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)
8.3.60.0070.00716.50
8.3.50.0100.00821.88
8.3.40.0150.00018.59
8.3.30.0100.00319.04
8.3.20.0080.00020.21
8.3.10.0000.00723.66
8.3.00.0050.00319.38
8.2.180.0130.00718.04
8.2.170.0070.01022.96
8.2.160.0100.00320.25
8.2.150.0080.00024.18
8.2.140.0080.00024.66
8.2.130.0000.00826.16
8.2.120.0080.00022.20
8.2.110.0040.00420.51
8.2.100.0060.00617.72
8.2.90.0040.00419.34
8.2.80.0000.00817.97
8.2.70.0050.00317.50
8.2.60.0050.00317.93
8.2.50.0030.00618.07
8.2.40.0050.00320.01
8.2.30.0000.00718.18
8.2.20.0050.00217.75
8.2.10.0050.00318.00
8.2.00.0050.00517.62
8.1.280.0070.01325.92
8.1.270.0040.00422.05
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0040.00423.75
8.1.230.0040.00820.97
8.1.220.0080.00017.76
8.1.210.0050.00318.77
8.1.200.0030.00617.35
8.1.190.0040.00417.53
8.1.180.0000.01018.10
8.1.170.0000.00918.50
8.1.160.0040.00422.00
8.1.150.0000.00718.54
8.1.140.0050.00317.39
8.1.130.0030.00317.87
8.1.120.0000.00717.30
8.1.110.0040.00417.38
8.1.100.0060.00317.31
8.1.90.0040.00417.36
8.1.80.0030.00317.30
8.1.70.0000.00817.29
8.1.60.0000.00817.53
8.1.50.0060.00317.30
8.1.40.0040.00417.47
8.1.30.0000.00817.59
8.1.20.0040.00417.61
8.1.10.0040.00417.57
8.1.00.0020.00517.42
8.0.300.0040.00418.77
8.0.290.0070.00017.04
8.0.280.0030.00318.41
8.0.270.0030.00317.26
8.0.260.0000.00717.32
8.0.250.0030.00316.98
8.0.240.0040.00416.93
8.0.230.0030.00616.79
8.0.220.0000.00716.82
8.0.210.0000.00716.86
8.0.200.0090.00016.86
8.0.190.0040.00416.86
8.0.180.0070.00016.80
8.0.170.0000.00716.77
8.0.160.0000.00716.71
8.0.150.0000.00716.74
8.0.140.0030.00316.80
8.0.130.0030.00313.22
8.0.120.0040.00416.79
8.0.110.0040.00416.64
8.0.100.0000.00716.71
8.0.90.0000.00716.79
8.0.80.0070.00716.78
8.0.70.0070.00016.70
8.0.60.0040.00416.71
8.0.50.0030.00316.82
8.0.30.0080.01116.88
8.0.20.0100.01217.40
8.0.10.0080.00016.81
8.0.00.0080.01016.71
7.4.330.0000.00515.00
7.4.320.0000.00716.48
7.4.300.0000.00716.50
7.4.290.0070.00016.58
7.4.280.0030.00616.41
7.4.270.0000.00716.39
7.4.260.0000.00716.42
7.4.250.0030.00616.39
7.4.240.0030.00316.51
7.4.230.0000.00716.38
7.4.220.0130.01116.57
7.4.210.0070.00616.53
7.4.200.0030.00316.65
7.4.190.0000.00716.70
7.4.160.0060.00916.30
7.4.150.0170.00017.40
7.4.140.0160.00517.86
7.4.130.0110.00516.56
7.4.120.0060.01016.58
7.4.110.0140.00716.36
7.4.100.0130.00816.48
7.4.90.0180.00016.61
7.4.80.0030.01619.39
7.4.70.0080.00816.63
7.4.60.0100.00716.38
7.4.50.0050.00316.18
7.4.40.0070.00722.77
7.4.30.0150.00616.43
7.4.00.0140.00015.00
7.3.330.0000.00713.04
7.3.320.0070.00013.05
7.3.310.0000.00816.26
7.3.300.0030.00316.32
7.3.290.0060.00916.44
7.3.280.0140.00616.32
7.3.270.0100.00717.40
7.3.260.0120.00916.48
7.3.250.0130.00916.34
7.3.240.0090.01016.38
7.3.230.0110.01116.47
7.3.210.0100.00716.23
7.3.200.0200.00319.39
7.3.190.0080.00816.35
7.3.180.0140.00316.43
7.3.170.0140.00316.48
7.3.160.0130.00316.21
7.3.120.0040.01214.82
7.2.330.0090.00616.59
7.2.320.0030.01416.73
7.2.310.0120.00616.35
7.2.300.0060.01716.58
7.2.290.0070.01116.71
7.1.70.0040.00817.13
7.1.60.0040.01819.46
7.1.50.0090.00616.82
7.1.00.0070.07322.24
7.0.200.0190.00014.51
7.0.140.0030.07321.93
7.0.60.0130.07719.94
7.0.50.0130.07717.88
7.0.40.0030.05020.27
7.0.30.0500.06720.18
7.0.20.0270.05020.17
7.0.10.0070.08720.02
7.0.00.0030.04720.19
5.6.280.0030.07320.91
5.6.210.0030.07720.50
5.6.200.0130.05718.09
5.6.190.0030.08720.77
5.6.180.0200.04020.35
5.6.170.0230.08020.37
5.6.160.0030.04020.44
5.6.150.0070.04018.22
5.6.140.0100.07718.17
5.6.130.0170.07018.21
5.6.120.0070.08320.98
5.6.110.0170.05721.10
5.6.100.0130.08020.98
5.6.90.0000.09320.96
5.6.80.0030.07720.37
5.6.70.3370.03320.46
5.5.350.0200.09020.46
5.5.340.0070.05317.98
5.5.330.0030.08720.40
5.5.320.0270.05020.34
5.5.310.0300.07320.30
5.5.300.0030.07318.02
5.5.290.0030.05318.02
5.5.280.0070.04020.87
5.5.270.0270.04720.86
5.5.260.0100.08020.95
5.5.250.0130.07720.71
5.5.240.0300.07020.23
5.4.450.0970.06719.30
5.4.440.0970.04719.23
5.4.430.0430.06319.48
5.4.420.0800.06319.44
5.4.410.1070.05319.49
5.4.400.1130.05019.08
5.4.390.0070.06018.98
5.4.380.0400.05318.75
5.4.370.0230.06018.57
5.4.360.0370.05018.66
5.4.350.0500.03718.63
5.4.340.0500.07018.51
5.4.320.0100.03212.45
5.4.310.0030.04012.45
5.4.300.0070.03712.45
5.4.290.0070.03712.44
5.4.280.0080.03312.34
5.4.270.0060.03612.34
5.4.260.0060.03712.33
5.4.250.0060.03712.34
5.4.240.0040.03812.33
5.4.230.0100.06212.32
5.4.220.0080.05112.32
5.4.210.0070.03712.32
5.4.200.0080.05312.33
5.4.190.0090.05012.32
5.4.180.0070.04512.32
5.4.170.0070.05312.33
5.4.160.0090.04812.33
5.4.150.0070.04912.32
5.4.140.0130.06612.01
5.4.130.0130.05712.00
5.4.120.0100.04811.96
5.4.110.0100.04511.95
5.4.100.0100.03911.95
5.4.90.0110.05811.95
5.4.80.0090.04711.95
5.4.70.0070.04511.95
5.4.60.0070.08611.94
5.4.50.0050.05111.94
5.4.40.0090.04711.93
5.4.30.0150.06011.93
5.4.20.0130.06211.93
5.4.10.0090.05611.93
5.4.00.0060.03611.41
5.3.290.0090.03712.80
5.3.280.0070.03912.71
5.3.270.0080.05412.72
5.3.260.0150.07512.72
5.3.250.0080.04512.72
5.3.240.0070.04812.72
5.3.230.0070.04012.71
5.3.220.0090.04212.68
5.3.210.0090.03812.68
5.3.200.0100.04012.68
5.3.190.0020.04312.68
5.3.180.0070.03712.68
5.3.170.0030.04012.67
5.3.160.0050.03912.67
5.3.150.0100.03512.67
5.3.140.0080.04012.66
5.3.130.0060.04012.66
5.3.120.0060.04012.66
5.3.110.0080.03912.66
5.3.100.0050.04012.12
5.3.90.0090.04112.08
5.3.80.0040.03912.07
5.3.70.0070.05312.07
5.3.60.0030.04212.06
5.3.50.0070.03712.00
5.3.40.0090.04912.00
5.3.30.0090.03111.94
5.3.20.0070.03411.73
5.3.10.0050.04011.69
5.3.00.0060.03711.67
5.2.170.0090.0269.18
5.2.160.0040.0309.18
5.2.150.0060.0299.18
5.2.140.0060.0299.18
5.2.130.0090.0309.13
5.2.120.0070.0459.13
5.2.110.0110.0379.14
5.2.100.0180.0459.13
5.2.90.0070.0329.14
5.2.80.0080.0449.13
5.2.70.0030.0479.13
5.2.60.0040.0399.08
5.2.50.0100.0469.06
5.2.40.0050.0289.04
5.2.30.0060.0419.00
5.2.20.0050.0399.00
5.2.10.0090.0358.92
5.2.00.0050.0418.77
5.1.60.0090.0268.06
5.1.50.0080.0328.05
5.1.40.0120.0308.04
5.1.30.0070.0418.39
5.1.20.0080.0378.41
5.1.10.0080.0288.13
5.1.00.0050.0308.14
5.0.50.0050.0196.61
5.0.40.0030.0196.48
5.0.30.0060.0296.29
5.0.20.0010.0226.26
5.0.10.0050.0196.24
5.0.00.0030.0346.23
4.4.90.0030.0154.78
4.4.80.0030.0154.75
4.4.70.0020.0174.76
4.4.60.0030.0154.75
4.4.50.0070.0114.77
4.4.40.0040.0254.71
4.4.30.0030.0174.76
4.4.20.0040.0184.85
4.4.10.0010.0194.84
4.4.00.0130.0394.76
4.3.110.0070.0284.67
4.3.100.0070.0204.66
4.3.90.0070.0204.63
4.3.80.0060.0324.59
4.3.70.0030.0214.63
4.3.60.0040.0204.63
4.3.50.0060.0194.63
4.3.40.0030.0324.54
4.3.30.0030.0223.29
4.3.20.0030.0223.27
4.3.10.0030.0223.23
4.3.00.0330.02310.54

preferences:
37.71 ms | 401 KiB | 5 Q