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 // 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)
8.3.60.0130.01018.31
8.3.50.0130.00521.14
8.3.40.0040.01118.84
8.3.30.0140.00020.11
8.3.20.0000.00720.21
8.3.10.0040.00422.09
8.3.00.0080.00022.38
8.2.180.0140.00317.00
8.2.170.0080.00522.96
8.2.160.0110.00320.53
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0090.00926.16
8.2.120.0100.00017.79
8.2.110.0040.00420.93
8.2.100.0060.00617.91
8.2.90.0040.00419.23
8.2.80.0040.00417.97
8.2.70.0000.00917.63
8.2.60.0050.00317.80
8.2.50.0030.00618.10
8.2.40.0080.00418.03
8.2.30.0070.00018.07
8.2.20.0040.00417.72
8.2.10.0000.00817.70
8.2.00.0000.00717.69
8.1.280.0040.01125.92
8.1.270.0040.01124.66
8.1.260.0050.00326.35
8.1.250.0040.00428.09
8.1.240.0000.00923.87
8.1.230.0060.00617.77
8.1.220.0030.00617.74
8.1.210.0090.00018.77
8.1.200.0000.00917.36
8.1.190.0080.00017.22
8.1.180.0040.00418.10
8.1.170.0000.00818.32
8.1.160.0000.00722.15
8.1.150.0040.00418.63
8.1.140.0000.00717.39
8.1.130.0000.00717.75
8.1.120.0000.00817.38
8.1.110.0030.00617.33
8.1.100.0030.00617.39
8.1.90.0080.00017.44
8.1.80.0000.00717.42
8.1.70.0000.00717.38
8.1.60.0060.00317.62
8.1.50.0040.00417.59
8.1.40.0040.00417.54
8.1.30.0000.00817.47
8.1.20.0000.00817.59
8.1.10.0070.00017.57
8.1.00.0000.00817.43
8.0.300.0030.00618.77
8.0.290.0050.00216.63
8.0.280.0040.00418.46
8.0.270.0000.00717.11
8.0.260.0060.00016.84
8.0.250.0030.00316.86
8.0.240.0080.00016.90
8.0.230.0040.00417.01
8.0.220.0030.00316.80
8.0.210.0040.00416.91
8.0.200.0050.00216.96
8.0.190.0040.00716.98
8.0.180.0040.00416.81
8.0.170.0000.00716.89
8.0.160.0000.00716.79
8.0.150.0070.00016.76
8.0.140.0000.00716.89
8.0.130.0000.00513.29
8.0.120.0030.00516.82
8.0.110.0000.00816.91
8.0.100.0040.00416.72
8.0.90.0070.00016.80
8.0.80.0070.01016.86
8.0.70.0000.00816.73
8.0.60.0040.00416.76
8.0.50.0050.00317.02
8.0.30.0060.01217.08
8.0.20.0110.00817.40
8.0.10.0040.00416.91
8.0.00.0130.00516.76
7.4.330.0000.00515.00
7.4.320.0050.00316.52
7.4.300.0030.00316.63
7.4.290.0030.00616.48
7.4.280.0030.00516.56
7.4.270.0000.00616.43
7.4.260.0000.00816.62
7.4.250.0000.00716.42
7.4.240.0020.00516.58
7.4.230.0070.00016.46
7.4.220.0130.00916.64
7.4.210.0060.00816.54
7.4.200.0040.00416.61
7.4.190.0030.00316.46
7.4.160.0080.00816.49
7.4.150.0110.01317.40
7.4.140.0100.00717.86
7.4.130.0110.00616.57
7.4.120.0130.00516.47
7.4.110.0160.00316.49
7.4.100.0190.00016.57
7.4.90.0090.00916.42
7.4.80.0170.00619.39
7.4.70.0120.00316.55
7.4.60.0060.01016.43
7.4.50.0000.00816.20
7.4.40.0120.00322.77
7.4.30.0120.00516.58
7.4.00.0090.00614.71
7.3.330.0060.00013.20
7.3.320.0000.00513.22
7.3.310.0030.00316.35
7.3.300.0000.00716.22
7.3.290.0100.00316.38
7.3.280.0100.00616.34
7.3.270.0110.00517.40
7.3.260.0100.00716.34
7.3.250.0110.00816.30
7.3.240.0130.00316.29
7.3.230.0060.01116.39
7.3.210.0160.00616.40
7.3.200.0090.01219.39
7.3.190.0130.01016.47
7.3.180.0120.00316.47
7.3.170.0100.00716.45
7.3.160.0100.01316.42
7.3.120.0000.01314.75
7.2.330.0150.00316.81
7.2.320.0120.01216.80
7.2.310.0080.01116.79
7.2.300.0120.00916.76
7.2.290.0100.00716.33
7.2.60.0000.01216.88
7.2.00.0030.01319.39
7.1.200.0060.00715.74
7.1.100.0080.00417.94
7.1.70.0030.01217.26
7.1.60.0070.01819.43
7.1.50.0030.01216.73
7.1.00.0000.03722.33
7.0.200.0000.01016.75
7.0.140.0030.07722.09
7.0.100.0100.08319.94
7.0.90.0170.07019.98
7.0.80.0070.08719.96
7.0.70.0100.04719.94
7.0.60.0130.07720.09
7.0.50.0370.08020.27
7.0.40.0100.07020.08
7.0.30.0100.06020.13
7.0.20.0170.07719.95
7.0.10.0100.09320.16
7.0.00.0100.06720.05
5.6.280.0100.06721.11
5.6.250.0070.08720.73
5.6.240.0270.06320.69
5.6.230.0070.05020.75
5.6.220.0100.08320.68
5.6.210.0170.06320.63
5.6.200.0130.08021.18
5.6.190.0070.07321.09
5.6.180.0070.07721.09
5.6.170.0100.08721.01
5.6.160.0070.08321.02
5.6.150.0100.07020.96
5.6.140.0070.08321.01
5.6.130.0170.05021.11
5.6.120.0100.08021.13
5.6.110.0130.08021.04
5.6.100.0100.08321.02
5.6.90.0100.07720.95
5.6.80.0100.05320.41
5.6.70.0030.08020.40
5.6.60.0200.06720.39
5.6.50.0100.07320.56
5.6.40.0130.06320.37
5.6.30.0070.08020.45
5.6.20.0130.05320.46
5.6.10.0030.08020.31
5.6.00.0170.07720.45
5.5.380.0130.06320.43
5.5.370.0100.07320.43
5.5.360.0130.08320.45
5.5.350.0170.07320.34
5.5.340.0130.08020.89
5.5.330.0100.08320.88
5.5.320.0030.08720.87
5.5.310.0130.07320.79
5.5.300.0100.04720.93
5.5.290.0200.07020.82
5.5.280.0100.06320.76
5.5.270.0070.08720.77
5.5.260.0100.08020.87
5.5.250.0070.08320.68
5.5.240.0070.07720.23
5.5.230.0130.07319.99
5.5.220.0100.07720.14
5.5.210.0030.07320.28
5.5.200.0100.06720.16
5.5.190.0070.07320.25
5.5.180.0100.07720.22
5.5.160.0070.05320.12
5.5.150.0030.04020.11
5.5.140.0070.07320.16
5.5.130.0170.03020.18
5.5.120.0070.06019.98
5.5.110.0030.07020.11
5.5.100.0030.05320.17
5.5.90.0070.08020.10
5.5.80.0130.06720.06
5.5.70.0070.07720.09
5.5.60.0030.08019.94
5.5.50.0030.07720.09
5.5.40.0030.08720.08
5.5.30.0070.08320.11
5.5.20.0100.06719.93
5.5.10.0130.06720.04
5.5.00.0070.05320.11
5.4.450.0130.07319.35
5.4.440.0100.07319.46
5.4.430.0170.06319.27
5.4.420.0130.07319.53
5.4.410.0070.07019.29
5.4.400.0170.06719.16
5.4.390.0070.04718.88
5.4.380.0030.07319.16
5.4.370.0070.07019.20
5.4.360.0070.07719.04
5.4.350.0070.07019.04
5.4.340.0230.06319.14
5.4.320.0000.05019.21
5.4.310.0000.04319.13
5.4.300.0100.07019.03
5.4.290.0000.03719.02
5.4.280.0070.07719.04
5.4.270.0030.06319.05
5.4.260.0130.06718.89
5.4.250.0070.07018.87
5.4.240.0030.08319.02
5.4.230.0070.08319.04
5.4.220.0070.06719.13
5.4.210.0100.06018.84
5.4.200.0100.07019.04
5.4.190.0100.07719.04
5.4.180.0030.08018.94
5.4.170.0070.07019.17
5.4.160.0030.08319.10
5.4.150.0170.07318.83
5.4.140.0030.07016.41
5.4.130.0030.05716.40
5.4.120.0030.05016.42
5.4.110.0030.05016.51
5.4.100.0030.07716.53
5.4.90.0100.07716.32
5.4.80.0070.07316.42
5.4.70.0070.05716.41
5.4.60.0070.05316.50
5.4.50.0030.07716.43
5.4.40.0170.06716.46
5.4.30.0130.06716.30
5.4.20.0100.07016.46
5.4.10.0070.06716.34
5.4.00.0030.07015.86
5.3.290.0000.06315.57
5.3.280.0130.06015.57
5.3.270.0100.07315.57
5.3.260.0030.05015.57
5.3.250.0030.07015.57
5.3.240.0100.06715.57
5.3.230.0100.07315.57
5.3.220.0000.07715.57
5.3.210.0130.07315.57
5.3.200.0100.06315.57
5.3.190.0100.04015.57
5.3.180.0070.07715.57
5.3.170.0130.06715.57
5.3.160.0070.07715.57
5.3.150.0070.04315.57
5.3.140.0130.06715.57
5.3.130.0030.04715.57
5.3.120.0070.06315.57
5.3.110.0100.05715.57
5.3.100.0070.07015.57
5.3.90.0100.06715.57
5.3.80.0100.05715.57
5.3.70.0030.05315.57
5.3.60.0100.07315.57
5.3.50.0070.07715.57
5.3.40.0070.07715.57
5.3.30.0070.07015.57
5.3.20.0070.06715.57
5.3.10.0100.06015.57
5.3.00.0100.05315.57
5.2.170.0030.03715.57
5.2.160.0100.05315.57
5.2.150.0170.05315.57
5.2.140.0070.06315.57
5.2.130.0070.05715.57
5.2.120.0100.05015.57
5.2.110.0130.05315.57
5.2.100.0070.06015.57
5.2.90.0070.05715.57
5.2.80.0000.04015.57
5.2.70.0030.06015.57
5.2.60.0030.05315.57
5.2.50.0070.04315.57
5.2.40.0070.05015.57
5.2.30.0030.06015.57
5.2.20.0000.06015.57
5.2.10.0100.04315.57
5.2.00.0070.05715.57
5.1.60.0070.05015.57
5.1.50.0030.05315.57
5.1.40.0070.05315.57
5.1.30.0100.04315.57
5.1.20.0070.05715.57
5.1.10.0000.06015.57
5.1.00.0030.05715.57
5.0.50.0030.04715.57
5.0.40.0030.04315.57
5.0.30.0000.07015.57
5.0.20.0000.04715.57
5.0.10.0030.04315.57
5.0.00.0030.06715.57
4.4.90.0000.03715.57
4.4.80.0030.03015.57
4.4.70.0030.03315.57
4.4.60.0070.03015.57
4.4.50.0030.03015.57
4.4.40.0070.05315.57
4.4.30.0070.03315.57
4.4.20.0030.03315.57
4.4.10.0030.03015.57
4.4.00.0100.05015.57
4.3.110.0030.03315.57
4.3.100.0000.03715.57
4.3.90.0000.03715.57
4.3.80.0000.04015.57
4.3.70.0030.02315.57
4.3.60.0070.03015.57
4.3.50.0030.03015.57
4.3.40.0000.04315.57
4.3.30.0030.03315.57
4.3.20.0000.02715.57
4.3.10.0030.03315.57
4.3.00.0030.02715.57

preferences:
41.82 ms | 401 KiB | 5 Q