3v4l.org

run code in 300+ PHP versions simultaneously
<?php /* Challenge 1: Read and write to 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 4. No redefining $test 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; } } $test = new Test; // start editing here class Intercept { public function getKey($test) { $array = (array) $test; print_r($array); } } $intercept = new Intercept; $intercept->getKey($test); // 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)
8.3.60.0110.00418.30
8.3.50.0140.00621.98
8.3.40.0140.00318.59
8.3.30.0140.00019.14
8.3.20.0080.00020.24
8.3.10.0050.00323.61
8.3.00.0030.00619.38
8.2.180.0180.00418.41
8.2.170.0110.00322.96
8.2.160.0160.00320.11
8.2.150.0040.00424.18
8.2.140.0000.00824.66
8.2.130.0050.00326.16
8.2.120.0070.00022.20
8.2.110.0060.00320.53
8.2.100.0080.00419.45
8.2.90.0040.00418.03
8.2.80.0050.00317.97
8.2.70.0050.00317.50
8.2.60.0040.00419.43
8.2.50.0000.00818.07
8.2.40.0000.00819.82
8.2.30.0060.00317.92
8.2.20.0050.00217.79
8.2.10.0040.00417.86
8.2.00.0000.00817.73
8.1.280.0060.01225.92
8.1.270.0040.00422.07
8.1.260.0050.00326.35
8.1.250.0000.00828.09
8.1.240.0060.00322.18
8.1.230.0000.01120.88
8.1.220.0000.00817.74
8.1.210.0000.00918.85
8.1.200.0060.00317.36
8.1.190.0050.00317.51
8.1.180.0030.00618.10
8.1.170.0090.00018.38
8.1.160.0040.00421.90
8.1.150.0000.00818.57
8.1.140.0000.00717.33
8.1.130.0000.00717.74
8.1.120.0000.00717.30
8.1.110.0070.00317.30
8.1.100.0040.00417.30
8.1.90.0000.00817.44
8.1.80.0000.00717.30
8.1.70.0000.00717.46
8.1.60.0090.00017.45
8.1.50.0040.00417.45
8.1.40.0030.00517.50
8.1.30.0000.00817.55
8.1.20.0040.00417.66
8.1.10.0040.00417.55
8.1.00.0020.00517.39
8.0.300.0070.00020.04
8.0.290.0040.00417.04
8.0.280.0070.00018.33
8.0.270.0030.00317.21
8.0.260.0000.00617.14
8.0.250.0000.00716.94
8.0.240.0040.00416.81
8.0.230.0030.00316.89
8.0.220.0040.00416.88
8.0.210.0030.00616.89
8.0.200.0000.00616.90
8.0.190.0000.00716.95
8.0.180.0040.00416.95
8.0.170.0080.00016.91
8.0.160.0000.00716.80
8.0.150.0040.00416.88
8.0.140.0000.00816.74
8.0.130.0040.00413.28
8.0.120.0040.00416.91
8.0.110.0040.00416.80
8.0.100.0070.00016.94
8.0.90.0070.00016.93
8.0.80.0100.01016.84
8.0.70.0040.00416.86
8.0.60.0000.00816.93
8.0.50.0000.00716.94
8.0.30.0070.01517.01
8.0.20.0120.00717.40
8.0.10.0030.00616.89
8.0.00.0090.00916.83
7.4.330.0020.00215.00
7.4.320.0030.00316.46
7.4.300.0070.00016.51
7.4.290.0030.00516.61
7.4.280.0080.00016.48
7.4.270.0040.00416.56
7.4.260.0070.00016.63
7.4.250.0030.00616.50
7.4.240.0060.00116.48
7.4.230.0000.00716.44
7.4.220.0090.00916.62
7.4.210.0110.00516.61
7.4.200.0030.00316.67
7.4.190.0000.00716.71
7.4.160.0060.01316.79
7.4.150.0030.01317.40
7.4.140.0090.00817.86
7.4.130.0050.01316.51
7.4.120.0090.00816.54
7.4.110.0090.01616.60
7.4.100.0060.01616.69
7.4.90.0210.01816.58
7.4.80.0160.00919.39
7.4.70.0110.00516.62
7.4.60.0100.00716.30
7.4.50.0070.00016.31
7.4.40.0030.01022.77
7.4.30.0100.00716.38
7.4.00.0000.01214.79
7.3.330.0030.00513.37
7.3.320.0050.00013.17
7.3.310.0080.00016.40
7.3.300.0000.00716.23
7.3.290.0060.00816.34
7.3.280.0070.01116.37
7.3.270.0000.01817.40
7.3.260.0180.00616.52
7.3.250.0150.00616.55
7.3.240.0060.00916.43
7.3.230.0070.01116.39
7.3.210.0110.00616.35
7.3.200.0070.01019.39
7.3.190.0100.01416.40
7.3.180.0100.00716.58
7.3.170.0060.00916.45
7.3.160.0060.01016.60
7.3.120.0090.00314.52
7.2.330.0100.00716.78
7.2.320.0070.01016.49
7.2.310.0090.00916.84
7.2.300.0180.00016.49
7.2.290.0060.01016.49
7.2.60.0300.01016.28
7.2.00.0030.00719.11
7.1.200.0080.00315.69
7.1.100.0120.00818.02
7.1.70.0030.01317.32
7.1.60.0110.01119.46
7.1.50.0030.01916.90
7.1.00.0030.07722.44
7.0.200.0000.00916.75
7.0.140.0100.06721.95
7.0.100.0130.07319.98
7.0.90.0100.07319.92
7.0.80.0030.08720.00
7.0.70.0230.07020.03
7.0.60.0230.07019.98
7.0.50.0030.04320.36
7.0.40.0070.03720.11
7.0.30.0100.03720.18
7.0.20.0030.03719.99
7.0.10.0000.04720.14
7.0.00.0100.04720.02
5.6.280.0130.06320.93
5.6.250.0100.05020.75
5.6.240.0030.08720.52
5.6.230.0070.06720.75
5.6.220.0130.03320.67
5.6.210.0070.05020.61
5.6.200.0030.09021.04
5.6.190.0130.07020.92
5.6.180.0030.03721.00
5.6.170.0030.07321.03
5.6.160.0100.08321.02
5.6.150.0000.08021.05
5.6.140.0130.07021.05
5.6.130.0030.06720.96
5.6.120.0130.03721.04
5.6.110.0170.06321.08
5.6.100.0130.07721.16
5.6.90.0030.09321.01
5.6.80.0070.06720.57
5.6.70.0030.05320.40
5.6.60.0170.06720.32
5.6.50.0100.04320.41
5.6.40.0030.05320.41
5.6.30.0070.06320.50
5.6.20.0100.06720.53
5.6.10.0100.06020.38
5.6.00.0100.03720.48
5.5.380.0030.05320.45
5.5.370.0070.06020.40
5.5.360.0000.08720.42
5.5.350.0070.03720.43
5.5.340.0030.04720.89
5.5.330.0130.07720.79
5.5.320.0070.08020.74
5.5.310.0100.08020.89
5.5.300.0170.08020.63
5.5.290.0070.04320.88
5.5.280.0070.07320.65
5.5.270.0130.08020.80
5.5.260.0070.06020.93
5.5.250.0070.06320.71
5.5.240.0070.04720.04
5.5.230.0230.06020.12
5.5.220.0030.06720.14
5.5.210.0230.03020.25
5.5.200.0100.07020.19
5.5.190.0100.03720.22
5.5.180.0030.05020.13
5.5.160.0030.04020.24
5.5.150.0030.06320.24
5.5.140.0170.03720.19
5.5.130.0070.05020.08
5.5.120.0100.07720.13
5.5.110.0170.06720.15
5.5.100.0100.05320.12
5.5.90.0100.06020.12
5.5.80.0070.07020.09
5.5.70.0070.05720.07
5.5.60.0070.06020.03
5.5.50.0130.06320.16
5.5.40.0100.06320.20
5.5.30.0130.07020.08
5.5.20.0000.09020.03
5.5.10.0100.04320.01
5.5.00.0100.05719.98
5.4.450.0070.07019.45
5.4.440.0030.06319.35
5.4.430.0070.05019.37
5.4.420.0170.07019.45
5.4.410.0070.06019.04
5.4.400.0070.08019.03
5.4.390.0070.04319.03
5.4.380.0130.06719.04
5.4.370.0200.06319.18
5.4.360.0000.04319.18
5.4.350.0070.03719.21
5.4.340.0070.06319.05
5.4.320.0030.04019.03
5.4.310.0030.05019.09
5.4.300.0100.06319.17
5.4.290.0000.06719.18
5.4.280.0100.07319.14
5.4.270.0070.05719.08
5.4.260.0100.06019.12
5.4.250.0030.04718.96
5.4.240.0100.07319.09
5.4.230.0170.06319.11
5.4.220.0100.04319.03
5.4.210.0070.07719.17
5.4.200.0070.07019.02
5.4.190.0100.04018.86
5.4.180.0030.08319.02
5.4.170.0070.04018.88
5.4.160.0070.06319.11
5.4.150.0100.06719.02
5.4.140.0000.03716.39
5.4.130.0130.06316.50
5.4.120.0000.05316.46
5.4.110.0030.03316.49
5.4.100.0100.05016.56
5.4.90.0030.08016.32
5.4.80.0070.03316.40
5.4.70.0070.05316.47
5.4.60.0070.03016.46
5.4.50.0100.04316.29
5.4.40.0070.05016.46
5.4.30.0000.03716.30
5.4.20.0070.07016.48
5.4.10.0130.06716.50
5.4.00.0030.05715.89
5.3.290.0100.04315.74
5.3.280.0070.05315.74
5.3.270.0100.06315.74
5.3.260.0030.04015.74
5.3.250.0030.06715.74
5.3.240.0100.03015.74
5.3.230.0030.03715.74
5.3.220.0070.07015.74
5.3.210.0030.07715.74
5.3.200.0070.06315.74
5.3.190.0070.03715.74
5.3.180.0070.05715.74
5.3.170.0030.03315.74
5.3.160.0070.06715.74
5.3.150.0000.07715.74
5.3.140.0070.07015.74
5.3.130.0170.07015.74
5.3.120.0070.05715.74
5.3.110.0000.04715.74
5.3.100.0070.06715.74
5.3.90.0130.06715.74
5.3.80.0100.06015.74
5.3.70.0100.05015.74
5.3.60.0070.07315.74
5.3.50.0000.04715.74
5.3.40.0130.07315.74
5.3.30.0030.05315.74
5.3.20.0130.04015.74
5.3.10.0030.03015.74
5.3.00.0070.06715.74
5.2.170.0100.06315.74
5.2.160.0100.03715.74
5.2.150.0100.05015.74
5.2.140.0070.06015.74
5.2.130.0130.04315.74
5.2.120.0070.03315.74
5.2.110.0070.04015.74
5.2.100.0030.02715.74
5.2.90.0100.06015.74
5.2.80.0030.06315.74
5.2.70.0070.05015.74
5.2.60.0130.05315.74
5.2.50.0000.03015.74
5.2.40.0030.02315.74
5.2.30.0070.06015.74
5.2.20.0000.06715.74
5.2.10.0000.04015.74
5.2.00.0070.03015.74
5.1.60.0000.04015.74
5.1.50.0170.02015.74
5.1.40.0070.02715.74
5.1.30.0030.05315.74
5.1.20.0030.06015.74
5.1.10.0000.03315.74
5.1.00.0030.05015.74
5.0.50.0000.02015.74
5.0.40.0000.02315.74
5.0.30.0030.04315.74
5.0.20.0070.01315.74
5.0.10.0030.04315.74
5.0.00.0030.02715.74
4.4.90.0030.03315.74
4.4.80.0030.03315.74
4.4.70.0030.03715.74
4.4.60.0000.03715.74
4.4.50.0000.02715.74
4.4.40.0070.04015.74
4.4.30.0000.01715.74
4.4.20.0000.02315.74
4.4.10.0000.03015.74
4.4.00.0030.03715.74
4.3.110.0000.03715.74
4.3.100.0000.03715.74
4.3.90.0100.02015.74
4.3.80.0000.05715.74
4.3.70.0000.03315.74
4.3.60.0030.03015.74
4.3.50.0000.03715.74
4.3.40.0000.02715.74
4.3.30.0030.02015.74
4.3.20.0000.03715.74
4.3.10.0000.03315.74
4.3.00.0030.03715.74

preferences:
61.7 ms | 401 KiB | 5 Q