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("°­©±ª±«©±«±©jbjc");*/ echo utf8_encode('????????????igmf');

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)
8.3.60.0110.00318.30
8.3.50.0160.00521.85
8.3.40.0030.00918.76
8.3.30.0100.01018.92
8.3.20.0040.00420.16
8.3.10.0050.00320.39
8.3.00.0040.00419.13
8.2.180.0140.00316.38
8.2.170.0140.00322.96
8.2.160.0100.00320.38
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0040.00426.16
8.2.120.0000.00722.22
8.2.110.0070.00322.07
8.2.100.0060.00619.63
8.2.90.0080.00319.09
8.2.80.0000.00817.97
8.2.70.0050.00317.38
8.2.60.0040.00417.93
8.2.50.0040.00418.07
8.2.40.0030.00618.09
8.2.30.0040.00419.50
8.2.20.0000.00917.63
8.2.10.0000.00817.84
8.2.00.0000.00817.52
8.1.280.0070.01125.92
8.1.270.0060.00323.92
8.1.260.0070.00026.35
8.1.250.0050.00228.09
8.1.240.0030.00623.79
8.1.230.0040.00719.07
8.1.220.0050.00317.74
8.1.210.0080.00018.77
8.1.200.0040.00717.10
8.1.190.0030.00617.10
8.1.180.0000.00718.10
8.1.170.0050.00518.57
8.1.160.0000.00822.00
8.1.150.0040.00418.70
8.1.140.0040.00417.41
8.1.130.0000.00617.73
8.1.120.0040.00417.22
8.1.110.0000.00717.30
8.1.100.0040.00417.33
8.1.90.0000.00817.29
8.1.80.0070.00017.22
8.1.70.0000.00717.21
8.1.60.0070.00017.48
8.1.50.0040.00417.29
8.1.40.0070.00017.27
8.1.30.0080.00017.47
8.1.20.0000.00817.57
8.1.10.0030.00617.32
8.1.00.0000.00717.33
8.0.300.0070.00018.77
8.0.290.0040.00416.58
8.0.280.0000.00718.28
8.0.270.0070.00017.09
8.0.260.0000.00617.19
8.0.250.0030.00316.87
8.0.240.0030.00316.92
8.0.230.0030.00316.82
8.0.220.0040.00416.63
8.0.210.0000.00716.79
8.0.200.0000.00816.80
8.0.190.0000.00816.70
8.0.180.0040.00416.69
8.0.170.0000.00816.79
8.0.160.0000.00716.63
8.0.150.0000.00716.75
8.0.140.0020.00516.65
8.0.130.0050.00013.10
8.0.120.0070.00016.73
8.0.110.0000.00716.71
8.0.100.0070.00016.55
8.0.90.0070.00016.64
8.0.80.0000.01416.69
8.0.70.0020.00516.77
8.0.60.0000.00816.82
8.0.50.0030.00316.59
8.0.30.0130.00617.06
8.0.20.0100.01117.40
8.0.10.0030.00316.78
8.0.00.0080.01316.54
7.4.330.0020.00215.00
7.4.320.0000.00616.35
7.4.300.0000.00616.50
7.4.290.0040.00416.31
7.4.280.0000.00816.35
7.4.270.0000.00716.38
7.4.260.0030.00316.46
7.4.250.0000.00716.31
7.4.240.0000.00716.35
7.4.230.0030.00616.47
7.4.220.0070.01416.46
7.4.210.0100.00316.41
7.4.200.0050.00216.55
7.4.160.0000.01716.30
7.4.150.0040.01317.40
7.4.140.0120.00817.86
7.4.130.0070.00916.30
7.4.120.0080.00816.35
7.4.110.0000.01516.63
7.4.100.0040.01516.54
7.4.90.0100.00716.23
7.4.80.0110.00516.50
7.4.70.0140.00716.42
7.4.60.0080.00816.36
7.4.50.0000.00816.52
7.4.40.0090.00616.34
7.4.30.0060.00916.64
7.4.00.0060.00914.79
7.3.330.0030.00413.03
7.3.320.0000.00512.86
7.3.310.0070.00016.05
7.3.300.0030.00316.17
7.3.290.0030.01216.02
7.3.280.0090.00916.13
7.3.270.0060.01217.40
7.3.260.0090.00916.13
7.3.250.0090.01016.21
7.3.240.0100.00716.41
7.3.230.0130.00316.44
7.3.210.0060.01016.29
7.3.200.0110.01019.39
7.3.190.0160.00416.39
7.3.180.0100.01016.02
7.3.170.0030.01316.43
7.3.160.0090.00916.31
7.3.00.0060.00616.50
7.2.330.0060.01516.29
7.2.320.0080.00816.48
7.2.310.0220.02216.42
7.2.300.0100.00616.30
7.2.290.0100.01416.30
7.2.130.0040.00716.93
7.2.120.0040.01116.59
7.2.110.0000.01416.64
7.2.100.0000.01216.78
7.2.90.0040.01117.03
7.2.80.0070.01016.91
7.2.70.0090.00316.91
7.2.60.0060.00616.85
7.2.50.0030.00616.62
7.2.40.0040.01116.94
7.2.30.0070.00316.58
7.2.20.0030.00616.88
7.2.10.0040.01116.69
7.2.00.0070.00917.98
7.1.250.0070.00315.46
7.1.240.0090.00615.73
7.1.230.0030.00715.63
7.1.220.0040.00715.63
7.1.210.0080.00315.35
7.1.200.0040.00715.28
7.1.190.0030.00715.56
7.1.180.0030.00715.70
7.1.170.0060.00615.42
7.1.160.0100.00315.63
7.1.150.0030.01015.47
7.1.140.0060.00915.65
7.1.130.0070.00715.49
7.1.120.0050.00515.57
7.1.110.0030.01015.72
7.1.100.0410.01115.85
7.1.90.0040.00715.87
7.1.80.0000.00915.57
7.1.70.0020.00716.24
7.1.60.0090.01017.46
7.1.50.0060.01116.23
7.1.40.0040.00815.82
7.1.30.0120.00315.67
7.1.20.0040.00415.55
7.1.10.0090.00015.77
7.1.00.0070.03719.01
7.0.330.0030.00715.35
7.0.320.0030.00715.23
7.0.310.0000.01115.38
7.0.300.0060.00615.16
7.0.290.0000.00715.26
7.0.280.0060.00915.34
7.0.270.0040.00415.14
7.0.260.0060.00315.33
7.0.250.0080.00315.04
7.0.240.0070.00715.41
7.0.230.0000.00715.43
7.0.220.0070.00415.33
7.0.210.0030.00615.14
7.0.200.0080.00215.92
7.0.190.0000.00715.02
7.0.180.0050.00315.31
7.0.170.0060.00615.30
7.0.160.0000.01115.33
7.0.150.0060.00315.29
7.0.140.0050.03818.67
7.0.130.0060.00315.41
7.0.120.0050.00515.21
7.0.110.0090.00015.29
7.0.100.0050.00515.17
7.0.90.0040.00415.31
7.0.80.0110.00415.15
7.0.70.0000.00815.18
7.0.60.0050.04317.62
7.0.50.0030.03816.68
7.0.40.0110.04016.92
7.0.30.0270.03816.68
7.0.20.0160.03016.85
7.0.10.0050.04816.77
7.0.00.0090.03916.81
5.6.380.0030.01014.06
5.6.370.0070.01014.22
5.6.360.0030.00714.29
5.6.350.0060.00613.70
5.6.340.0070.00714.17
5.6.330.0030.00913.77
5.6.320.0030.00714.38
5.6.310.0030.00713.83
5.6.300.0030.00914.29
5.6.290.0130.00014.02
5.6.280.0100.03517.65
5.6.270.0050.00514.34
5.6.260.0030.00714.45
5.6.250.0110.00314.08
5.6.240.0030.01314.09
5.6.230.0040.01114.03
5.6.220.0000.00814.23
5.6.210.0110.02417.30
5.6.200.0070.02216.10
5.6.190.0050.02717.03
5.6.180.0270.02717.35
5.6.170.0170.04217.25
5.6.160.0040.02717.34
5.6.150.0140.02016.18
5.6.140.0050.02816.20
5.6.130.0080.03516.32
5.6.120.0040.03217.61
5.6.110.0100.03117.48
5.6.100.0240.02617.59
5.6.90.0100.04417.59
5.6.80.0030.02517.21
5.6.70.0110.00414.18
5.6.60.0090.00614.15
5.6.50.0000.01213.79
5.6.40.0070.00713.88
5.6.30.0140.00314.22
5.6.20.0070.00414.28
5.6.10.0100.00714.19
5.6.00.0040.00814.07
5.5.380.0090.00311.60
5.5.370.0060.00611.60
5.5.360.0070.00011.60
5.5.350.0150.04016.06
5.5.340.0010.02314.78
5.5.330.0130.03516.00
5.5.320.0130.02615.94
5.5.310.0170.03815.95
5.5.300.0080.03714.77
5.5.290.0070.04014.73
5.5.280.0040.02216.24
5.5.270.0050.04316.22
5.5.260.0030.02916.20
5.5.250.0080.02516.13
5.5.240.0150.03315.93
5.5.230.0000.01211.60
5.5.220.0040.00411.60
5.5.210.0000.00811.60
5.5.200.0030.00311.60
5.5.190.0000.01011.60
5.5.180.0000.01011.60
5.5.170.0000.00911.60
5.5.160.0040.00811.60
5.5.150.0000.01011.60
5.5.140.0030.00711.60
5.5.130.0000.01311.60
5.5.120.0070.00311.60
5.5.110.0030.01011.60
5.5.100.0070.00411.60
5.5.90.0040.00811.60
5.5.80.0070.00311.60
5.5.70.0100.00011.60
5.5.60.0080.00411.60
5.5.50.0060.00311.60
5.5.40.0070.00311.60
5.5.30.0030.01011.60
5.5.20.0070.00311.60
5.5.10.0070.00011.60
5.5.00.0000.00711.60
5.4.450.0150.03015.44
5.4.440.0290.02715.54
5.4.430.0150.03615.54
5.4.420.0170.03215.59
5.4.410.0240.02615.47
5.4.400.0220.03015.21
5.4.390.0150.03315.19
5.4.380.0150.03515.19
5.4.370.0140.03515.11
5.4.360.0180.02815.09
5.4.350.0270.02715.19
5.4.340.0190.03515.19
5.4.330.0000.01111.60
5.4.320.0040.02512.03
5.4.310.0030.02312.03
5.4.300.0090.02312.03
5.4.290.0060.02312.03
5.4.280.0080.01911.97
5.4.270.0070.02011.97
5.4.260.0040.02511.97
5.4.250.0070.02111.97
5.4.240.0040.02111.97
5.4.230.0050.02111.97
5.4.220.0040.02211.97
5.4.210.0050.02411.97
5.4.200.0070.02311.97
5.4.190.0030.02711.97
5.4.180.0070.02011.97
5.4.170.0020.02411.97
5.4.160.0040.02511.97
5.4.150.0040.02411.97
5.4.140.0070.02311.81
5.4.130.0040.02711.81
5.4.120.0040.02111.79
5.4.110.0100.01611.79
5.4.100.0060.01911.78
5.4.90.0050.02211.78
5.4.80.0030.02511.78
5.4.70.0060.02011.78
5.4.60.0060.02411.78
5.4.50.0040.02311.78
5.4.40.0030.02211.78
5.4.30.0020.02111.77
5.4.20.0030.02111.77
5.4.10.0060.02311.77
5.4.00.0030.02511.52
5.3.290.0070.02612.20
5.3.280.0080.02312.16
5.3.270.0060.02512.16
5.3.260.0030.02512.16
5.3.250.0040.02712.16
5.3.240.0040.02112.16
5.3.230.0040.02312.16
5.3.220.0060.02312.14
5.3.210.0060.02412.14
5.3.200.0030.02512.14
5.3.190.0030.02612.14
5.3.180.0020.02512.14
5.3.170.0060.02112.13
5.3.160.0070.01912.14
5.3.150.0050.02512.14
5.3.140.0050.02412.13
5.3.130.0060.02112.13
5.3.120.0040.02212.13
5.3.110.0070.02112.13
5.3.100.0030.02711.86
5.3.90.0090.02311.84
5.3.80.0040.02211.84
5.3.70.0020.02311.84
5.3.60.0070.02011.83
5.3.50.0050.02511.80
5.3.40.0060.01911.80
5.3.30.0040.02111.77
5.3.20.0060.02211.66
5.3.10.0080.01911.64
5.3.00.0040.02411.64
5.2.170.0070.01910.39
5.2.160.0040.01710.39
5.2.150.0020.01810.39
5.2.140.0040.01710.39
5.2.130.0050.01910.37
5.2.120.0080.01510.37
5.2.110.0040.02010.37
5.2.100.0050.01610.37
5.2.90.0050.01610.37
5.2.80.0020.02010.36
5.2.70.0040.01810.37
5.2.60.0020.02310.34
5.2.50.0050.02110.33
5.2.40.0070.01710.32
5.2.30.0040.02110.30
5.2.20.0040.02010.30
5.2.10.0050.02210.26
5.2.00.0040.01910.19
5.1.60.0050.0149.83
5.1.50.0040.0179.83
5.1.40.0030.0169.82
5.1.30.0050.01710.00
5.1.20.0040.01610.00
5.1.10.0050.0159.87
5.1.00.0040.0189.87
5.0.50.0040.0139.11
5.0.40.0040.0149.04
5.0.30.0050.0208.94
5.0.20.0030.0168.93
5.0.10.0030.0138.92
5.0.00.0030.0188.91
4.4.90.0010.0148.19
4.4.80.0010.0108.18
4.4.70.0030.0098.18
4.4.60.0050.0078.18
4.4.50.0040.0098.19
4.4.40.0060.0138.16
4.4.30.0040.0098.18
4.4.20.0040.0148.22
4.4.10.0040.0118.22
4.4.00.0030.0148.18
4.3.110.0020.0118.13
4.3.100.0020.0098.13
4.3.90.0040.0078.12
4.3.80.0030.0178.09
4.3.70.0020.0088.12
4.3.60.0050.0078.12
4.3.50.0020.0098.12
4.3.40.0010.0188.07
4.3.30.0030.0097.44
4.3.20.0040.0097.43
4.3.10.0030.0097.41
4.3.00.0020.0149.28

preferences:
59.8 ms | 401 KiB | 5 Q