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 $this->testy = $key; $value = $v(); // and a callback! $this->{$key} = $value; } } $test = new Test; // start editing here class Intercept { public function getKey($test) { $array = (array) $test; reset($array); $first_key = key($array); print_r($array[$first_key]); //$v = array(); //$v[$first_key] = 'blah'; //$blah = $v[$first_key]; $blah; $test->__set($array[$first_key] , $blah[$first_key] ); /* foreach($array as $k => $v) { print_r($k); print_r($v); } */ } } $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)
8.3.60.0100.01016.88
8.3.50.0220.00722.10
8.3.40.0070.01118.74
8.3.30.0110.00419.22
8.3.20.0070.00020.16
8.3.10.0000.00823.70
8.3.00.0080.00019.38
8.2.180.0150.00618.54
8.2.170.0120.00622.96
8.2.160.0100.00720.41
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0110.00726.16
8.2.120.0070.00022.08
8.2.110.0060.00322.04
8.2.100.0090.00317.84
8.2.90.0040.00419.22
8.2.80.0000.00917.97
8.2.70.0080.00017.63
8.2.60.0040.00417.80
8.2.50.0080.00618.07
8.2.40.0030.00619.88
8.2.30.0030.00618.09
8.2.20.0030.00517.88
8.2.10.0040.00418.14
8.2.00.0030.00517.64
8.1.280.0100.01025.92
8.1.270.0030.00623.75
8.1.260.0000.00826.35
8.1.250.0040.00428.09
8.1.240.0060.00323.72
8.1.230.0040.00819.24
8.1.220.0060.00317.78
8.1.210.0000.00818.77
8.1.200.0060.00317.25
8.1.190.0000.00917.41
8.1.180.0000.00818.10
8.1.170.0030.00518.46
8.1.160.0070.00021.89
8.1.150.0000.00918.52
8.1.140.0050.00217.32
8.1.130.0000.00717.90
8.1.120.0070.00017.32
8.1.110.0070.00317.30
8.1.100.0070.00017.43
8.1.90.0070.00017.47
8.1.80.0080.00017.42
8.1.70.0000.00817.35
8.1.60.0030.00617.57
8.1.50.0030.00517.54
8.1.40.0000.00817.60
8.1.30.0050.00317.59
8.1.20.0080.00017.73
8.1.10.0040.00417.55
8.1.00.0040.00417.50
8.0.300.0000.00820.79
8.0.290.0000.00817.03
8.0.280.0030.00318.31
8.0.270.0080.00017.14
8.0.260.0000.00717.22
8.0.250.0040.00416.88
8.0.240.0000.00717.05
8.0.230.0000.00716.96
8.0.220.0070.00016.78
8.0.210.0050.00516.93
8.0.200.0000.00616.96
8.0.190.0030.00617.02
8.0.180.0000.01216.78
8.0.170.0070.00016.93
8.0.160.0000.00716.89
8.0.150.0000.00716.77
8.0.140.0000.00716.82
8.0.130.0060.00013.38
8.0.120.0040.00416.86
8.0.110.0030.00516.99
8.0.100.0000.00716.80
8.0.90.0040.00416.98
8.0.80.0070.00816.91
8.0.70.0030.00516.86
8.0.60.0000.00816.81
8.0.50.0070.00016.91
8.0.30.0080.01016.96
8.0.20.0130.00617.40
8.0.10.0080.00016.84
8.0.00.0130.00816.72
7.4.330.0050.00015.00
7.4.320.0000.00716.60
7.4.300.0000.00816.61
7.4.290.0030.00316.52
7.4.280.0030.00316.50
7.4.270.0030.00316.54
7.4.260.0030.00516.65
7.4.250.0040.00416.59
7.4.240.0020.00516.52
7.4.230.0000.00716.70
7.4.220.0120.00616.66
7.4.210.0080.00716.51
7.4.200.0040.00416.71
7.4.190.0030.00316.80
7.4.160.0080.00816.48
7.4.150.0130.01317.40
7.4.140.0120.00717.86
7.4.130.0110.00616.54
7.4.120.0120.00916.54
7.4.110.0060.01516.51
7.4.100.0100.01316.41
7.4.90.0100.00616.71
7.4.80.0060.01119.39
7.4.70.0040.01216.63
7.4.60.0130.00316.48
7.4.50.0000.00916.47
7.4.40.0030.01022.77
7.4.30.0150.00416.76
7.4.00.0090.00814.96
7.3.330.0050.00013.45
7.3.320.0030.00313.45
7.3.310.0040.00416.29
7.3.300.0030.00516.31
7.3.290.0030.01016.40
7.3.280.0080.00816.37
7.3.270.0130.00617.40
7.3.260.0110.00616.37
7.3.250.0090.00916.48
7.3.240.0130.00716.44
7.3.230.0150.00816.60
7.3.210.0080.00916.55
7.3.200.0120.01119.39
7.3.190.0160.00616.41
7.3.180.0120.00616.52
7.3.170.0110.00516.45
7.3.160.0120.00816.46
7.3.120.0100.00514.70
7.3.110.0060.01214.54
7.3.100.0070.00714.73
7.3.90.0090.00914.63
7.3.80.0120.00614.89
7.3.70.0110.00414.84
7.3.60.0130.00314.62
7.3.50.0040.00814.71
7.3.40.0090.00614.86
7.3.30.0100.00314.75
7.3.20.0030.01016.70
7.3.10.0090.00516.77
7.3.00.0040.00816.62
7.2.330.0100.00716.79
7.2.320.0030.01616.79
7.2.310.0100.01016.77
7.2.300.0070.01316.88
7.2.290.0060.01216.48
7.2.250.0030.01714.95
7.2.240.0100.00715.05
7.2.230.0160.00315.07
7.2.220.0070.01115.13
7.2.210.0030.01015.36
7.2.200.0030.00615.13
7.2.190.0040.01415.04
7.2.180.0070.00715.18
7.2.170.0040.01115.20
7.2.130.0070.00816.81
7.2.120.0050.01217.00
7.2.110.0070.00816.91
7.2.100.0060.00916.81
7.2.90.0050.00717.11
7.2.80.0080.00716.95
7.2.70.0090.00617.08
7.2.60.0060.00616.90
7.2.50.0040.00917.07
7.2.40.0080.00417.02
7.2.30.0070.00617.08
7.2.20.0090.00517.13
7.2.10.0030.00816.75
7.2.00.0030.00817.84
7.1.330.0060.01015.88
7.1.320.0000.01215.78
7.1.310.0070.00715.88
7.1.300.0070.00715.55
7.1.290.0070.01015.82
7.1.280.0070.00715.80
7.1.270.0090.00615.81
7.1.260.0040.00715.83
7.1.250.0050.00715.86
7.1.200.0000.01215.77
7.1.100.0000.01318.08
7.1.70.0080.00017.13
7.1.60.0070.01519.46
7.1.50.0040.01117.05
7.1.00.0000.08022.54
7.0.200.0050.00316.72
7.0.140.0030.07321.97
7.0.100.0030.09719.93
7.0.90.0130.07319.84
7.0.80.0170.08019.95
7.0.70.0200.07319.96
7.0.60.0170.07720.05
7.0.50.0170.08020.38
7.0.40.0130.07720.00
7.0.30.0070.05320.06
7.0.20.0170.10020.07
7.0.10.0100.07720.07
7.0.00.0130.08319.90
5.6.280.0030.07021.14
5.6.250.0070.08020.59
5.6.240.0100.08320.66
5.6.230.0070.07320.59
5.6.220.0100.07320.51
5.6.210.0070.05720.62
5.6.200.0070.07321.02
5.6.190.0100.05021.10
5.6.180.0100.10321.05
5.6.170.0170.07321.05
5.6.160.0130.07021.08
5.6.150.0030.08321.07
5.6.140.0170.07721.06
5.6.130.0030.05321.03
5.6.120.0200.07021.00
5.6.110.0100.06720.98
5.6.100.0130.06321.00
5.6.90.0030.09721.00
5.6.80.0100.07020.39
5.6.70.0030.08020.51
5.6.60.0100.07720.44
5.6.50.0070.07720.46
5.6.40.0100.08020.35
5.6.30.0100.08020.41
5.6.20.0070.07020.39
5.6.10.0130.04020.32
5.6.00.0100.07720.24
5.5.380.0070.08320.48
5.5.370.0200.07020.38
5.5.360.0230.06720.27
5.5.350.0170.07320.39
5.5.340.0100.07720.80
5.5.330.0070.04720.90
5.5.320.0200.06020.83
5.5.310.0130.07320.90
5.5.300.0100.08320.80
5.5.290.0070.06720.79
5.5.280.0130.06720.74
5.5.270.0030.08720.69
5.5.260.0170.07720.78
5.5.250.0170.07720.57
5.5.240.0100.04720.13
5.5.230.0100.05020.14
5.5.220.0030.08020.14
5.5.210.0100.08020.21
5.5.200.0100.07020.05
5.5.190.0030.08320.23
5.5.180.0100.08020.25
5.5.160.0130.06720.20
5.5.150.0030.08020.19
5.5.140.0030.07720.20
5.5.130.0100.07720.11
5.5.120.0070.04720.14
5.5.110.0130.06720.23
5.5.100.0100.08020.05
5.5.90.0070.08020.12
5.5.80.0030.08720.13
5.5.70.0070.08320.03
5.5.60.0170.07020.02
5.5.50.0030.07020.11
5.5.40.0030.06720.11
5.5.30.0030.07720.06
5.5.20.0100.04320.01
5.5.10.0030.05019.97
5.5.00.0070.07020.00
5.4.450.0130.07319.20
5.4.440.0070.04719.36
5.4.430.0070.07019.50
5.4.420.0100.09319.46
5.4.410.0030.07019.08
5.4.400.0030.07719.05
5.4.390.0000.09019.21
5.4.380.0070.08019.09
5.4.370.0100.07719.18
5.4.360.0100.07719.10
5.4.350.0100.05319.18
5.4.340.0170.07018.85
5.4.320.0070.04719.05
5.4.310.0100.07019.08
5.4.300.0070.07719.14
5.4.290.0070.07718.85
5.4.280.0070.06018.82
5.4.270.0070.08019.04
5.4.260.0100.03719.23
5.4.250.0100.08019.16
5.4.240.0100.07018.84
5.4.230.0000.07319.18
5.4.220.0130.06718.89
5.4.210.0070.04319.12
5.4.200.0070.05019.04
5.4.190.0070.07019.13
5.4.180.0000.07718.84
5.4.170.0100.06019.04
5.4.160.0200.06319.02
5.4.150.0100.04318.99
5.4.140.0030.06016.35
5.4.130.0130.04016.34
5.4.120.0130.03316.43
5.4.110.0070.07016.56
5.4.100.0130.05716.53
5.4.90.0070.07016.53
5.4.80.0100.04716.36
5.4.70.0100.06716.43
5.4.60.0130.03016.44
5.4.50.0000.07016.48
5.4.40.0130.06316.50
5.4.30.0070.05316.39
5.4.20.0030.07316.34
5.4.10.0100.05316.30
5.4.00.0070.07015.89
5.3.290.0100.06714.71
5.3.280.0070.07714.54
5.3.270.0130.06314.70
5.3.260.0030.05714.54
5.3.250.0070.07714.75
5.3.240.0100.06714.64
5.3.230.0030.06714.59
5.3.220.0070.07314.64
5.3.210.0070.05014.50
5.3.200.0070.08314.71
5.3.190.0000.04314.71
5.3.180.0030.04314.60
5.3.170.0100.06314.50
5.3.160.0030.06014.63
5.3.150.0030.08314.50
5.3.140.0070.05314.67
5.3.130.0070.06714.58
5.3.120.0100.07714.64
5.3.110.0100.06314.49
5.3.100.0070.07013.99
5.3.90.0000.06714.11
5.3.80.0030.04314.08
5.3.70.0070.06014.09
5.3.60.0030.06014.02
5.3.50.0030.04313.85
5.3.40.0100.04013.97
5.3.30.0130.06013.98
5.3.20.0100.06313.77
5.3.10.0070.06013.66
5.3.00.0030.04313.75
5.2.170.0130.05311.16
5.2.160.0130.04711.27
5.2.150.0100.06311.17
5.2.140.0000.06011.16
5.2.130.0000.03711.16
5.2.120.0130.04711.17
5.2.110.0070.05711.16
5.2.100.0030.05711.16
5.2.90.0030.06011.16
5.2.80.0030.03711.16
5.2.70.0030.03311.16
5.2.60.0070.06011.16
5.2.50.0030.06311.16
5.2.40.0030.03311.16
5.2.30.0030.03011.16
5.2.20.0000.03311.16
5.2.10.0030.07011.16
5.2.00.0030.06311.16
5.1.60.0000.05311.16
5.1.50.0070.05011.16
5.1.40.0000.05711.16
5.1.30.0070.05011.16
5.1.20.0070.05711.16
5.1.10.0100.03011.16
5.1.00.0070.04311.16
5.0.50.0030.04711.16
5.0.40.0030.04311.16
5.0.30.0030.06711.16
5.0.20.0030.03711.16
5.0.10.0070.03711.16
5.0.00.0100.05311.16
4.4.90.0000.03011.16
4.4.80.0030.03311.16
4.4.70.0030.01711.16
4.4.60.0030.01711.16
4.4.50.0100.03011.16
4.4.40.0070.05011.16
4.4.30.0030.02311.16
4.4.20.0000.02011.16
4.4.10.0070.01711.16
4.4.00.0030.03011.16
4.3.110.0030.03011.16
4.3.100.0030.03311.16
4.3.90.0030.02011.16
4.3.80.0030.05311.16
4.3.70.0000.03711.16
4.3.60.0030.03311.16
4.3.50.0030.03311.16
4.3.40.0070.04711.16
4.3.30.0070.03011.16
4.3.20.0000.03311.16
4.3.10.0000.03711.16
4.3.00.0030.03011.16

preferences:
48.25 ms | 401 KiB | 5 Q