3v4l.org

run code in 300+ PHP versions simultaneously
<?php /* Challenge 1: Modify Test::$secret before it's output. Rules:: 1. No use of Reflection API / runkit extension 2. No stopping execution before Test::run() 3. No Exceptions or PHP errors / warnings notices allowed Hints: 1. Caesar 2. Magic methods 3. Requires a new feature of PHP 5.4 */ class Test { private $secret = 'Nyy lbhe Onfr ner orybat gb hf.'; private $callback; final public function run() { call_user_func($this->callback); return $this->secret . PHP_EOL; } public function __set($k, $v) { $key = $v[($v[$v])]; // $v is some kind of weird array $value = $v(); // and a callback! $this->{$key} = $value; } } $test = new Test; // start editing here $test->callback = 11; // end editing here echo $test->run();

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)
8.3.60.0140.00718.39
8.3.50.0120.00821.20
8.3.40.0090.00618.96
8.3.30.0070.00720.17
8.3.20.0000.00720.16
8.3.10.0080.00021.09
8.3.00.0080.00022.64
8.2.180.0100.01017.00
8.2.170.0090.00622.96
8.2.160.0070.00720.39
8.2.150.0030.00624.18
8.2.140.0080.00024.66
8.2.130.0040.00426.16
8.2.120.0080.00020.75
8.2.110.0110.01119.45
8.2.100.0030.00717.72
8.2.90.0080.00019.26
8.2.80.0000.00817.97
8.2.70.0100.00017.63
8.2.60.0040.00417.93
8.2.50.0090.00018.07
8.2.40.0050.00318.21
8.2.30.0060.00319.50
8.2.20.0070.00017.74
8.2.10.0000.00817.82
8.2.00.0080.00017.64
8.1.280.0100.00725.92
8.1.270.0060.00323.99
8.1.260.0070.00026.35
8.1.250.0040.00428.09
8.1.240.0040.00422.45
8.1.230.0080.00320.98
8.1.220.0000.00818.77
8.1.210.0040.00419.05
8.1.200.0040.00417.23
8.1.190.0040.00417.39
8.1.180.0030.00518.10
8.1.170.0060.00318.66
8.1.160.0070.00018.71
8.1.150.0040.00418.50
8.1.140.0040.00417.30
8.1.130.0070.00017.80
8.1.120.0000.00717.38
8.1.110.0000.00717.36
8.1.100.0030.00417.42
8.1.90.0000.00717.44
8.1.80.0030.00317.41
8.1.70.0070.00017.42
8.1.60.0030.00517.60
8.1.50.0050.00217.53
8.1.40.0030.00517.51
8.1.30.0040.00417.59
8.1.20.0090.00017.64
8.1.10.0000.00717.50
8.1.00.0000.00817.57
8.0.300.0040.00419.95
8.0.290.0000.00816.93
8.0.280.0000.00718.40
8.0.270.0070.00017.21
8.0.260.0000.00716.83
8.0.250.0000.00716.98
8.0.240.0030.00616.96
8.0.230.0000.00716.96
8.0.220.0000.00716.87
8.0.210.0000.00716.93
8.0.200.0040.00416.93
8.0.190.0050.00316.86
8.0.180.0040.00416.91
8.0.170.0000.00716.90
8.0.160.0040.00416.95
8.0.150.0000.00816.72
8.0.140.0000.00716.77
8.0.130.0030.00313.30
8.0.120.0030.00516.77
8.0.110.0040.00416.85
8.0.100.0080.00016.94
8.0.90.0000.00716.97
8.0.80.0000.01616.90
8.0.70.0070.00016.86
8.0.60.0030.00516.80
8.0.50.0000.00716.74
8.0.30.0120.01116.83
8.0.20.0090.00917.40
8.0.10.0040.00417.09
8.0.00.0090.01116.56
7.4.330.0050.00016.67
7.4.320.0060.00016.45
7.4.300.0030.00316.61
7.4.290.0070.00016.53
7.4.280.0040.00416.50
7.4.270.0030.00316.64
7.4.260.0050.00013.20
7.4.250.0000.00816.44
7.4.240.0030.00416.57
7.4.230.0050.00216.46
7.4.220.0140.00716.56
7.4.210.0080.00816.63
7.4.200.0070.00016.59
7.4.190.0040.00416.70
7.4.160.0090.01216.50
7.4.150.0110.00717.40
7.4.140.0130.00817.86
7.4.130.0170.01516.44
7.4.120.0100.00616.53
7.4.110.0130.00316.51
7.4.100.0110.00816.61
7.4.90.0110.01116.51
7.4.80.0060.00919.39
7.4.70.0070.01316.44
7.4.60.0120.00616.54
7.4.50.0030.00616.38
7.4.40.0070.01122.77
7.4.30.0180.00316.52
7.4.00.0070.00914.91
7.3.330.0000.00613.26
7.3.320.0000.00713.12
7.3.310.0040.00416.23
7.3.300.0040.00416.22
7.3.290.0070.00716.33
7.3.280.0080.00916.40
7.3.270.0030.01317.40
7.3.260.0120.01018.24
7.3.250.0110.00916.44
7.3.240.0090.00916.58
7.3.230.0090.00916.39
7.3.210.0100.00716.35
7.3.200.0160.00619.39
7.3.190.0140.00316.57
7.3.180.0070.01416.47
7.3.170.0160.00716.36
7.3.160.0110.00616.30
7.3.120.0050.01214.89
7.3.110.0030.01414.84
7.3.100.0060.00914.46
7.3.90.0030.00814.92
7.3.80.0000.00914.85
7.3.70.0090.00614.61
7.3.60.0090.00614.89
7.3.50.0090.00614.94
7.3.40.0000.01414.96
7.3.30.0080.00814.87
7.3.20.0000.01016.63
7.3.10.0110.00416.88
7.3.00.0040.01116.68
7.2.330.0150.00316.57
7.2.320.0110.00716.68
7.2.310.0130.01016.75
7.2.300.0100.00716.59
7.2.290.0160.00316.66
7.2.250.0110.00714.81
7.2.240.0040.01115.01
7.2.230.0030.00615.18
7.2.220.0100.00314.94
7.2.210.0070.01015.17
7.2.200.0100.00714.81
7.2.190.0100.00715.23
7.2.180.0070.01015.14
7.2.170.0000.01314.67
7.2.130.0030.01016.78
7.2.120.0130.00316.83
7.2.110.0000.01317.00
7.2.100.0060.00916.97
7.2.90.0120.00016.70
7.2.80.0060.00916.90
7.2.70.0030.01416.59
7.2.60.0020.01016.61
7.2.50.0040.01116.91
7.2.40.0080.00516.73
7.2.30.0050.00516.73
7.2.20.0030.00616.86
7.2.10.0040.01216.66
7.2.00.0050.00717.84
7.1.330.0000.01115.94
7.1.320.0110.00415.78
7.1.310.0120.00615.75
7.1.300.0120.00015.84
7.1.290.0030.00615.80
7.1.280.0100.00315.51
7.1.270.0140.00315.61
7.1.260.0000.01015.55
7.1.250.0080.00515.81
7.1.240.0030.01015.52
7.1.230.0060.00915.89
7.1.220.0070.00315.80
7.1.210.0070.00715.69
7.1.200.0030.01115.65
7.1.190.0090.00015.63
7.1.180.0070.00715.82
7.1.170.0030.01315.72
7.1.160.0030.00715.73
7.1.150.0030.00915.84
7.1.140.0070.00315.78
7.1.130.0060.00815.83
7.1.120.0090.00315.92
7.1.110.0080.00315.85
7.1.100.0090.00317.08
7.1.90.0090.00615.77
7.1.80.0100.00615.88
7.1.70.0010.00916.41
7.1.60.0050.01017.53
7.1.50.0110.00716.43
7.1.40.0100.00315.69
7.1.30.0100.00315.84
7.1.20.0030.01015.55
7.1.10.0040.01115.78
7.1.00.0030.02119.09
7.0.330.0100.00315.03
7.0.320.0030.01015.16
7.0.310.0040.00715.24
7.0.300.0000.01415.30
7.0.290.0100.00015.29
7.0.280.0000.01515.42
7.0.270.0070.00715.15
7.0.260.0040.00715.27
7.0.250.0090.00315.52
7.0.240.0060.00615.42
7.0.230.0060.00315.26
7.0.220.0030.01015.15
7.0.210.0080.00015.46
7.0.200.0000.00815.92
7.0.190.0040.00815.24
7.0.180.0070.00715.48
7.0.170.0040.01115.31
7.0.160.0030.00615.15
7.0.150.0070.00715.33
7.0.140.0090.03718.75
7.0.130.0030.00915.36
7.0.120.0100.00315.13
7.0.110.0100.00315.32
7.0.100.0130.04417.52
7.0.90.0290.03517.56
7.0.80.0050.04717.71
7.0.70.0120.04017.55
7.0.60.0190.04017.64
7.0.50.0050.04417.89
7.0.40.0020.04816.79
7.0.30.0100.04016.79
7.0.20.0130.04016.66
7.0.10.0090.04616.88
7.0.00.0120.04016.77
5.6.380.0100.00714.61
5.6.370.0060.00914.16
5.6.360.0060.00914.09
5.6.350.0000.01014.25
5.6.340.0060.00614.03
5.6.330.0030.00614.21
5.6.320.0060.00914.32
5.6.310.0030.01014.64
5.6.300.0060.00314.68
5.6.290.0090.00314.32
5.6.280.0050.03817.82
5.6.270.0110.00314.43
5.6.260.0090.00914.40
5.6.250.0170.02417.57
5.6.240.0070.04917.58
5.6.230.0030.05117.43
5.6.220.0030.04517.57
5.6.210.0110.03817.49
5.6.200.0100.04217.86
5.6.190.0020.04917.57
5.6.180.0120.03317.77
5.6.170.0120.03317.63
5.6.160.0070.02517.67
5.6.150.0080.04617.81
5.6.140.0070.02817.56
5.6.130.0070.02217.72
5.6.120.0050.05017.77
5.6.110.0070.03017.68
5.6.100.0060.03517.74
5.6.90.0130.04017.75
5.6.80.0080.02717.46
5.6.70.0060.03017.44
5.6.60.0100.03817.31
5.6.50.0180.03317.43
5.6.40.0070.04517.50
5.6.30.0030.04617.42
5.6.20.0100.03717.47
5.6.10.0080.04217.30
5.6.00.0080.04317.32
5.5.380.0060.04015.82
5.5.370.0020.02515.77
5.5.360.0060.02315.79
5.5.350.0050.02915.84
5.5.340.0080.04016.20
5.5.330.0110.03516.06
5.5.320.0070.04015.98
5.5.310.0030.04716.01
5.5.300.0050.04616.05
5.5.290.0080.04516.04
5.5.280.0050.04516.10
5.5.270.0000.04316.06
5.5.260.0080.03816.12
5.5.250.0060.04415.91
5.5.240.0100.03115.73
5.5.230.0080.02915.72
5.5.220.0090.04015.65
5.5.210.0080.04015.74
5.5.200.0050.04415.71
5.5.190.0130.03215.68
5.5.180.0070.04515.63
5.5.170.0070.00311.18
5.5.160.0030.03515.66
5.5.150.0070.02415.84
5.5.140.0050.03915.73
5.5.130.0150.02315.76
5.5.120.0030.02815.70
5.5.110.0030.04515.68
5.5.100.0040.03115.58
5.5.90.0070.04115.67
5.5.80.0090.02715.63
5.5.70.0060.04015.65
5.5.60.0060.02415.69
5.5.50.0070.04215.63
5.5.40.0030.03115.60
5.5.30.0050.02215.66
5.5.20.0060.03815.61
5.5.10.0060.04415.55
5.5.00.0070.04115.62
5.4.450.0050.03015.28
5.4.440.0030.04415.19
5.4.430.0090.02115.38
5.4.420.0090.04215.30
5.4.410.0080.04115.12
5.4.400.0080.03515.18
5.4.390.0070.04715.15
5.4.380.0040.04015.11
5.4.370.0030.03815.07
5.4.360.0030.04515.21
5.4.350.0030.04515.10
5.4.340.0050.03915.04
5.4.330.0050.00011.18
5.4.320.0030.03815.06
5.4.310.0070.03615.19
5.4.300.0030.03415.01
5.4.290.0070.03715.19
5.4.280.0030.03015.18
5.4.270.0080.03715.19
5.4.260.0050.02615.10
5.4.250.0070.03915.16
5.4.240.0070.03315.21
5.4.230.0020.04515.16
5.4.220.0070.03715.01
5.4.210.0080.02715.23
5.4.200.0150.02715.03
5.4.190.0070.02415.03
5.4.180.0050.04515.19
5.4.170.0060.03815.02
5.4.160.0050.03615.17
5.4.150.0050.03015.00
5.4.140.0040.02613.79
5.4.130.0050.03513.75
5.4.120.0070.03713.69
5.4.110.0000.03113.84
5.4.100.0080.04013.83
5.4.90.0080.03013.84
5.4.80.0090.03713.77
5.4.70.0160.02813.78
5.4.60.0110.03513.71
5.4.50.0060.03913.83
5.4.40.0060.03713.84
5.4.30.0060.04013.83
5.4.20.0110.03113.73
5.4.10.0080.03513.75
5.4.00.0100.03413.56
5.3.290.0000.03212.90
5.3.280.0050.02812.95
5.3.270.0020.03012.88
5.3.260.0070.02312.88
5.3.250.0060.03812.91
5.3.240.0110.03712.86
5.3.230.0050.04012.85
5.3.220.0070.02312.85
5.3.210.0050.03412.86
5.3.200.0020.03112.88
5.3.190.0050.02312.88
5.3.180.0030.04412.93
5.3.170.0180.02312.92
5.3.160.0080.04212.84
5.3.150.0090.03612.87
5.3.140.0090.03112.88
5.3.130.0050.04212.89
5.3.120.0080.03912.85
5.3.110.0070.03812.87
5.3.100.0030.04312.64
5.3.90.0040.02112.62
5.3.80.0030.02312.59
5.3.70.0100.03412.67
5.3.60.0070.03712.54
5.3.50.0020.03012.51
5.3.40.0050.02112.57
5.3.30.0050.01812.50
5.3.20.0070.03312.44
5.3.10.0050.04012.48
5.3.00.0020.03112.42
5.2.170.0030.03311.22
5.2.160.0100.03011.23
5.2.150.0020.02011.13
5.2.140.0030.03511.09
5.2.130.0050.03311.15
5.2.120.0070.02811.21
5.2.110.0020.03811.17
5.2.100.0100.01311.21
5.2.90.0050.03211.19
5.2.80.0050.01711.13
5.2.70.0000.02111.14
5.2.60.0040.02211.14
5.2.50.0020.01911.14
5.2.40.0020.01711.09
5.2.30.0070.01511.15
5.2.20.0050.01711.10
5.2.10.0050.01311.00
5.2.00.0020.01810.96
5.1.60.0050.01610.60
5.1.50.0030.01310.61
5.1.40.0000.01510.56
5.1.30.0020.01510.71
5.1.20.0020.01610.74
5.1.10.0020.01510.65
5.1.00.0060.01510.62
5.0.50.0040.0109.90
5.0.40.0000.0149.85
5.0.30.0020.0179.64
5.0.20.0050.0079.72
5.0.10.0050.0089.72
5.0.00.0010.0159.64
4.4.90.0040.0099.64
4.4.80.0000.0109.64
4.4.70.0050.0089.64
4.4.60.0040.0089.64
4.4.50.0000.0119.64
4.4.40.0020.0159.64
4.4.30.0020.0109.64
4.4.20.0020.0109.64
4.4.10.0030.0079.64
4.4.00.0020.0129.64
4.3.110.0020.0109.64
4.3.100.0020.0109.64
4.3.90.0000.0099.64
4.3.80.0010.0189.64
4.3.70.0030.0089.64
4.3.60.0030.0089.64
4.3.50.0030.0139.64
4.3.40.0020.0119.64
4.3.30.0000.0109.64
4.3.20.0010.0139.64
4.3.10.0020.0139.64
4.3.00.0040.0079.64

preferences:
47.19 ms | 401 KiB | 5 Q