3v4l.org

run code in 300+ PHP versions simultaneously
<?php $cha = 'a'; $next_cha = ++$cha; //The following if condition prevent you to go beyond 'z' or 'Z' and will reset to 'a' or 'A'. if (strlen($next_cha) > 1) { $next_cha = $next_cha[0]; } echo $next_cha; ?>

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)
8.3.70.0070.00718.40
8.3.60.0070.00716.49
8.3.50.0150.00522.00
8.3.40.0220.00018.66
8.3.30.0110.01119.23
8.3.20.0060.01320.30
8.3.10.0180.00023.63
8.3.00.0030.00619.38
8.2.180.0110.01118.16
8.2.170.0210.00022.96
8.2.160.0070.00720.35
8.2.150.0030.00624.18
8.2.140.0110.00724.66
8.2.130.0090.00026.16
8.2.120.0000.00822.08
8.2.110.0070.00322.18
8.2.100.0080.00418.03
8.2.90.0030.00519.27
8.2.80.0050.00317.97
8.2.70.0080.00017.50
8.2.60.0030.00518.04
8.2.50.0080.00018.10
8.2.40.0080.00020.59
8.2.30.0000.01018.06
8.2.20.0030.00617.74
8.2.10.0030.00619.96
8.2.00.0040.00717.62
8.1.280.0150.00425.92
8.1.270.0100.00022.04
8.1.260.0030.00526.35
8.1.250.0030.00528.09
8.1.240.0060.00322.06
8.1.230.0000.01117.83
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0030.00617.36
8.1.190.0040.00417.10
8.1.180.0000.00818.10
8.1.170.0040.00418.51
8.1.160.0080.00022.15
8.1.150.0060.00318.57
8.1.140.0040.00417.30
8.1.130.0000.00717.93
8.1.120.0000.00717.41
8.1.110.0000.01117.40
8.1.100.0030.00317.30
8.1.90.0030.00317.29
8.1.80.0030.00517.43
8.1.70.0030.00517.37
8.1.60.0060.00317.51
8.1.50.0030.00517.50
8.1.40.0040.00417.49
8.1.30.0030.00617.52
8.1.20.0000.00717.50
8.1.10.0060.00317.49
8.1.00.0000.00817.49
8.0.300.0000.00718.77
8.0.290.0030.00716.75
8.0.280.0030.00318.31
8.0.270.0080.00017.13
8.0.260.0030.00317.30
8.0.250.0040.00416.93
8.0.240.0080.00017.00
8.0.230.0000.00716.90
8.0.220.0070.00016.83
8.0.210.0040.00416.87
8.0.200.0000.00716.96
8.0.190.0070.00016.88
8.0.180.0040.00416.81
8.0.170.0060.00316.73
8.0.160.0000.00716.74
8.0.150.0070.00016.81
8.0.140.0030.00516.79
8.0.130.0060.00013.19
8.0.120.0040.00416.85
8.0.110.0070.00016.69
8.0.100.0080.00016.73
8.0.90.0070.00016.74
8.0.80.0120.00316.88
8.0.70.0030.00516.79
8.0.60.0040.00416.64
8.0.50.0040.00416.79
8.0.30.0090.00916.94
8.0.20.0130.00717.40
8.0.10.0070.00016.89
8.0.00.0040.01316.71
7.4.330.0050.00015.00
7.4.320.0000.00716.45
7.4.300.0060.00016.53
7.4.290.0070.00016.55
7.4.280.0070.00016.54
7.4.270.0000.00716.39
7.4.260.0040.00416.41
7.4.250.0030.00316.41
7.4.240.0040.00316.47
7.4.230.0000.00716.65
7.4.220.0100.00716.52
7.4.210.0100.00716.44
7.4.200.0000.00716.47
7.4.190.0050.00216.45
7.4.160.0060.00916.70
7.4.150.0180.00017.40
7.4.140.0130.00517.86
7.4.130.0070.01016.46
7.4.120.0120.00516.59
7.4.110.0060.01216.63
7.4.100.0090.00916.55
7.4.90.0120.00916.59
7.4.80.0040.00819.39
7.4.70.0140.00316.57
7.4.60.0000.02016.52
7.4.50.0050.00016.45
7.4.40.0050.00522.77
7.4.30.0030.02016.38
7.4.00.0030.01415.00
7.3.330.0000.00813.17
7.3.320.0030.00313.06
7.3.310.0000.00716.35
7.3.300.0000.00716.37
7.3.290.0030.01016.32
7.3.280.0060.01216.31
7.3.270.0070.01017.40
7.3.260.0090.00916.27
7.3.250.0120.00716.35
7.3.240.0080.00816.43
7.3.230.0130.00716.39
7.3.210.0100.00616.31
7.3.200.0080.01319.39
7.3.190.0120.00916.48
7.3.180.0090.00616.55
7.3.170.0090.00916.43
7.3.160.0100.00616.52
7.3.120.0070.01114.66
7.3.110.0070.01014.85
7.3.100.0120.00314.54
7.3.90.0090.00614.92
7.3.80.0050.00514.90
7.3.70.0080.00414.84
7.3.60.0040.00714.70
7.3.50.0090.00614.78
7.3.40.0040.01214.81
7.3.30.0100.00014.70
7.3.20.0030.00716.56
7.3.10.0030.01116.64
7.3.00.0070.00816.50
7.2.330.0110.01116.71
7.2.320.0100.01416.52
7.2.310.0100.01116.54
7.2.300.0090.01316.68
7.2.290.0110.00616.79
7.2.240.0000.01415.07
7.2.230.0070.00715.13
7.2.220.0090.00315.03
7.2.210.0030.01215.06
7.2.200.0030.01314.57
7.2.190.0060.00914.88
7.2.180.0100.00714.81
7.2.170.0040.01415.05
7.2.160.0040.01415.06
7.2.150.0100.00716.96
7.2.140.0000.00916.88
7.2.130.0050.00516.82
7.2.120.0060.00616.89
7.2.110.0110.00416.94
7.2.100.0040.01016.88
7.2.90.0040.00516.89
7.2.80.0060.00816.70
7.2.70.0100.00417.01
7.2.60.0030.00816.94
7.2.50.0080.00416.90
7.2.40.0000.01316.87
7.2.30.0080.00616.80
7.2.20.0060.00817.01
7.2.10.0040.00716.79
7.2.00.0050.01217.72
7.1.330.0060.00915.75
7.1.320.0090.00615.81
7.1.310.0070.01015.80
7.1.300.0030.01015.63
7.1.290.0000.01015.78
7.1.280.0030.01415.57
7.1.270.0060.00615.50
7.1.260.0090.00315.48
7.1.250.0050.00915.70
7.1.100.0130.00617.85
7.1.70.0040.00417.03
7.1.60.0080.01519.46
7.1.50.0070.01516.78
7.1.00.0030.07722.35
7.0.200.0000.00816.62
7.0.140.0000.07022.05
7.0.60.0100.03320.03
7.0.50.0100.03717.83
7.0.40.0000.05020.04
7.0.30.0530.05720.17
7.0.20.0470.06320.13
7.0.10.0430.05720.20
7.0.00.0130.08320.32
5.6.280.0100.06721.12
5.6.210.0030.04020.52
5.6.200.0030.08318.08
5.6.190.0200.07320.45
5.6.180.0300.07720.27
5.6.170.0230.08320.71
5.6.160.0000.04720.44
5.6.150.0070.06018.12
5.6.140.0100.07718.16
5.6.130.0100.08018.20
5.6.120.0130.07020.98
5.6.110.0070.07721.13
5.6.100.0070.05721.11
5.6.90.0130.05721.07
5.6.80.0130.03020.38
5.6.70.4470.03720.36
5.5.350.0100.08320.42
5.5.340.0100.05017.95
5.5.330.0130.03320.21
5.5.320.0270.04320.32
5.5.310.0400.06320.18
5.5.300.0070.08018.00
5.5.290.0070.07317.98
5.5.280.0030.07720.96
5.5.270.0070.04020.86
5.5.260.0270.06320.94
5.5.250.0130.06720.57
5.5.240.0300.06320.03
5.4.450.0670.06719.47
5.4.440.0870.05719.46
5.4.430.0600.05719.23
5.4.420.0470.05319.40
5.4.410.0800.05719.32
5.4.400.0730.05019.27
5.4.390.0100.05719.27
5.4.380.0300.05318.70
5.4.370.0370.05018.50
5.4.360.0370.05018.50
5.4.350.0330.04718.61
5.4.340.0200.05718.53
5.4.320.0090.03812.46
5.4.310.0070.04212.45
5.4.300.0050.03812.45
5.4.290.0140.07912.43
5.4.280.0070.05312.34
5.4.270.0140.05912.34
5.4.260.0100.03912.34
5.4.250.0050.04112.34
5.4.240.0090.04412.33
5.4.230.0060.04212.32
5.4.220.0060.04612.32
5.4.210.0060.05512.32
5.4.200.0150.08512.32
5.4.190.0090.04512.32
5.4.180.0200.08312.32
5.4.170.0160.06812.33
5.4.160.0070.04012.33
5.4.150.0090.07912.33
5.4.140.0130.05012.01
5.4.130.0170.07312.00
5.4.120.0090.07811.96
5.4.110.0100.04111.95
5.4.100.0080.05311.95
5.4.90.0080.05711.95
5.4.80.0060.04011.95
5.4.70.0060.05811.94
5.4.60.0130.06211.95
5.4.50.0090.07411.94
5.4.40.0110.09311.93
5.4.30.0060.05411.93
5.4.20.0080.03711.93
5.4.10.0060.06111.93
5.4.00.0110.04711.41
5.3.290.0070.04112.80
5.3.280.0170.06612.71
5.3.270.0220.10112.72
5.3.260.0150.07412.72
5.3.250.0070.05712.72
5.3.240.0070.06212.72
5.3.230.0090.05112.71
5.3.220.0080.05112.68
5.3.210.0180.06412.68
5.3.200.0120.06812.68
5.3.190.0150.07612.68
5.3.180.0220.06512.68
5.3.170.0150.07612.67
5.3.160.0150.07312.67
5.3.150.0100.06612.67
5.3.140.0090.05412.66
5.3.130.0170.08712.66
5.3.120.0190.07912.66
5.3.110.0060.08312.66
5.3.100.0060.07112.12
5.3.90.0100.05812.08
5.3.80.0080.05312.07
5.3.70.0080.04612.08
5.3.60.0130.04112.06
5.3.50.0060.05312.00
5.3.40.0070.05012.00
5.3.30.0120.05811.94
5.3.20.0090.04411.72
5.3.10.0120.05111.69
5.3.00.0090.05311.67
5.2.170.0050.0489.18
5.2.160.0080.0649.18
5.2.150.0070.0429.18
5.2.140.0040.0499.18
5.2.130.0090.0439.14
5.2.120.0040.0389.13
5.2.110.0110.0349.14
5.2.100.0090.0309.13
5.2.90.0060.0329.14
5.2.80.0060.0399.13
5.2.70.0070.0549.13
5.2.60.0070.0449.08
5.2.50.0080.0469.05
5.2.40.0050.0439.03
5.2.30.0030.0349.00
5.2.20.0090.0269.00
5.2.10.0030.0338.92
5.2.00.0070.0368.77
5.1.60.0030.0378.06
5.1.50.0080.0458.05
5.1.40.0030.0438.04
5.1.30.0070.0448.39
5.1.20.0080.0408.41
5.1.10.0050.0398.13
5.1.00.0040.0448.13
5.0.50.0120.0626.62
5.0.40.0050.0296.48
5.0.30.0090.0476.29
5.0.20.0040.0286.25
5.0.10.0020.0316.23
5.0.00.0020.0356.23
4.4.90.0040.0234.78
4.4.80.0020.0254.75
4.4.70.0060.0224.75
4.4.60.0020.0244.75
4.4.50.0050.0234.77
4.4.40.0090.0344.71
4.4.30.0040.0214.76
4.4.20.0090.0444.84
4.4.10.0080.0284.85
4.4.00.0050.0404.76
4.3.110.0030.0154.67
4.3.100.0020.0174.66
4.3.90.0040.0144.64
4.3.80.0020.0284.58
4.3.70.0060.0134.63
4.3.60.0030.0164.63
4.3.50.0030.0174.63
4.3.40.0040.0264.53
4.3.30.0040.0223.29
4.3.20.0020.0263.27
4.3.10.0020.0233.22
4.3.00.0030.01710.54

preferences:
56.2 ms | 401 KiB | 5 Q