3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(substr('tester', -2));

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)
8.3.60.0060.00618.05
8.3.50.0070.01221.93
8.3.40.0040.01118.39
8.3.30.0070.00719.06
8.3.20.0070.00020.29
8.3.10.0040.00421.95
8.3.00.0000.00822.52
8.2.180.0000.01516.32
8.2.170.0040.01122.96
8.2.160.0070.00718.99
8.2.150.0080.00024.18
8.2.140.0000.00824.66
8.2.130.0130.00626.16
8.2.120.0050.00319.23
8.2.110.0040.00422.18
8.2.100.0080.00319.39
8.2.90.0050.00319.05
8.2.80.0040.00417.97
8.2.70.0050.00317.13
8.2.60.0030.00617.68
8.2.50.0070.00318.07
8.2.40.0080.00019.82
8.2.30.0030.00517.99
8.2.20.0000.00817.51
8.2.10.0070.00017.56
8.2.00.0000.00819.33
8.1.280.0130.00725.92
8.1.270.0000.00822.19
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0060.00323.84
8.1.230.0040.00718.96
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0060.00317.23
8.1.190.0000.00717.26
8.1.180.0000.00818.39
8.1.170.0040.00418.59
8.1.160.0030.00322.15
8.1.150.0040.00418.42
8.1.140.0080.00017.20
8.1.130.0030.00317.79
8.1.120.0030.00317.35
8.1.110.0000.00717.28
8.1.100.0050.00317.37
8.1.90.0000.00717.35
8.1.80.0000.00717.37
8.1.70.0030.00317.26
8.1.60.0030.00717.39
8.1.50.0040.00417.36
8.1.40.0000.00817.43
8.1.30.0060.00317.48
8.1.20.0000.00817.52
8.1.10.0050.00317.26
8.1.00.0040.00417.29
8.0.300.0040.00418.77
8.0.290.0000.00717.15
8.0.280.0070.00018.32
8.0.270.0050.00217.05
8.0.260.0050.00316.59
8.0.250.0040.00416.83
8.0.240.0070.00016.72
8.0.230.0000.00716.72
8.0.220.0030.00316.79
8.0.210.0030.00316.66
8.0.200.0000.00616.71
8.0.190.0070.00016.77
8.0.180.0030.00316.85
8.0.170.0050.00316.76
8.0.160.0000.00716.72
8.0.150.0000.00716.77
8.0.140.0070.00016.76
8.0.130.0000.00513.25
8.0.120.0050.00316.74
8.0.110.0050.00316.60
8.0.100.0000.00816.87
8.0.90.0040.00416.71
8.0.80.0070.00716.80
8.0.70.0040.00416.79
8.0.60.0000.00716.66
8.0.50.0040.00416.76
8.0.30.0090.00916.94
8.0.20.0130.01217.40
8.0.10.0050.00216.84
8.0.00.0130.00616.53
7.4.330.0000.00515.00
7.4.320.0030.00316.51
7.4.300.0030.00316.47
7.4.290.0060.00316.29
7.4.280.0000.00716.35
7.4.270.0020.00516.51
7.4.260.0040.00416.48
7.4.250.0040.00416.39
7.4.240.0040.00316.40
7.4.230.0000.00716.53
7.4.220.0100.01016.57
7.4.210.0090.00716.46
7.4.200.0030.00316.28
7.4.190.0070.00016.60
7.4.160.0120.00416.23
7.4.150.0170.00017.40
7.4.140.0100.00817.86
7.4.130.0080.00816.33
7.4.120.0100.00716.46
7.4.110.0040.01416.30
7.4.100.0130.00916.30
7.4.90.0120.00616.50
7.4.80.0070.01719.39
7.4.70.0110.01016.24
7.4.60.0090.00916.47
7.4.50.0060.00315.92
7.4.40.0040.01122.77
7.4.30.0100.01016.23
7.4.00.0110.00614.56
7.3.330.0050.00013.07
7.3.320.0000.00613.05
7.3.310.0040.00416.06
7.3.300.0000.00616.12
7.3.290.0100.01016.15
7.3.280.0070.01016.11
7.3.270.0150.00717.40
7.3.260.0140.00316.42
7.3.250.0140.00316.17
7.3.240.0070.01316.18
7.3.230.0030.01316.39
7.3.210.0160.00016.13
7.3.200.0130.00619.39
7.3.190.0120.01016.39
7.3.180.0000.01516.14
7.3.170.0090.00616.27
7.3.160.0100.00616.41
7.3.120.0100.00714.67
7.3.110.0030.01414.70
7.3.100.0030.01314.61
7.3.90.0040.00714.60
7.3.80.0030.01014.31
7.3.70.0000.01214.67
7.3.60.0080.00014.36
7.3.50.0070.00714.36
7.3.40.0070.00714.76
7.3.30.0030.00714.52
7.3.20.0000.00916.64
7.3.10.0080.00416.33
7.3.00.0030.00916.43
7.2.330.0160.00916.36
7.2.320.0090.00616.59
7.2.310.0170.00716.30
7.2.300.0000.01616.32
7.2.290.0060.01616.15
7.2.250.0040.01414.94
7.2.240.0060.01315.06
7.2.230.0000.01014.55
7.2.220.0000.01614.79
7.2.210.0070.00714.90
7.2.200.0090.00014.79
7.2.190.0030.00814.74
7.2.180.0040.00415.03
7.2.170.0080.00414.95
7.2.60.0060.00616.82
7.2.00.0040.01119.04
7.1.330.0100.00315.65
7.1.320.0060.00615.79
7.1.310.0070.00715.71
7.1.300.0060.00315.67
7.1.290.0000.00815.61
7.1.280.0070.00715.64
7.1.270.0070.00715.64
7.1.260.0060.00315.65
7.1.200.0000.01015.78
7.1.100.0030.01018.14
7.1.70.0000.00717.15
7.1.60.0100.00017.25
7.1.50.0070.01416.90
7.1.00.0030.07322.40
7.0.200.0080.00816.77
7.0.140.0030.07321.99
7.0.60.0030.07019.77
7.0.50.0070.03717.88
7.0.40.0130.06720.20
7.0.30.0270.04720.02
7.0.20.0300.06020.16
7.0.10.0170.04020.02
7.0.00.0170.04019.99
5.6.280.0070.07021.09
5.6.210.0070.06020.75
5.6.200.0170.06318.13
5.6.190.0070.04020.45
5.6.180.3370.04020.67
5.6.170.0330.07020.61
5.6.160.0200.07020.34
5.6.150.0100.08318.13
5.6.140.0070.04018.21
5.6.130.0170.07018.21
5.6.120.0070.07020.98
5.6.110.0030.04320.93
5.6.100.0030.07721.02
5.6.90.0070.07320.99
5.6.80.0030.04020.50
5.6.70.0300.06020.34
5.5.350.0030.08720.43
5.5.340.0030.08017.99
5.5.330.0030.04720.15
5.5.320.0330.07020.34
5.5.310.0200.07320.27
5.5.300.0130.07317.89
5.5.290.0030.06318.02
5.5.280.0030.06020.86
5.5.270.0000.04720.76
5.5.260.0270.05720.79
5.5.250.0200.03720.68
5.5.240.0070.08020.14
5.4.450.0270.06019.11
5.4.440.0530.05719.48
5.4.430.0130.05019.48
5.4.420.0030.06319.15
5.4.410.0070.06019.36
5.4.400.0770.00018.61
5.4.390.0930.00018.65
5.4.380.0330.04718.50
5.4.370.0700.05718.49
5.4.360.0930.04318.69
5.4.350.1100.04718.77
5.4.340.0800.06718.65
5.4.320.0020.04412.45
5.4.310.0050.04312.45
5.4.300.0120.04612.45
5.4.290.0090.05012.45
5.4.280.0070.03512.35
5.4.270.0110.05012.35
5.4.260.0130.07018.84
5.4.250.0130.06718.84
5.4.240.0070.05318.69
5.4.230.0130.05018.74
5.4.220.0070.05718.68
5.4.210.0170.04719.01
5.4.200.0100.06318.70
5.4.190.0100.05019.00
5.4.180.0100.05018.78
5.4.170.0170.04018.75
5.4.160.0100.05318.98
5.4.150.0170.04318.77
5.4.140.0030.05716.29
5.4.130.0100.04716.45
5.4.120.0200.03716.39
5.4.110.0100.04716.50
5.4.100.0070.05016.46
5.4.90.0100.04716.52
5.4.80.0070.04716.46
5.4.70.0030.07016.45
5.4.60.0130.04316.13
5.4.50.0130.04016.38
5.4.40.0070.05016.21
5.4.30.0030.05316.33
5.4.20.0130.04716.30
5.4.10.0170.04716.30
5.4.00.0100.04315.90
5.3.290.0070.05212.80
5.3.280.0170.05014.51
5.3.270.0030.05714.44
5.3.260.0000.06014.61
5.3.250.0130.06014.59
5.3.240.0130.04314.48
5.3.230.0000.05714.64
5.3.220.0070.05014.65
5.3.210.0100.05014.41
5.3.200.0130.04714.61
5.3.190.0030.05714.40
5.3.180.0130.04714.58
5.3.170.0170.04014.45
5.3.160.0100.05014.65
5.3.150.0070.05314.61
5.3.140.0070.05014.46
5.3.130.0100.05014.69
5.3.120.0070.05714.56
5.3.110.0170.06314.55
5.3.100.0130.06713.91
5.3.90.0100.05314.11
5.3.80.0070.07014.06
5.3.70.0170.06014.02
5.3.60.0230.05714.14
5.3.50.0100.07013.86
5.3.40.0100.06714.05
5.3.30.0130.05313.61
5.3.20.0100.04713.63
5.3.10.0070.04713.69
5.3.00.0030.05313.47
5.2.170.0100.04011.25
5.2.160.0000.04711.16
5.2.150.0000.04710.97
5.2.140.0070.04011.05
5.2.130.0070.04311.20
5.2.120.0100.05311.11
5.2.110.0100.03310.86
5.2.100.0030.04310.93
5.2.90.0000.04310.85
5.2.80.0100.03711.02
5.2.70.0070.04011.10
5.2.60.0030.04310.94
5.2.50.0030.04010.93
5.2.40.0070.03711.02
5.2.30.0130.04710.99
5.2.20.0170.04010.87
5.2.10.0100.04311.01
5.2.00.0030.05310.88
5.1.60.0100.0409.99
5.1.50.0130.03710.14
5.1.40.0070.0339.74
5.1.30.0070.03710.16
5.1.20.0070.03310.40
5.1.10.0000.0409.97
5.1.00.0000.0409.95
5.0.50.0030.0278.30
5.0.40.0000.0308.35
5.0.30.0100.0538.10
5.0.20.0070.0238.18
5.0.10.0000.0308.22
5.0.00.0030.0438.14
4.4.90.0000.0236.79
4.4.80.0000.0236.79
4.4.70.0030.0206.79
4.4.60.0000.0236.79
4.4.50.0030.0206.79
4.4.40.0000.0436.79
4.4.30.0000.0236.79
4.4.20.0070.0276.79
4.4.10.0030.0206.79
4.4.00.0030.0336.79
4.3.110.0000.0236.79
4.3.100.0030.0206.79
4.3.90.0000.0206.79
4.3.80.0000.0376.79
4.3.70.0030.0176.79
4.3.60.0000.0236.79
4.3.50.0070.0276.79
4.3.40.0000.0336.79
4.3.30.0070.0276.79
4.3.20.0000.0236.79
4.3.10.0030.0206.79
4.3.00.0070.0239.25

preferences:
43.78 ms | 400 KiB | 5 Q