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(); $blah = $v[('blah'[0])]; $test->__set($array[$first_key] , $blah[0]['blah']); /* foreach($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)
8.3.40.0100.00718.80
8.3.30.0150.00019.21
8.3.20.0000.00820.37
8.3.10.0000.00823.65
8.3.00.0060.00319.47
8.2.170.0120.00322.96
8.2.160.0130.00620.35
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0040.00426.16
8.2.120.0070.00322.13
8.2.110.0060.00320.36
8.2.100.0080.00317.91
8.2.90.0000.00819.05
8.2.80.0000.00817.97
8.2.70.0000.00817.63
8.2.60.0050.00317.93
8.2.50.0070.00318.07
8.2.40.0030.00619.82
8.2.30.0080.00017.98
8.2.20.0020.00517.70
8.2.10.0030.00519.74
8.2.00.0000.00817.79
8.1.270.0060.01322.19
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00022.14
8.1.230.0030.01022.20
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0050.00317.50
8.1.180.0080.00418.10
8.1.170.0070.00318.57
8.1.160.0070.00021.98
8.1.150.0030.00718.51
8.1.140.0000.00717.40
8.1.130.0070.00017.75
8.1.120.0080.00017.32
8.1.110.0060.00317.39
8.1.100.0070.00017.26
8.1.90.0000.00717.46
8.1.80.0000.00717.42
8.1.70.0000.00717.40
8.1.60.0000.00717.55
8.1.50.0000.00917.58
8.1.40.0020.00517.52
8.1.30.0000.00817.54
8.1.20.0000.00817.73
8.1.10.0080.00017.55
8.1.00.0030.00517.42
8.0.300.0060.00319.21
8.0.290.0060.00317.05
8.0.280.0070.00018.45
8.0.270.0000.00717.09
8.0.260.0060.00017.21
8.0.250.0000.00716.96
8.0.240.0030.00316.98
8.0.230.0080.00016.95
8.0.220.0000.00716.90
8.0.210.0040.00416.95
8.0.200.0000.00716.80
8.0.190.0050.00316.93
8.0.180.0080.00016.94
8.0.170.0040.00416.92
8.0.160.0030.00316.88
8.0.150.0000.00716.85
8.0.140.0040.00416.82
8.0.130.0070.00013.36
8.0.120.0080.00016.84
8.0.110.0050.00216.74
8.0.100.0040.00416.80
8.0.90.0000.00716.75
8.0.80.0120.00916.86
8.0.70.0040.00416.73
8.0.60.0080.00016.92
8.0.50.0050.00216.92
8.0.30.0130.00617.27
8.0.20.0120.00717.40
8.0.10.0040.00416.85
8.0.00.0080.00916.72
7.4.330.0050.00015.00
7.4.320.0060.00016.52
7.4.300.0060.00016.54
7.4.290.0040.00416.66
7.4.280.0000.00716.55
7.4.270.0040.00416.59
7.4.260.0040.00416.52
7.4.250.0070.00016.47
7.4.240.0000.00816.54
7.4.230.0000.00716.56
7.4.220.0210.00016.38
7.4.210.0080.00816.65
7.4.200.0030.00316.64
7.4.190.0030.00316.46
7.4.160.0080.00816.59
7.4.150.0070.01117.40
7.4.140.0120.00817.86
7.4.130.0080.00816.49
7.4.120.0070.01016.57
7.4.110.0090.00816.64
7.4.100.0140.00716.37
7.4.90.0040.01516.64
7.4.80.0130.00819.39
7.4.70.0040.01316.57
7.4.60.0080.00816.59
7.4.50.0090.00016.30
7.4.40.0070.01022.77
7.4.30.0090.01216.62
7.4.00.0100.00315.27
7.3.330.0000.00613.42
7.3.320.0000.00513.45
7.3.310.0080.00016.52
7.3.300.0000.00916.29
7.3.290.0210.00816.43
7.3.280.0090.01116.43
7.3.270.0070.01517.40
7.3.260.0140.00416.58
7.3.250.0130.00616.44
7.3.240.0030.01316.44
7.3.230.0090.00916.44
7.3.210.0110.00716.38
7.3.200.0130.01119.39
7.3.190.0190.00316.51
7.3.180.0030.01316.36
7.3.170.0070.01016.63
7.3.160.0100.00716.43
7.3.120.0110.00314.88
7.2.330.0070.01016.52
7.2.320.0090.01216.88
7.2.310.0120.00616.62
7.2.300.0110.00716.48
7.2.290.0070.01316.86
7.2.60.0040.00816.90
7.2.00.0060.01019.52
7.1.200.0090.00015.51
7.1.100.0030.01317.76
7.1.70.0020.00516.96
7.1.60.0000.01119.46
7.1.50.0150.00617.05
7.1.00.0070.07322.51
7.0.200.0000.00716.71
7.0.140.0070.07022.00
7.0.110.0000.06320.11
7.0.100.0000.04719.94
7.0.90.0070.04319.99
7.0.80.0100.07719.98
7.0.70.0100.04320.05
7.0.60.0100.04019.88
7.0.50.0070.04720.00
7.0.40.0100.07319.88
7.0.30.0130.06319.88
7.0.20.0230.07019.67
7.0.10.0070.03719.73
7.0.00.0000.04019.63
5.6.280.0030.07321.04
5.6.260.0070.04020.67
5.6.250.0100.06720.70
5.6.240.0070.07720.65
5.6.230.0030.06320.57
5.6.220.0030.04320.56
5.6.210.0100.03720.59
5.6.200.0100.03720.71
5.6.190.0000.08020.62
5.6.180.0070.04020.56
5.6.170.0070.07320.65
5.6.160.0070.03720.62
5.6.150.0070.04320.48
5.6.140.0030.05020.68
5.6.130.0070.05020.56
5.6.120.0100.07320.65
5.6.110.0070.05320.55
5.6.100.0070.04320.67
5.6.90.0000.04320.84
5.6.80.0130.03319.94
5.6.70.0070.05020.03
5.6.60.0000.04320.02
5.6.50.0030.04020.09
5.6.40.0000.07320.02
5.6.30.0030.04020.22
5.6.20.0070.04020.01
5.6.10.0000.03720.04
5.6.00.0030.07020.00
5.5.380.0030.07017.61
5.5.370.0100.03317.70
5.5.360.0070.04017.50
5.5.350.0030.04317.75
5.5.340.0070.03718.13
5.5.330.0100.08318.09
5.5.320.0000.07717.92
5.5.310.0070.08317.95
5.5.300.0000.03718.22
5.5.290.0070.06317.91
5.5.280.0100.06017.92
5.5.270.0070.07717.91
5.5.260.0000.04718.08
5.5.250.0130.07317.64
5.5.240.0000.04317.34
5.5.230.0130.03017.45
5.5.220.0070.06017.46
5.5.210.0070.04317.48
5.5.200.0000.04017.61
5.5.190.0030.03317.28
5.5.180.0070.03017.60
5.5.160.0030.04017.47
5.5.150.0070.06717.57
5.5.140.0130.07017.57
5.5.130.0000.04317.42
5.5.120.0000.04017.30
5.5.110.0070.05017.59
5.5.100.0070.03317.18
5.5.90.0100.03717.30
5.5.80.0000.06017.50
5.5.70.0030.03317.15
5.5.60.0030.04717.17
5.5.50.0000.07717.16
5.5.40.0030.04717.34
5.5.30.0000.05017.07
5.5.20.0070.05317.07
5.5.10.0070.07317.15
5.5.00.0030.04017.19
5.4.450.0170.04719.51
5.4.440.0030.04319.57
5.4.430.0070.04019.48
5.4.420.0030.06019.50
5.4.410.0100.05019.18
5.4.400.0130.02719.34
5.4.390.0070.03719.16
5.4.380.0000.04319.16
5.4.370.0030.04719.24
5.4.360.0070.03019.01
5.4.350.0030.04719.00
5.4.340.0030.04019.03
5.4.320.0030.09719.24
5.4.310.0030.03719.32
5.4.300.0100.04019.02
5.4.290.0000.04019.01
5.4.280.0170.02718.95
5.4.270.0030.03719.03
5.4.260.0000.03719.24
5.4.250.0100.03019.33
5.4.240.0030.06018.95
5.4.230.0030.06719.16
5.4.220.0000.07319.17
5.4.210.0000.08319.21
5.4.200.0130.06019.01
5.4.190.0070.06019.13
5.4.180.0100.07719.00
5.4.170.0070.08019.00
5.4.160.0030.06719.01
5.4.150.0030.05319.22
5.4.140.0030.03316.35
5.4.130.0070.05016.51
5.4.120.0070.03316.53
5.4.110.0030.06716.55
5.4.100.0100.07016.52
5.4.90.0070.04016.48
5.4.80.0070.06316.58
5.4.70.0130.03016.71
5.4.60.0030.08716.40
5.4.50.0070.05716.54
5.4.40.0070.04716.62
5.4.30.0100.05316.44
5.4.20.0000.03316.52
5.4.10.0100.03716.53
5.4.00.0000.03715.85
5.3.290.0000.06314.54
5.3.280.0000.03314.46
5.3.270.0070.03014.70
5.3.260.0070.06314.59
5.3.250.0100.02314.75
5.3.240.0070.06014.57
5.3.230.0070.04714.60
5.3.220.0100.06014.70
5.3.210.0070.04714.55
5.3.200.0070.04014.72
5.3.190.0100.07014.66
5.3.180.0100.06714.70
5.3.170.0030.03014.66
5.3.160.0070.06314.66
5.3.150.0070.05014.43
5.3.140.0000.04014.56
5.3.130.0030.03714.59
5.3.120.0070.03714.70
5.3.110.0070.03014.58
5.3.100.0100.06014.18
5.3.90.0000.04014.12
5.3.80.0130.02714.02
5.3.70.0000.04014.04
5.3.60.0200.04013.97
5.3.50.0070.03014.04
5.3.40.0070.04013.91
5.3.30.0130.03714.00
5.3.20.0070.04013.76
5.3.10.0100.03713.77
5.3.00.0000.04013.71
5.2.170.0100.01712.09
5.2.160.0070.06012.09
5.2.150.0030.03012.09
5.2.140.0000.03312.09
5.2.130.0030.03712.09
5.2.120.0030.03312.09
5.2.110.0100.02312.09
5.2.100.0030.04312.09
5.2.90.0030.06312.09
5.2.80.0030.03012.09
5.2.70.0000.03712.09
5.2.60.0030.03312.09
5.2.50.0000.06712.09
5.2.40.0030.05012.09
5.2.30.0000.03312.09
5.2.20.0100.05712.09
5.2.10.0100.06312.09
5.2.00.0030.05312.09
5.1.60.0030.03012.09
5.1.50.0030.02312.09
5.1.40.0070.03712.09
5.1.30.0000.03012.09
5.1.20.0070.04012.09
5.1.10.0030.03712.09
5.1.00.0030.02312.09
5.0.50.0000.02312.09
5.0.40.0030.04312.09
5.0.30.0030.04012.09
5.0.20.0200.01312.09
5.0.10.0000.04312.09
5.0.00.0000.06712.09
4.4.90.0000.01712.09
4.4.80.0000.02012.09
4.4.70.0000.02712.09
4.4.60.0100.02712.09
4.4.50.0000.03012.09
4.4.40.0000.02712.09
4.4.30.0000.03712.09
4.4.20.0030.01712.09
4.4.10.0000.01712.09
4.4.00.0000.02712.09
4.3.110.0070.02012.09
4.3.100.0000.02012.09
4.3.90.0000.03312.09
4.3.80.0000.04312.09
4.3.70.0000.03712.09
4.3.60.0030.01712.09
4.3.50.0000.01712.09
4.3.40.0000.02712.09
4.3.30.0000.03312.09
4.3.20.0000.02012.09
4.3.10.0000.03312.09
4.3.00.0030.03012.09

preferences:
44.21 ms | 400 KiB | 5 Q