320.20
5.5.140.0200.07020.20
5.5.130.0030.04720.11
5.5.120.0070.04020.23
5.5.110.0000.04720.13
5.5.100.0100.03720.16
5.5.90.0030.08320.06
5.5.80.0030.06020.09
5.5.70.0030.04319.99
5.5.60.0170.07019.95
5.5.50.0100.08020.08
5.5.40.0100.04720.04
5.5.30.0130.03719.92
5.5.20.0030.07020.05
5.5.10.0130.08320.06
5.5.00.0100.07720.04
5.4.450.0100.04319.36
5.4.440.0070.08319.38
5.4.430.0100.09319.36
5.4.420.0130.04719.44
5.4.410.0000.08319.18
5.4.400.0070.08718.81
5.4.390.0030.07719.23
5.4.380.0170.06718.79
5.4.370.0030.06319.06
5.4.360.0030.04019.03
5.4.350.0100.03719.09
5.4.340.0100.07719.03
5.4.320.0070.06719.05
5.4.310.0130.07019.23
5.4.300.0070.07719.14
5.4.290.0070.08018.78
5.4.280.0100.07319.06
5.4.270.0030.04718.96
5.4.260.0000.07019.09
5.4.250.0030.07019.03
5.4.240.0130.03319.06
5.4.230.0000.04718.82
5.4.220.0070.04019.07
5.4.210.0070.07319.05
5.4.200.0130.07318.89
5.4.190.0000.06019.02
5.4.180.0100.07019.10
5.4.170.0130.05719.05
5.4.160.0030.04019.05
5.4.150.0070.05719.00
5.4.140.0130.06016.30
5.4.130.0070.07316.31
5.4.120.0130.04316.21
5.4.110.0100.07716.45
5.4.100.0070.07316.23
5.4.90.0070.06316.36
5.4.80.0030.07316.24
5.4.70.0100.07016.22
5.4.60.0030.07316.23
5.4.50.0070.03716.23
5.4.40.0070.07016.29
5.4.30.0170.06716.19
5.4.20.0100.03316.28
5.4.10.0070.04016.18
5.4.00.0200.04015.67
5.3.290.0130.08014.64
5.3.280.0070.03714.60
5.3.270.0070.06714.51
5.3.260.0100.07314.55
5.3.250.0070.06014.59
5.3.240.0070.03714.59
5.3.230.0030.08014.54
5.3.220.0030.06014.55
5.3.210.0030.07714.40
5.3.200.0130.04014.53
5.3.190.0030.05314.42
5.3.180.0130.05714.50
5.3.170.0100.06014.55
5.3.160.0070.07014.47
5.3.150.0030.05014.55
5.3.140.0070.07014.51
5.3.130.0000.05314.38
5.3.120.0030.04014.41
5.3.110.0070.05314.52
5.3.100.0070.05314.04
5.3.90.0030.04313.99
5.3.80.0000.07714.00
5.3.70.0000.05713.97
5.3.60.0130.05313.86
5.3.50.0030.06313.71
5.3.40.0100.07313.93
5.3.30.0100.06313.89
5.3.20.0030.08013.65
5.3.10.0000.07713.42
5.3.00.0130.03713.54
5.2.170.0030.04311.85
5.2.160.0100.03311.85
5.2.150.0070.05311.85
5.2.140.0070.05011.85
5.2.130.0030.06311.85
5.2.120.0030.03311.85
5.2.110.0000.04311.85
5.2.100.0030.03011.85
5.2.90.0070.06011.85
5.2.80.0030.04011.85
5.2.70.0030.03011.85
5.2.60.0030.05711.85
5.2.50.0070.03711.85
5.2.40.0100.06011.85
5.2.30.0000.06311.85
5.2.20.0270.02311.85
5.2.10.0000.06311.85
5.2.00.0030.04711.85
5.1.60.0070.02311.85
5.1.50.0030.02311.85
5.1.40.0030.02711.85
5.1.30.0000.03011.85
5.1.20.0070.02711.85
5.1.10.0100.04011.85
5.1.00.0070.02311.85
5.0.50.0070.04011.85
5.0.40.0100.04011.85
5.0.30.0070.04711.85
5.0.20.0030.02011.85
5.0.10.0100.03011.85
5.0.00.0070.05311.85
4.4.90.0030.01711.85
4.4.80.0000.02711.85
4.4.70.0030.03311.85
4.4.60.0000.02311.85
4.4.50.0000.03711.85
4.4.40.0130.02011.85
4.4.30.0030.03711.85
4.4.20.0030.03711.85
4.4.10.0070.03011.85
4.4.00.0070.02311.85
4.3.110.0030.03311.85
4.3.100.0030.03011.85
4.3.90.0000.03711.85
4.3.80.0070.05011.85
4.3.70.0000.03711.85
4.3.60.0070.01311.85
4.3.50.0000.03711.85
4.3.40.0000.05011.85
4.3.30.0000.03311.85
4.3.20.0000.04011.85
4.3.10.0000.02311.85
4.3.00.0000.03011.85

preferences:
44.03 ms | 400 KiB | 5 Q