3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = '4111111111111111'; //$str = '4556494730120644'; $sKey = '8519293193919192153'; $s = ''; $j = 0; for($i=0;$i < strlen($str);$i++) { $s .= chr( ord(substr($str,$i,1)) + ord(substr($sKey,$j++,1))); if($j==strlen($sKey)) $j=0; } ; echo $s; echo "\n"; echo utf8_encode($s);

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)
8.3.60.0090.00618.43
8.3.50.0130.00921.96
8.3.40.0070.00718.59
8.3.30.0070.00719.09
8.3.20.0000.00820.30
8.3.10.0040.00420.66
8.3.00.0040.00419.26
8.2.180.0140.00318.16
8.2.170.0150.00318.91
8.2.160.0130.00022.96
8.2.150.0060.00325.66
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0040.00422.06
8.2.110.0050.00522.16
8.2.100.0080.00417.93
8.2.90.0000.00719.19
8.2.80.0090.00317.97
8.2.70.0030.00617.88
8.2.60.0000.00817.93
8.2.50.0080.00018.10
8.2.40.0030.00518.16
8.2.30.0040.00417.84
8.2.20.0030.00517.93
8.2.10.0000.00817.99
8.2.00.0040.00417.88
8.1.280.0070.00725.92
8.1.270.0090.00023.84
8.1.260.0050.00326.35
8.1.250.0110.00328.09
8.1.240.0100.00019.29
8.1.230.0060.00620.79
8.1.220.0000.00817.74
8.1.210.0030.00518.77
8.1.200.0080.00017.23
8.1.190.0030.00517.35
8.1.180.0040.00418.10
8.1.170.0060.00318.59
8.1.160.0040.00419.07
8.1.150.0070.00018.92
8.1.140.0080.00017.47
8.1.130.0030.00517.86
8.1.120.0020.00517.52
8.1.110.0050.00217.52
8.1.100.0040.00417.46
8.1.90.0000.00717.37
8.1.80.0020.00517.50
8.1.70.0000.00717.38
8.1.60.0070.00017.57
8.1.50.0030.00617.60
8.1.40.0070.00017.42
8.1.30.0040.00417.66
8.1.20.0050.00317.56
8.1.10.0000.00717.46
8.1.00.0030.00517.52
8.0.300.0040.00418.77
8.0.290.0000.00816.63
8.0.280.0030.00318.38
8.0.270.0030.00318.03
8.0.260.0000.00717.27
8.0.250.0070.00016.85
8.0.240.0040.00416.99
8.0.230.0050.00316.93
8.0.220.0030.00416.88
8.0.210.0000.00716.81
8.0.200.0030.00316.80
8.0.190.0040.00416.92
8.0.180.0000.00816.77
8.0.170.0060.00316.90
8.0.160.0030.00316.89
8.0.150.0000.00716.86
8.0.140.0070.00016.84
8.0.130.0030.00413.34
8.0.120.0040.00416.71
8.0.110.0040.00416.79
8.0.100.0050.00216.82
8.0.90.0040.00416.85
8.0.80.0040.01116.84
8.0.70.0000.00716.67
8.0.60.0040.00416.80
8.0.50.0050.00216.86
8.0.30.0150.00717.21
8.0.20.0110.00817.40
8.0.10.0040.00417.14
8.0.00.0130.00916.69
7.4.330.0050.00015.15
7.4.320.0030.00316.43
7.4.300.0060.00016.54
7.4.290.0000.00716.45
7.4.280.0000.00916.53
7.4.270.0030.00316.64
7.4.260.0030.00316.61
7.4.250.0040.00416.58
7.4.240.0040.00316.55
7.4.230.0000.00716.63
7.4.220.0070.01116.49
7.4.210.0070.00716.54
7.4.200.0000.00716.63
7.4.160.0140.00316.52
7.4.150.0090.00917.40
7.4.140.0110.00717.86
7.4.130.0090.00816.69
7.4.120.0070.00916.63
7.4.110.0030.01316.50
7.4.100.0140.00416.34
7.4.90.0080.00816.54
7.4.80.0140.00316.52
7.4.70.0100.00616.45
7.4.60.0030.01316.59
7.4.50.0000.00816.41
7.4.40.0080.00816.46
7.4.30.0060.00916.55
7.4.00.0060.01215.11
7.3.330.0050.00313.18
7.3.320.0060.00013.07
7.3.310.0070.00016.33
7.3.300.0000.00716.41
7.3.290.0120.00616.34
7.3.280.0080.01016.32
7.3.270.0090.00917.40
7.3.260.0130.01016.48
7.3.250.0080.01116.37
7.3.240.0100.00616.32
7.3.230.0090.00916.39
7.3.210.0090.00616.45
7.3.200.0030.01919.39
7.3.190.0060.01116.39
7.3.180.0070.01016.51
7.3.170.0100.00716.70
7.3.160.0060.01016.47
7.2.330.0140.00416.73
7.2.320.0110.00616.59
7.2.310.0190.00316.50
7.2.300.0190.00316.73
7.2.290.0030.01316.68
7.2.60.0070.01016.57
7.2.00.0060.00619.30
7.1.200.0000.00615.79
7.1.100.0030.01018.28
7.1.70.0040.00417.21
7.1.60.0040.01519.32
7.1.50.0100.01316.90
7.1.00.0030.07322.36
7.0.200.0030.00716.58
7.0.140.0070.07022.07
7.0.60.0100.07319.93
7.0.50.0130.07717.89
7.0.40.0130.07720.30
7.0.30.0200.03720.05
7.0.20.0270.07020.21
7.0.10.0070.06020.13
7.0.00.0030.08720.09
5.6.280.0030.07321.13
5.6.210.0100.05320.46
5.6.200.0070.05318.14
5.6.190.0030.04320.76
5.6.180.0600.06320.64
5.6.170.0200.03720.51
5.6.160.0070.08020.37
5.6.150.0070.08318.16
5.6.140.0170.06318.21
5.6.130.0100.05318.08
5.6.120.0070.09020.95
5.6.110.0200.07321.08
5.6.100.0070.07021.10
5.6.90.0030.08720.99
5.6.80.0070.08020.53
5.5.350.0130.07320.33
5.5.340.0100.05717.88
5.5.330.0070.06720.46
5.5.320.0400.07020.27
5.5.310.0270.08020.34
5.5.300.0100.03717.93
5.5.290.0070.04017.99
5.5.280.0030.05720.74
5.5.270.0130.06720.85
5.5.260.0070.04020.86
5.5.250.0100.07720.68
5.5.240.0230.06720.14
5.4.450.0270.05719.11
5.4.440.0470.04719.32
5.4.430.0300.04319.60
5.4.420.0370.05019.23
5.4.410.0170.06019.11
5.4.400.0370.05319.19
5.4.390.0330.06019.15
5.4.380.0230.06718.57
5.4.370.0300.07318.61
5.4.360.0330.07318.76
5.4.350.0430.05018.56
5.4.340.0570.06318.61
5.4.320.0040.03612.46
5.4.310.0060.03712.45
5.4.300.0050.03612.46
5.4.290.0060.03712.45
5.4.280.0050.03612.35
5.4.270.0040.03912.35
5.4.260.0040.03812.35
5.4.250.0050.03712.35
5.4.240.0060.03512.35
5.4.230.0060.03612.34
5.4.220.0030.04412.34
5.4.210.0050.03512.34
5.4.200.0040.03812.34
5.4.190.0060.03812.34
5.4.180.0080.03312.34
5.4.170.0060.03412.35
5.4.160.0040.03712.34
5.4.150.0050.03512.34
5.4.140.0020.04612.03
5.4.130.0060.03412.01
5.4.120.0040.03611.97
5.4.110.0060.04311.97
5.4.100.0050.04211.97
5.4.90.0060.03711.97
5.4.80.0050.03711.97
5.4.70.0080.03011.96
5.4.60.0020.03711.96
5.4.50.0040.03611.96
5.4.40.0080.03911.95
5.4.30.0050.03911.95
5.4.20.0050.03911.95
5.4.10.0100.03411.95
5.4.00.0050.04011.44
5.3.290.0040.04012.80
5.3.280.0050.04912.71
5.3.270.0070.04212.72
5.3.260.0050.04812.72
5.3.250.0070.03512.72
5.3.240.0070.03412.72
5.3.230.0030.03912.71
5.3.220.0060.04112.68
5.3.210.0150.03712.68
5.3.200.0100.03612.68
5.3.190.0060.04012.68
5.3.180.0040.03712.68
5.3.170.0050.03612.67
5.3.160.0050.03712.67
5.3.150.0040.03712.67
5.3.140.0010.04012.66
5.3.130.0070.03912.66
5.3.120.0040.04012.66
5.3.110.0060.03712.66
5.3.100.0060.04012.12
5.3.90.0060.03512.09
5.3.80.0070.03412.08
5.3.70.0060.03712.08
5.3.60.0050.03612.06
5.3.50.0030.03812.00
5.3.40.0030.03812.00
5.3.30.0080.04111.95
5.3.20.0080.03911.72
5.3.10.0040.04011.69
5.3.00.0030.03811.68
5.2.170.0030.0419.18
5.2.160.0030.0309.18
5.2.150.0030.0329.18
5.2.140.0070.0269.18
5.2.130.0060.0269.14
5.2.120.0060.0309.13
5.2.110.0050.0309.14
5.2.100.0060.0269.14
5.2.90.0050.0309.14
5.2.80.0070.0339.13
5.2.70.0030.0339.14
5.2.60.0040.0329.09
5.2.50.0060.0289.05
5.2.40.0040.0299.03
5.2.30.0060.0359.01
5.2.20.0020.0319.00
5.2.10.0050.0308.92
5.2.00.0040.0368.78
5.1.60.0070.0258.06
5.1.50.0030.0258.06
5.1.40.0040.0278.04
5.1.30.0020.0278.39
5.1.20.0030.0348.41
5.1.10.0060.0238.14
5.1.00.0060.0288.14
5.0.50.0040.0266.61
5.0.40.0030.0206.47
5.0.30.0050.0286.29
5.0.20.0040.0246.26
5.0.10.0060.0176.24
5.0.00.0020.0326.23
4.4.90.0000.0204.78
4.4.80.0000.0194.76
4.4.70.0050.0154.76
4.4.60.0020.0184.75
4.4.50.0020.0154.77
4.4.40.0050.0224.71
4.4.30.0040.0164.76
4.4.20.0030.0174.84
4.4.10.0020.0184.85
4.4.00.0030.0274.76
4.3.110.0010.0164.67
4.3.100.0020.0224.66
4.3.90.0020.0154.63
4.3.80.0030.0254.58
4.3.70.0020.0154.63
4.3.60.0020.0154.63
4.3.50.0010.0194.63
4.3.40.0040.0254.54
4.3.30.0020.0153.28
4.3.20.0030.0233.25
4.3.10.0030.0203.22
4.3.00.0070.0276.94

preferences:
45.91 ms | 401 KiB | 5 Q