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 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 // 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)
8.3.60.0140.00718.56
8.3.50.0090.00822.06
8.3.40.0070.01118.97
8.3.30.0070.00719.07
8.3.20.0040.00420.30
8.3.10.0040.00421.96
8.3.00.0040.00422.44
8.2.180.0150.00316.63
8.2.170.0040.01222.96
8.2.160.0100.00720.51
8.2.150.0040.00424.18
8.2.140.0050.00224.66
8.2.130.0070.00026.16
8.2.120.0090.00919.26
8.2.110.0000.00922.16
8.2.100.0040.01117.72
8.2.90.0000.00719.05
8.2.80.0080.00017.97
8.2.70.0030.00517.63
8.2.60.0000.00817.91
8.2.50.0050.00318.07
8.2.40.0000.00818.16
8.2.30.0070.00017.95
8.2.20.0070.00017.61
8.2.10.0080.00019.47
8.2.00.0040.00417.57
8.1.280.0140.00325.92
8.1.270.0090.00023.99
8.1.260.0040.00426.35
8.1.250.0030.00628.09
8.1.240.0100.01318.45
8.1.230.0000.01019.16
8.1.220.0050.00317.74
8.1.210.0040.00418.77
8.1.200.0030.00617.23
8.1.190.0030.00817.51
8.1.180.0030.00618.10
8.1.170.0040.00418.69
8.1.160.0000.00722.00
8.1.150.0040.00418.59
8.1.140.0070.00017.41
8.1.130.0000.00717.85
8.1.120.0050.00317.39
8.1.110.0000.00717.41
8.1.100.0040.00417.30
8.1.90.0030.00317.38
8.1.80.0030.00417.38
8.1.70.0000.00717.40
8.1.60.0030.00617.65
8.1.50.0000.00717.42
8.1.40.0040.00417.57
8.1.30.0000.00817.50
8.1.20.0050.00317.59
8.1.10.0000.00717.45
8.1.00.0050.00317.50
8.0.300.0040.00418.77
8.0.290.0000.00716.93
8.0.280.0050.00318.39
8.0.270.0030.00317.31
8.0.260.0000.00716.92
8.0.250.0020.00617.01
8.0.240.0080.00016.84
8.0.230.0030.00316.99
8.0.220.0070.00016.91
8.0.210.0040.00416.84
8.0.200.0000.00716.95
8.0.190.0050.00216.86
8.0.180.0030.00316.98
8.0.170.0000.00716.83
8.0.160.0040.00416.94
8.0.150.0070.00016.84
8.0.140.0040.00416.83
8.0.130.0040.00413.38
8.0.120.0040.00416.79
8.0.110.0040.00416.80
8.0.100.0040.00416.73
8.0.90.0070.00016.79
8.0.80.0060.00916.80
8.0.70.0000.00816.94
8.0.60.0040.00416.82
8.0.50.0000.00716.92
8.0.30.0120.01117.01
8.0.20.0090.01217.40
8.0.10.0030.00517.03
8.0.00.0080.01216.69
7.4.330.0030.00315.00
7.4.320.0040.00416.47
7.4.300.0030.00316.53
7.4.290.0020.00516.60
7.4.280.0000.00716.59
7.4.270.0040.00416.43
7.4.260.0000.00716.40
7.4.250.0040.00416.46
7.4.240.0000.00816.54
7.4.230.0030.00316.42
7.4.220.0110.00816.43
7.4.210.0070.01016.61
7.4.200.0070.00016.63
7.4.190.0030.00516.57
7.4.160.0070.01016.69
7.4.150.0030.01517.40
7.4.140.0070.01017.86
7.4.130.0110.01216.53
7.4.120.0090.00916.55
7.4.110.0000.01716.37
7.4.100.0140.00416.56
7.4.90.0120.00916.64
7.4.80.0090.01119.39
7.4.70.0130.00316.49
7.4.60.0090.00916.54
7.4.50.0000.00916.54
7.4.40.0040.01422.77
7.4.30.0100.00616.55
7.4.00.0140.00414.86
7.3.330.0000.00513.23
7.3.320.0020.00313.23
7.3.310.0040.00416.37
7.3.300.0000.00716.32
7.3.290.0070.01316.34
7.3.280.0120.00716.34
7.3.270.0150.00917.40
7.3.260.0080.01216.49
7.3.250.0120.00616.40
7.3.240.0110.01216.61
7.3.230.0030.01716.60
7.3.210.0130.00316.49
7.3.200.0100.00719.39
7.3.190.0070.01116.42
7.3.180.0080.00916.31
7.3.170.0030.01316.49
7.3.160.0100.00616.42
7.3.120.0060.01014.53
7.3.10.0050.00316.56
7.3.00.0030.00616.30
7.2.330.0090.00916.86
7.2.320.0340.02516.81
7.2.310.0130.00316.36
7.2.300.0100.00616.53
7.2.290.0130.00916.34
7.2.130.0080.00416.87
7.2.120.0030.00616.72
7.2.110.0120.00316.80
7.2.100.0060.00316.70
7.2.90.0040.00416.83
7.2.80.0100.00316.89
7.2.70.0040.01217.16
7.2.60.0030.01016.73
7.2.50.0070.00716.66
7.2.40.0060.00616.95
7.2.30.0070.00716.87
7.2.20.0030.01316.93
7.2.10.0030.00716.77
7.2.00.0070.00718.35
7.1.250.0070.00415.86
7.1.100.0190.00817.75
7.1.70.0000.00716.71
7.1.60.0070.01819.82
7.1.50.0030.00916.85
7.1.00.0070.07322.42
7.0.200.0070.00316.71
7.0.140.0070.07322.11
7.0.70.0070.08321.65
7.0.60.0070.07721.66
7.0.50.0030.08022.14
7.0.40.0000.08320.09
7.0.30.0070.06320.09
7.0.20.0030.08020.06
7.0.10.0070.07320.11
7.0.00.0030.08720.10
5.6.280.0000.07721.11
5.6.220.0070.06020.48
5.6.210.0100.04720.48
5.6.200.0000.07021.04
5.6.190.0000.07721.07
5.6.180.0070.04720.91
5.6.170.0100.07721.09
5.6.160.0130.06321.10
5.6.150.0030.08321.08
5.6.140.0030.08721.03
5.6.130.0030.05720.94
5.6.120.0030.08720.95
5.6.110.0100.07720.93
5.6.100.0000.08321.02
5.6.90.0070.08021.11
5.6.80.0070.07720.47
5.6.70.0000.08020.43
5.6.60.0070.08020.27
5.6.50.0130.06320.34
5.6.40.0100.08320.38
5.6.30.0030.08320.29
5.6.20.0030.08020.42
5.6.10.0030.08320.43
5.6.00.0130.06720.30
5.5.360.0000.08720.33
5.5.350.0030.06320.41
5.5.340.0130.07020.91
5.5.330.0000.06320.83
5.5.320.0030.07720.82
5.5.310.0000.08020.69
5.5.300.0000.08720.91
5.5.290.0030.06020.81
5.5.280.0000.08720.87
5.5.270.0100.08020.81
5.5.260.0000.05320.62
5.5.250.0100.07020.58
5.5.240.0030.05320.25
5.5.230.0070.08020.27
5.5.220.0000.07320.26
5.5.210.0000.08720.27
5.5.200.0100.06020.23
5.5.190.0130.07020.18
5.5.180.0030.08720.10
5.5.160.0000.08020.25
5.5.150.0130.06720.23
5.5.140.0030.06020.10
5.5.130.0030.04720.08
5.5.120.0030.05319.98
5.5.110.0000.04720.08
5.5.100.0100.07320.16
5.5.90.0030.06720.09
5.5.80.0000.07020.00
5.5.70.0070.03720.11
5.5.60.0070.05320.13
5.5.50.0000.07720.05
5.5.40.0030.06020.04
5.5.30.0000.06719.91
5.5.20.0030.07320.05
5.5.10.0000.08720.10
5.5.00.0100.08019.94
5.4.450.0000.08019.45
5.4.440.0070.06719.39
5.4.430.0000.08019.21
5.4.420.0000.07319.21
5.4.410.0100.05719.42
5.4.400.0030.06319.07
5.4.390.0000.05319.17
5.4.380.0100.07019.06
5.4.370.0030.05719.07
5.4.360.0070.05319.13
5.4.350.0000.07318.99
5.4.340.0070.07019.00
5.4.320.0000.07719.25
5.4.310.0000.05718.87
5.4.300.0030.06019.13
5.4.290.0030.06319.15
5.4.280.0030.07019.02
5.4.270.0000.05019.13
5.4.260.0030.06019.02
5.4.250.0100.05719.00
5.4.240.0070.04719.13
5.4.230.0030.04718.82
5.4.220.0070.07019.22
5.4.210.0130.07019.22
5.4.200.0070.07019.02
5.4.190.0030.06319.01
5.4.180.0030.07318.88
5.4.170.0030.06719.00
5.4.160.0000.07019.21
5.4.150.0030.07718.81
5.4.140.0030.04316.42
5.4.130.0030.06316.30
5.4.120.0070.05016.38
5.4.110.0100.04716.47
5.4.100.0030.07016.48
5.4.90.0030.06316.42
5.4.80.0000.05316.43
5.4.70.0030.03316.45
5.4.60.0030.07016.31
5.4.50.0070.07016.41
5.4.40.0000.06316.27
5.4.30.0030.05316.36
5.4.20.0000.06716.23
5.4.10.0030.03716.36
5.4.00.0000.03715.68
5.3.290.0070.06314.88
5.3.280.0030.05314.88
5.3.270.0030.06314.88
5.3.260.0030.07014.88
5.3.250.0070.05714.88
5.3.240.0100.03714.88
5.3.230.0070.04014.88
5.3.220.0030.06714.88
5.3.210.0030.06014.88
5.3.200.0000.07714.88
5.3.190.0000.04014.88
5.3.180.0070.03314.88
5.3.170.0000.03714.88
5.3.160.0130.03714.88
5.3.150.0030.06014.88
5.3.140.0070.07314.88
5.3.130.0000.04714.88
5.3.120.0030.07714.88
5.3.110.0030.03714.88
5.3.100.0000.03714.88
5.3.90.0070.03714.88
5.3.80.0000.03714.88
5.3.70.0070.03714.88
5.3.60.0030.03314.88
5.3.50.0030.04714.88
5.3.40.0030.04314.88
5.3.30.0030.04014.88
5.3.20.0030.04714.88
5.3.10.0070.04314.88
5.3.00.0030.07014.88
5.2.170.0030.05314.88
5.2.160.0030.06014.88
5.2.150.0070.05714.88
5.2.140.0030.05014.88
5.2.130.0030.06014.88
5.2.120.0000.04714.88
5.2.110.0030.03714.88
5.2.100.0000.03014.88
5.2.90.0070.04714.88
5.2.80.0030.04714.88
5.2.70.0000.06014.88
5.2.60.0030.05714.88
5.2.50.0030.05314.88
5.2.40.0030.05014.88
5.2.30.0230.06014.88
5.2.20.0030.03714.88
5.2.10.0070.06014.88
5.2.00.0000.05014.88
5.1.60.0030.05714.88
5.1.50.0030.04014.88
5.1.40.0000.04014.88
5.1.30.0000.06014.88
5.1.20.0100.04714.88
5.1.10.0070.04714.88
5.1.00.0030.04014.88
5.0.50.0030.04314.88
5.0.40.0030.03714.88
5.0.30.0000.06714.88
5.0.20.0000.04314.88
5.0.10.0070.03014.88
5.0.00.0030.05014.88
4.4.90.0030.03014.88
4.4.80.0030.03014.88
4.4.70.0030.02314.88
4.4.60.0030.03314.88
4.4.50.0030.03014.88
4.4.40.0030.04014.88
4.4.30.0000.04014.88
4.4.20.0030.03014.88
4.4.10.0000.04014.88
4.4.00.0030.05014.88
4.3.110.0000.03714.88
4.3.100.0030.02314.88
4.3.90.0000.02714.88
4.3.80.0000.04714.88
4.3.70.0030.01714.88
4.3.60.0000.03314.88
4.3.50.0000.04014.88
4.3.40.0030.04314.88
4.3.30.0030.03314.88
4.3.20.0030.03314.88
4.3.10.0030.03714.88
4.3.00.0000.03014.88

preferences:
43.87 ms | 401 KiB | 5 Q