3v4l.org

run code in 300+ PHP versions simultaneously
<?php $str = '4111111111111111'; //$str = '4556494730120644'; $str = 'xxxxxxxxxxxx1111'; $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)) $j=0; } ; echo utf8_decode($s); echo "\n"; echo utf8_encode($s); echo "\n"; echo utf8_decode('????????????jbjc');

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)
8.3.60.0000.01518.40
8.3.50.0130.00822.10
8.3.40.0090.00918.88
8.3.30.0030.01019.09
8.3.20.0080.00020.20
8.3.10.0080.00020.61
8.3.00.0050.00319.51
8.2.180.0070.00716.88
8.2.170.0140.00322.96
8.2.160.0100.00319.04
8.2.150.0050.00324.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0070.00022.05
8.2.110.0080.00020.53
8.2.100.0070.00418.03
8.2.90.0050.00319.20
8.2.80.0050.00317.97
8.2.70.0040.00417.48
8.2.60.0080.00017.93
8.2.50.0030.00618.07
8.2.40.0040.00718.22
8.2.30.0040.00419.37
8.2.20.0000.00717.87
8.2.10.0000.00918.07
8.2.00.0040.00417.73
8.1.280.0150.00625.92
8.1.270.0030.00722.10
8.1.260.0030.00526.35
8.1.250.0070.00728.09
8.1.240.0060.00323.97
8.1.230.0120.00019.16
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0130.00516.98
8.1.190.0030.00617.10
8.1.180.0050.00318.10
8.1.170.0000.00818.56
8.1.160.0070.00021.88
8.1.150.0000.00718.84
8.1.140.0040.00417.46
8.1.130.0030.00317.75
8.1.120.0000.00717.45
8.1.110.0040.00417.36
8.1.100.0000.00717.46
8.1.90.0040.00417.35
8.1.80.0040.00417.46
8.1.70.0030.00317.40
8.1.60.0000.00817.63
8.1.50.0040.00417.53
8.1.40.0030.00617.39
8.1.30.0040.00417.61
8.1.20.0040.00417.67
8.1.10.0070.00017.43
8.1.00.0040.00417.33
8.0.300.0070.00018.77
8.0.290.0070.00016.63
8.0.280.0030.00318.48
8.0.270.0070.00017.24
8.0.260.0000.00617.21
8.0.250.0000.00716.99
8.0.240.0030.00316.97
8.0.230.0070.00016.87
8.0.220.0000.00816.74
8.0.210.0030.00316.78
8.0.200.0030.00316.87
8.0.190.0000.00816.91
8.0.180.0040.00416.74
8.0.170.0040.00416.70
8.0.160.0000.00816.84
8.0.150.0030.00316.77
8.0.140.0040.00416.80
8.0.130.0030.00313.34
8.0.120.0050.00316.82
8.0.110.0000.00816.82
8.0.100.0040.00416.71
8.0.90.0000.00716.87
8.0.80.0040.01116.80
8.0.70.0050.00216.65
8.0.60.0030.00516.87
8.0.50.0000.00716.85
8.0.30.0150.00717.34
8.0.20.0130.00617.40
8.0.10.0070.00017.07
8.0.00.0120.00616.75
7.4.330.0020.00215.20
7.4.320.0000.00716.63
7.4.300.0030.00316.36
7.4.290.0030.00516.45
7.4.280.0070.00016.51
7.4.270.0040.00416.50
7.4.260.0000.00816.46
7.4.250.0040.00416.61
7.4.240.0020.00516.55
7.4.230.0040.00416.31
7.4.220.0120.01516.62
7.4.210.0080.00716.63
7.4.200.0040.00316.40
7.4.160.0060.01216.45
7.4.150.0110.01217.40
7.4.140.0130.00717.86
7.4.130.0130.00616.40
7.4.120.0100.00816.38
7.4.110.0060.01216.55
7.4.100.0090.01316.46
7.4.90.0070.01016.51
7.4.80.0040.01716.48
7.4.70.0060.00916.62
7.4.60.0000.01616.41
7.4.50.0080.00016.59
7.4.40.0060.00916.43
7.4.30.0060.00916.35
7.4.00.0000.01315.11
7.3.330.0060.00013.08
7.3.320.0030.00313.13
7.3.310.0070.00016.41
7.3.300.0030.00316.13
7.3.290.0070.00716.31
7.3.280.0080.00816.36
7.3.270.0000.02117.40
7.3.260.0090.01516.28
7.3.250.0110.00716.44
7.3.240.0130.00916.38
7.3.230.0170.00016.39
7.3.210.0080.00816.34
7.3.200.0130.01219.39
7.3.190.0070.01016.53
7.3.180.0110.00716.25
7.3.170.0100.01016.60
7.3.160.0080.00816.43
7.2.330.0110.00716.80
7.2.320.0100.00716.62
7.2.310.0090.00916.55
7.2.300.0130.01016.76
7.2.290.0100.00716.48
7.2.00.0080.00419.13
7.1.200.0080.00315.88
7.1.100.0000.01617.88
7.1.70.0000.00717.22
7.1.60.0060.01919.32
7.1.50.0040.01916.63
7.1.00.0000.08022.46
7.0.200.0040.00416.78
7.0.140.0030.06721.99
7.0.60.0130.06320.09
7.0.50.0070.08017.81
7.0.40.0030.06320.14
7.0.30.0330.06320.17
7.0.20.0170.05720.33
7.0.10.0070.04320.30
7.0.00.0030.05320.09
5.6.280.0070.07020.92
5.6.210.0030.08020.59
5.6.200.0070.03718.12
5.6.190.0130.04720.60
5.6.180.0500.06720.41
5.6.170.0230.03320.33
5.6.160.0100.04720.54
5.6.150.0070.08718.14
5.6.140.0030.05318.18
5.6.130.0270.05318.18
5.6.120.0170.08020.93
5.6.110.0130.06021.13
5.6.100.0000.07721.08
5.6.90.0130.07720.87
5.6.80.0100.07320.40
5.5.350.0170.08320.39
5.5.340.0070.03717.95
5.5.330.0030.05320.20
5.5.320.0300.06020.30
5.5.310.0300.04720.20
5.5.300.0070.08018.02
5.5.290.0070.07717.86
5.5.280.0070.08320.79
5.5.270.0170.04720.94
5.5.260.0130.08020.76
5.5.250.0200.07720.68
5.5.240.0200.07320.15
5.4.450.0200.06719.61
5.4.440.0330.06019.32
5.4.430.0300.06719.53
5.4.420.0270.06019.56
5.4.410.0400.07019.19
5.4.400.0300.04719.21
5.4.390.0330.05719.26
5.4.380.0430.07318.52
5.4.370.0270.06018.79
5.4.360.0630.05318.68
5.4.350.0470.05718.78
5.4.340.0230.06718.58
5.4.320.0060.03712.45
5.4.310.0080.03612.45
5.4.300.0060.03812.45
5.4.290.0110.04012.45
5.4.280.0070.03412.35
5.4.270.0130.03612.35
5.4.260.0040.04112.35
5.4.250.0060.04112.35
5.4.240.0090.03212.35
5.4.230.0080.03812.34
5.4.220.0090.03212.34
5.4.210.0070.03412.34
5.4.200.0080.03612.34
5.4.190.0050.03912.34
5.4.180.0060.03712.34
5.4.170.0070.03512.35
5.4.160.0080.04112.35
5.4.150.0080.03412.34
5.4.140.0070.03512.03
5.4.130.0040.03712.02
5.4.120.0060.03511.97
5.4.110.0070.03611.96
5.4.100.0080.03211.97
5.4.90.0060.03711.97
5.4.80.0060.03711.96
5.4.70.0060.03411.96
5.4.60.0060.03611.96
5.4.50.0030.03911.96
5.4.40.0080.04511.95
5.4.30.0060.03611.95
5.4.20.0050.04011.95
5.4.10.0070.03611.95
5.4.00.0040.04011.44
5.3.290.0090.04112.80
5.3.280.0050.03912.71
5.3.270.0090.03612.72
5.3.260.0090.03512.72
5.3.250.0060.03712.72
5.3.240.0050.03812.72
5.3.230.0070.03612.71
5.3.220.0050.03712.68
5.3.210.0050.03912.68
5.3.200.0090.04112.68
5.3.190.0080.03512.68
5.3.180.0070.03412.68
5.3.170.0090.03312.67
5.3.160.0090.03412.67
5.3.150.0050.03812.68
5.3.140.0110.03912.66
5.3.130.0070.03912.66
5.3.120.0070.04212.66
5.3.110.0050.03912.66
5.3.100.0030.03912.12
5.3.90.0050.04212.09
5.3.80.0110.03612.08
5.3.70.0050.03612.07
5.3.60.0030.04412.06
5.3.50.0060.03512.00
5.3.40.0060.03512.00
5.3.30.0040.03711.94
5.3.20.0090.03811.72
5.3.10.0060.03511.69
5.3.00.0060.03711.68
5.2.170.0040.0419.18
5.2.160.0070.0349.18
5.2.150.0070.0299.18
5.2.140.0050.0309.17
5.2.130.0040.0309.14
5.2.120.0070.0269.14
5.2.110.0070.0269.14
5.2.100.0060.0279.14
5.2.90.0060.0289.14
5.2.80.0020.0339.13
5.2.70.0040.0319.13
5.2.60.0050.0299.09
5.2.50.0070.0289.05
5.2.40.0050.0289.03
5.2.30.0040.0309.01
5.2.20.0060.0279.00
5.2.10.0040.0298.92
5.2.00.0050.0298.78
5.1.60.0060.0228.07
5.1.50.0030.0298.06
5.1.40.0040.0278.04
5.1.30.0050.0278.39
5.1.20.0050.0278.41
5.1.10.0030.0288.14
5.1.00.0060.0248.14
5.0.50.0060.0236.63
5.0.40.0070.0256.48
5.0.30.0040.0326.30
5.0.20.0030.0226.27
5.0.10.0050.0196.25
5.0.00.0030.0316.24
4.4.90.0030.0154.78
4.4.80.0010.0174.76
4.4.70.0020.0164.75
4.4.60.0040.0144.75
4.4.50.0020.0174.77
4.4.40.0030.0244.71
4.4.30.0020.0164.76
4.4.20.0010.0174.85
4.4.10.0030.0154.85
4.4.00.0050.0284.76
4.3.110.0010.0184.67
4.3.100.0050.0124.66
4.3.90.0010.0164.64
4.3.80.0030.0244.58
4.3.70.0040.0134.63
4.3.60.0040.0134.63
4.3.50.0030.0154.63
4.3.40.0040.0224.54
4.3.30.0040.0143.29
4.3.20.0010.0163.27
4.3.10.0000.0173.23
4.3.00.0000.0236.93

preferences:
46.77 ms | 401 KiB | 5 Q