3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo substr("abcdef", -3, 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)
8.3.60.0120.00616.38
8.3.50.0140.00522.79
8.3.40.0100.00718.63
8.3.30.0030.01019.11
8.3.20.0040.00418.52
8.3.10.0080.00023.70
8.3.00.0000.00819.07
8.2.180.0110.00818.13
8.2.170.0130.00622.96
8.2.160.0110.00420.38
8.2.150.0000.00724.18
8.2.140.0000.00824.66
8.2.130.0050.00226.16
8.2.120.0040.00422.08
8.2.110.0000.01021.03
8.2.100.0090.00517.91
8.2.90.0050.00318.92
8.2.80.0000.00817.97
8.2.70.0060.00317.50
8.2.60.0030.00517.91
8.2.50.0040.00418.07
8.2.40.0030.00618.22
8.2.30.0040.00417.89
8.2.20.0040.00417.70
8.2.10.0000.00817.99
8.2.00.0000.00917.93
8.1.280.0070.00725.92
8.1.270.0100.01020.38
8.1.260.0030.00526.35
8.1.250.0040.00428.09
8.1.240.0000.00822.34
8.1.230.0070.00720.83
8.1.220.0000.00918.77
8.1.210.0060.00318.77
8.1.200.0060.00316.88
8.1.190.0040.00416.88
8.1.180.0050.00318.10
8.1.170.0050.00318.46
8.1.160.0050.00221.81
8.1.150.0000.00818.71
8.1.140.0000.00817.31
8.1.130.0000.00817.73
8.1.120.0040.00417.31
8.1.110.0070.00017.27
8.1.100.0040.00417.34
8.1.90.0030.00317.18
8.1.80.0040.00417.29
8.1.70.0030.00317.18
8.1.60.0040.00417.37
8.1.50.0070.00017.25
8.1.40.0050.00317.42
8.1.30.0020.00517.57
8.1.20.0040.00417.45
8.1.10.0040.00417.32
8.1.00.0120.00017.35
8.0.300.0000.00719.82
8.0.290.0040.00416.75
8.0.280.0030.00318.29
8.0.270.0030.00317.12
8.0.260.0030.00317.10
8.0.250.0000.00816.73
8.0.240.0050.00216.71
8.0.230.0060.00316.83
8.0.220.0040.00416.71
8.0.210.0080.00016.69
8.0.200.0000.00716.86
8.0.190.0040.00316.77
8.0.180.0070.00016.67
8.0.170.0040.00416.80
8.0.160.0080.00016.77
8.0.150.0000.00716.58
8.0.140.0040.00316.68
8.0.130.0000.00513.20
8.0.120.0050.00316.75
8.0.110.0040.00416.66
8.0.100.0040.00416.66
8.0.90.0080.00016.80
8.0.80.0190.00316.71
8.0.70.0050.00316.82
8.0.60.0000.00716.61
8.0.50.0040.00416.64
8.0.30.0120.00917.06
8.0.20.0060.01217.40
8.0.10.0050.00216.77
8.0.00.0100.00716.84
7.4.330.0000.00615.03
7.4.320.0050.00316.44
7.4.300.0000.00616.46
7.4.290.0030.00316.45
7.4.280.0040.00416.42
7.4.270.0000.00716.29
7.4.260.0040.00416.48
7.4.250.0070.00016.46
7.4.240.0070.00016.44
7.4.230.0020.00516.34
7.4.220.0190.00016.47
7.4.210.0070.00716.46
7.4.200.0000.00716.30
7.4.160.0110.00416.23
7.4.150.0090.00917.40
7.4.140.0160.00517.86
7.4.130.0090.01116.36
7.4.120.0100.00616.54
7.4.110.0060.01416.26
7.4.100.0000.01816.34
7.4.90.0100.01016.32
7.4.80.0070.01019.39
7.4.70.0090.00916.36
7.4.60.0060.00916.22
7.4.50.0040.00016.43
7.4.40.0130.00716.39
7.4.30.0120.00616.57
7.4.00.0100.00714.98
7.3.330.0060.00012.86
7.3.320.0000.00512.96
7.3.310.0040.00416.12
7.3.300.0030.00316.14
7.3.290.0000.00715.93
7.3.280.0110.00616.09
7.3.270.0070.01117.40
7.3.260.0070.01016.49
7.3.250.0110.00816.38
7.3.240.0060.01216.34
7.3.230.0130.00916.39
7.3.210.0100.00716.31
7.3.200.0150.00919.39
7.3.190.0060.01016.40
7.3.180.0070.01016.17
7.3.170.0090.00916.27
7.3.160.0030.01216.14
7.3.120.0060.01014.84
7.3.110.0030.01214.68
7.3.100.0070.01114.66
7.3.90.0100.00614.74
7.3.80.0070.01014.33
7.3.70.0080.00614.68
7.3.60.0030.00814.73
7.3.50.0070.01014.52
7.3.40.0000.01014.72
7.3.30.0110.00014.62
7.3.20.0030.01316.68
7.3.10.0000.01416.50
7.3.00.0060.00916.48
7.2.330.0100.01316.59
7.2.320.0190.00416.39
7.2.310.0090.00916.60
7.2.300.0030.01316.54
7.2.290.0100.01016.30
7.2.240.0030.00914.93
7.2.230.0030.00914.81
7.2.220.0070.00714.87
7.2.210.0070.00715.04
7.2.200.0000.01014.70
7.2.190.0070.00714.82
7.2.180.0040.00814.67
7.2.170.0000.01515.07
7.2.160.0070.00714.75
7.2.150.0000.01416.80
7.2.140.0000.01516.88
7.2.130.0080.00316.77
7.2.120.0000.01316.87
7.2.110.0100.00316.73
7.2.100.0060.00916.87
7.2.90.0060.00616.72
7.2.80.0060.01216.86
7.2.70.0060.00916.88
7.2.60.0070.00716.61
7.2.50.0130.00316.74
7.2.40.0060.00616.87
7.2.30.0130.00016.87
7.2.20.0070.00716.83
7.2.10.0110.00016.56
7.2.00.0050.00818.00
7.1.330.0000.01415.42
7.1.320.0070.00715.60
7.1.310.0060.00615.63
7.1.300.0030.00715.63
7.1.290.0030.01215.47
7.1.280.0040.00815.69
7.1.270.0090.00615.66
7.1.260.0050.00515.45
7.1.250.0070.00315.56
7.1.200.0080.00315.46
7.1.100.0060.00617.95
7.1.70.0030.00616.75
7.1.60.0090.01519.38
7.1.50.0070.01616.44
7.1.00.0030.07722.31
7.0.200.0100.00316.50
7.0.60.0100.07019.89
7.0.50.0070.08317.87
7.0.40.0130.06320.24
7.0.30.0330.05020.00
7.0.20.0200.08720.20
7.0.10.0070.06320.09
7.0.00.0100.07320.08
5.6.280.0000.07720.90
5.6.210.0030.08320.52
5.6.200.0000.04318.12
5.6.190.0030.04320.78
5.6.180.0200.07320.39
5.6.170.0230.08020.52
5.6.160.0030.08020.49
5.6.150.0100.08018.11
5.6.140.0030.03718.11
5.6.130.0000.09318.07
5.6.120.0130.03320.99
5.6.110.0030.05721.11
5.6.100.0070.05021.00
5.6.90.0100.05020.92
5.6.80.0000.06020.37
5.5.350.0130.07720.46
5.5.340.0130.03717.98
5.5.330.0130.04020.36
5.5.320.0000.05020.07
5.5.310.0200.08020.34
5.5.300.0170.04017.91
5.5.290.0000.05017.90
5.5.280.0030.07320.66
5.5.270.0070.09020.77
5.5.260.0030.08320.78
5.5.250.0100.07320.53
5.5.240.0130.03720.03
5.4.450.0130.05719.43
5.4.440.0770.05719.49
5.4.430.0770.05719.16
5.4.420.0100.06019.34
5.4.410.0200.05319.56
5.4.400.0030.06019.20
5.4.390.0100.05319.16
5.4.380.0130.05718.96
5.4.370.0130.07019.05
5.4.360.0230.06019.14
5.4.350.0100.06019.15
5.4.340.0130.05319.09
5.4.320.0000.08719.08
5.4.310.0100.07318.99
5.4.300.0100.07319.16
5.4.290.0200.06319.17
5.4.280.0130.07019.15
5.4.270.0100.06718.91
5.4.260.0070.07018.95
5.4.250.0170.06718.99
5.4.240.0200.06718.99
5.4.230.0130.06719.16
5.4.220.0100.07319.13
5.4.210.0100.07319.11
5.4.200.0070.07316.51
5.4.190.0100.07318.83
5.4.180.0170.05018.92
5.4.170.0200.06719.03
5.4.160.0070.05319.12
5.4.150.0130.06018.97
5.4.140.0200.06316.22
5.4.130.0170.05316.38
5.4.120.0130.04316.21
5.4.110.0070.05316.37
5.4.100.0170.05316.56
5.4.90.0070.06316.34
5.4.80.0200.04016.35
5.4.70.0130.05016.49
5.4.60.0100.07016.52
5.4.50.0170.04716.16
5.4.40.0070.06716.38
5.4.30.0100.06716.50
5.4.20.0070.05716.30
5.4.10.0170.05016.30
5.4.00.0100.04715.86
5.3.290.0130.06714.58
5.3.280.0170.06314.43
5.3.270.0170.06714.44
5.3.260.0100.07314.61
5.3.250.0230.05714.46
5.3.240.0130.06314.46
5.3.230.0130.06714.57
5.3.220.0130.06014.45
5.3.210.0170.04714.41
5.3.200.0070.05314.45
5.3.190.0000.06014.47
5.3.180.0070.05314.50
5.3.170.0070.05314.57
5.3.160.0100.05314.47
5.3.150.0100.05014.43
5.3.140.0200.04314.53
5.3.130.0130.06314.42
5.3.120.0170.06314.33
5.3.110.0200.06714.44
5.3.100.0070.07313.89
5.3.90.0170.06314.05
5.3.80.0230.05713.87
5.3.70.0030.07313.86
5.3.60.0170.06013.84
5.3.50.0200.05713.92
5.3.40.0070.07013.88
5.3.30.0170.04013.77
5.3.20.0070.05013.69
5.3.10.0070.05013.52
5.3.00.0100.04713.49
5.2.170.0070.04011.14
5.2.160.0030.04311.06
5.2.150.0070.04011.22
5.2.140.0100.03711.23
5.2.130.0030.04310.96
5.2.120.0170.03010.93
5.2.110.0000.04711.10
5.2.100.0100.03710.88
5.2.90.0070.04010.95
5.2.80.0000.04711.03
5.2.70.0070.04010.93
5.2.60.0070.04010.93
5.2.50.0100.04310.93
5.2.40.0000.04710.91
5.2.30.0000.04710.86
5.2.20.0000.04310.89
5.2.10.0130.03710.88
5.2.00.0100.03710.69
5.1.60.0100.0309.92
5.1.50.0070.03310.03
5.1.40.0030.03710.00
5.1.30.0100.03010.41
5.1.20.0070.03710.27
5.1.10.0100.03010.07
5.1.00.0030.04010.05
5.0.50.0030.0308.63
5.0.40.0030.0278.44
5.0.30.0030.0438.21
5.0.20.0000.0308.22
5.0.10.0030.0278.29
5.0.00.0000.0478.07
4.4.90.0070.0235.74
4.4.80.0070.0175.78
4.4.70.0000.0235.80
4.4.60.0070.0175.73
4.4.50.0000.0235.77
4.4.40.0030.0335.89
4.4.30.0030.0205.84
4.4.20.0030.0235.87
4.4.10.0030.0205.86
4.4.00.0030.0335.89
4.3.110.0030.0205.70
4.3.100.0070.0175.71
4.3.90.0000.0235.67
4.3.80.0000.0375.75
4.3.70.0000.0235.67
4.3.60.0070.0175.66
4.3.50.0000.0235.64
4.3.40.0030.0335.64
4.3.30.0000.0234.52
4.3.20.0030.0204.39
4.3.10.0000.0234.51
4.3.00.0030.01715.73

preferences:
59.18 ms | 401 KiB | 5 Q