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 $test = (new Test)->secret('Test me bro!'); // 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)
8.3.60.0060.01018.48
8.3.50.0110.00521.08
8.3.40.0090.00618.84
8.3.30.0040.01120.34
8.3.20.0050.00320.30
8.3.10.0000.00822.02
8.3.00.0040.00722.34
8.2.180.0070.01416.88
8.2.170.0030.01322.96
8.2.160.0060.00620.52
8.2.150.0040.00424.18
8.2.140.0060.00324.66
8.2.130.0030.01426.16
8.2.120.0050.00319.54
8.2.110.0030.00720.53
8.2.100.0090.00317.78
8.2.90.0040.00419.28
8.2.80.0070.00019.23
8.2.70.0050.00317.50
8.2.60.0040.00418.04
8.2.50.0040.00418.07
8.2.40.0080.00018.06
8.2.30.0040.00417.95
8.2.20.0070.00017.67
8.2.10.0000.00717.65
8.2.00.0030.00617.70
8.1.280.0040.01125.92
8.1.270.0120.00624.66
8.1.260.0070.00026.35
8.1.250.0000.00728.09
8.1.240.0090.00023.92
8.1.230.0040.00719.00
8.1.220.0000.00817.74
8.1.210.0030.00618.77
8.1.200.0040.00417.35
8.1.190.0040.00417.53
8.1.180.0070.00020.25
8.1.170.0030.00618.59
8.1.160.0070.00022.06
8.1.150.0050.00218.57
8.1.140.0040.00417.45
8.1.130.0060.00317.75
8.1.120.0040.00417.31
8.1.110.0000.00717.38
8.1.100.0050.00217.43
8.1.90.0040.00417.40
8.1.80.0040.00417.45
8.1.70.0080.00017.37
8.1.60.0000.00917.44
8.1.50.0000.00817.49
8.1.40.0030.00517.39
8.1.30.0040.00417.60
8.1.20.0000.00817.57
8.1.10.0000.00717.48
8.1.00.0040.00417.51
8.0.300.0040.00418.77
8.0.290.0040.00416.99
8.0.280.0040.00418.39
8.0.270.0030.00317.18
8.0.260.0060.00016.83
8.0.250.0000.00716.86
8.0.240.0050.00316.97
8.0.230.0020.00516.86
8.0.220.0030.00316.80
8.0.210.0040.00416.90
8.0.200.0000.00616.85
8.0.190.0030.00516.97
8.0.180.0040.00416.94
8.0.170.0040.00416.84
8.0.160.0030.00516.94
8.0.150.0040.00416.84
8.0.140.0080.00016.84
8.0.130.0030.00313.43
8.0.120.0000.00716.88
8.0.110.0040.00416.81
8.0.100.0000.00716.85
8.0.90.0040.00416.70
8.0.80.0130.00316.88
8.0.70.0050.00316.93
8.0.60.0020.00516.80
8.0.50.0000.00716.89
8.0.30.0100.01316.97
8.0.20.0110.01517.40
8.0.10.0000.00717.02
8.0.00.0060.01216.73
7.4.330.0050.00015.00
7.4.320.0030.00316.46
7.4.300.0060.00016.62
7.4.290.0030.00316.50
7.4.280.0000.00616.40
7.4.270.0040.00416.63
7.4.260.0000.00716.57
7.4.250.0040.00416.62
7.4.240.0030.00516.55
7.4.230.0070.00016.62
7.4.220.0030.02016.48
7.4.210.0050.00916.56
7.4.200.0070.00016.64
7.4.190.0040.00316.42
7.4.160.0030.01816.49
7.4.150.0130.00417.40
7.4.140.0160.00517.86
7.4.130.0100.00716.42
7.4.120.0090.00716.52
7.4.110.0070.01016.36
7.4.100.0130.01016.57
7.4.90.0180.00016.38
7.4.80.0080.01319.39
7.4.70.0160.00616.49
7.4.60.0000.01616.42
7.4.50.0040.00416.36
7.4.40.0060.00922.77
7.4.30.0070.01416.66
7.4.00.0070.01014.76
7.3.330.0050.00013.32
7.3.320.0000.00513.12
7.3.310.0040.00416.46
7.3.300.0000.00616.36
7.3.290.0100.01016.23
7.3.280.0090.00616.29
7.3.270.0060.01217.40
7.3.260.0030.01816.68
7.3.250.0090.01116.33
7.3.240.0060.01816.29
7.3.230.0120.00916.45
7.3.210.0130.00916.48
7.3.200.0090.01219.39
7.3.190.0180.00416.34
7.3.180.0040.01116.38
7.3.170.0150.00616.32
7.3.160.0100.00716.39
7.3.120.0110.00314.85
7.2.330.0180.00616.54
7.2.320.0140.01016.73
7.2.310.0000.01716.53
7.2.300.0040.01416.68
7.2.290.0040.01116.43
7.2.60.0040.01116.83
7.2.00.0030.00919.23
7.1.200.0030.01015.60
7.1.100.0000.01117.98
7.1.70.0040.00417.04
7.1.60.0100.01419.43
7.1.50.0100.01416.85
7.1.00.0000.05022.43
7.0.200.0000.00816.70
7.0.140.0030.07722.21
7.0.110.0100.03319.95
7.0.100.0070.03720.05
7.0.90.0030.05020.07
7.0.80.0100.07719.95
7.0.70.0030.04319.95
7.0.60.0070.08320.02
7.0.50.0030.05020.04
7.0.40.0070.05019.83
7.0.30.0200.06319.74
7.0.20.0100.07719.84
7.0.10.0030.08319.81
7.0.00.0130.07319.82
5.6.280.0030.07321.13
5.6.260.0070.03720.67
5.6.250.0070.03720.73
5.6.240.0070.04320.87
5.6.230.0070.04320.60
5.6.220.0000.04320.53
5.6.210.0100.08020.55
5.6.200.0070.08320.63
5.6.190.0130.03720.66
5.6.180.0130.08020.57
5.6.170.0070.05020.63
5.6.160.0100.07720.59
5.6.150.0030.08720.55
5.6.140.0100.07320.65
5.6.130.0070.07320.71
5.6.120.0100.08320.68
5.6.110.0130.07720.70
5.6.100.0130.07720.61
5.6.90.0100.08020.62
5.6.80.0070.07719.97
5.6.70.0130.06719.93
5.6.60.0170.07320.02
5.6.50.0100.05019.95
5.6.40.0100.07719.99
5.6.30.0070.08319.95
5.6.20.0100.04720.00
5.6.10.0070.07319.95
5.6.00.0200.06719.84
5.5.380.0000.04717.60
5.5.370.0030.04317.52
5.5.360.0000.04317.58
5.5.350.0030.08017.59
5.5.340.0070.07017.93
5.5.330.0030.08018.09
5.5.320.0070.08318.10
5.5.310.0030.08017.91
5.5.300.0100.06717.93
5.5.290.0070.06018.13
5.5.280.0070.06318.05
5.5.270.0070.08317.92
5.5.260.0100.06318.24
5.5.250.0130.07317.91
5.5.240.0070.08017.47
5.5.230.0030.07017.63
5.5.220.0130.03717.50
5.5.210.0030.08017.46
5.5.200.0100.06717.60
5.5.190.0130.07017.26
5.5.180.0170.07317.57
5.5.160.0000.08317.44
5.5.150.0070.07717.27
5.5.140.0170.05717.30
5.5.130.0130.06017.30
5.5.120.0130.07017.46
5.5.110.0100.07317.25
5.5.100.0130.04317.38
5.5.90.0130.06717.08
5.5.80.0070.07317.30
5.5.70.0100.07717.34
5.5.60.0100.07317.07
5.5.50.0070.08017.13
5.5.40.0170.05317.49
5.5.30.0130.04717.17
5.5.20.0070.07017.16
5.5.10.0130.06717.38
5.5.00.0100.06317.33
5.4.450.0070.07719.47
5.4.440.0100.07319.26
5.4.430.0030.08319.32
5.4.420.0130.07019.31
5.4.410.0030.08319.18
5.4.400.0070.07319.18
5.4.390.0200.06019.18
5.4.380.0130.07019.02
5.4.370.0100.06719.16
5.4.360.0270.06319.14
5.4.350.0170.06719.23
5.4.340.0130.07019.03
5.4.320.0130.07319.02
5.4.310.0030.08019.22
5.4.300.0130.06718.98
5.4.290.0070.06719.03
5.4.280.0030.08319.16
5.4.270.0130.03719.02
5.4.260.0100.07319.01
5.4.250.0100.07019.18
5.4.240.0030.08019.22
5.4.230.0000.08319.16
5.4.220.0070.08019.18
5.4.210.0070.06718.94
5.4.200.0170.06718.99
5.4.190.0170.03319.21
5.4.180.0170.06719.20
5.4.170.0030.05319.00
5.4.160.0030.07719.00
5.4.150.0100.03319.19
5.4.140.0070.07316.48
5.4.130.0070.06716.34
5.4.120.0100.06716.54
5.4.110.0030.05316.26
5.4.100.0030.07016.52
5.4.90.0030.07316.42
5.4.80.0070.04016.27
5.4.70.0070.05016.54
5.4.60.0100.06016.45
5.4.50.0130.04016.48
5.4.40.0100.06016.48
5.4.30.0130.06716.63
5.4.20.0100.04016.39
5.4.10.0000.04316.58
5.4.00.0130.04015.91
5.3.290.0000.04314.81
5.3.280.0100.07714.62
5.3.270.0030.04014.63
5.3.260.0070.06014.60
5.3.250.0000.08014.46
5.3.240.0100.04314.57
5.3.230.0070.06014.69
5.3.220.0100.07714.57
5.3.210.0030.08314.57
5.3.200.0100.05314.43
5.3.190.0100.06714.65
5.3.180.0100.07314.70
5.3.170.0070.07714.42
5.3.160.0070.07314.54
5.3.150.0000.04714.70
5.3.140.0030.04314.64
5.3.130.0100.06314.54
5.3.120.0130.06714.50
5.3.110.0070.04014.68
5.3.100.0070.07014.02
5.3.90.0030.04014.05
5.3.80.0070.07314.00
5.3.70.0030.06714.04
5.3.60.0000.04314.00
5.3.50.0000.03314.09
5.3.40.0130.05714.18
5.3.30.0070.06713.77
5.3.20.0030.07013.55
5.3.10.0030.07713.89
5.3.00.0070.07713.68
5.2.170.0030.05711.28
5.2.160.0030.06011.21
5.2.150.0070.06311.15
5.2.140.0030.06011.15
5.2.130.0100.04711.12
5.2.120.0070.03011.17
5.2.110.0100.05711.10
5.2.100.0030.05311.07
5.2.90.0070.06011.08
5.2.80.0070.06311.09
5.2.70.0030.06011.07
5.2.60.0070.06311.20
5.2.50.0070.03711.04
5.2.40.0100.05710.99
5.2.30.0000.04710.97
5.2.20.0030.03710.96
5.2.10.0030.05310.99
5.2.00.0030.05310.58
5.1.60.0100.02710.16
5.1.50.0030.0579.89
5.1.40.0000.0309.96
5.1.30.0030.05710.32
5.1.20.0070.05310.44
5.1.10.0030.05010.33
5.1.00.0070.03310.07
5.0.50.0000.0509.89
5.0.40.0130.0339.89
5.0.30.0030.0639.89
5.0.20.0030.0439.89
5.0.10.0030.0409.89
5.0.00.0000.0379.89
4.4.90.0030.0339.89
4.4.80.0030.0339.89
4.4.70.0000.0239.89
4.4.60.0070.0309.89
4.4.50.0070.0309.89
4.4.40.0030.0509.89
4.4.30.0030.0339.89
4.4.20.0030.0179.89
4.4.10.0070.0309.89
4.4.00.0070.0509.89
4.3.110.0030.0279.89
4.3.100.0030.0339.89
4.3.90.0030.0379.89
4.3.80.0000.0539.89
4.3.70.0000.0339.89
4.3.60.0000.0209.89
4.3.50.0030.0309.89
4.3.40.0030.0339.89
4.3.30.0030.0339.89
4.3.20.0030.0339.89
4.3.10.0070.0239.89
4.3.00.0100.0239.89

preferences:
41.41 ms | 401 KiB | 5 Q