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 echo $key; $value = $v(); // and a callback! $this->{$key} = $value; } } $test = new Test; // start editing here $test->foo = array("a"=>function(){ echo $this->secret; }); // 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)
8.3.60.0110.00418.80
8.3.50.0100.00821.14
8.3.40.0110.00718.79
8.3.30.0030.01020.17
8.3.20.0040.00820.35
8.3.10.0040.00421.09
8.3.00.0040.00422.50
8.2.180.0120.00916.75
8.2.170.0160.00022.96
8.2.160.0040.01222.12
8.2.150.0090.00024.18
8.2.140.0000.00824.66
8.2.130.0070.00026.16
8.2.120.0040.00420.79
8.2.110.0040.00422.26
8.2.100.0000.01217.91
8.2.90.0040.00417.88
8.2.80.0030.00517.97
8.2.70.0030.00517.93
8.2.60.0040.00418.28
8.2.50.0090.00018.10
8.2.40.0070.00019.51
8.2.30.0000.00719.39
8.2.20.0040.00417.80
8.2.10.0080.00017.73
8.2.00.0000.00817.88
8.1.280.0180.00025.92
8.1.270.0000.00723.99
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0090.00023.92
8.1.230.0040.00719.16
8.1.220.0000.00817.91
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0050.00317.23
8.1.180.0060.00318.10
8.1.170.0050.00318.44
8.1.160.0060.00318.82
8.1.150.0050.00518.79
8.1.140.0000.00717.51
8.1.130.0030.00317.85
8.1.120.0000.01117.49
8.1.110.0070.00017.46
8.1.100.0040.00417.46
8.1.90.0030.00517.45
8.1.80.0070.00017.46
8.1.70.0050.00317.36
8.1.60.0030.00617.56
8.1.50.0000.00717.44
8.1.40.0040.00417.50
8.1.30.0040.00417.52
8.1.20.0040.00417.50
8.1.10.0030.00617.61
8.1.00.0040.00417.60
8.0.300.0040.00418.77
8.0.290.0030.00516.63
8.0.280.0000.00818.31
8.0.270.0040.00417.20
8.0.260.0030.00316.87
8.0.250.0030.00316.84
8.0.240.0080.00016.89
8.0.230.0000.00716.91
8.0.220.0050.00316.89
8.0.210.0000.00716.96
8.0.200.0030.00317.02
8.0.190.0070.00016.90
8.0.180.0060.00317.02
8.0.170.0030.00616.91
8.0.160.0040.00416.80
8.0.150.0040.00416.93
8.0.140.0000.00716.94
8.0.130.0000.00613.35
8.0.120.0000.00816.99
8.0.110.0000.00716.89
8.0.100.0030.00616.99
8.0.90.0050.00316.91
8.0.80.0100.01016.95
8.0.70.0070.00016.90
8.0.60.0030.00516.83
8.0.50.0070.00016.86
8.0.30.0120.00817.03
8.0.20.0090.01317.40
8.0.10.0000.00817.11
8.0.00.0100.01116.75
7.4.330.0050.00016.71
7.4.320.0040.00416.41
7.4.300.0000.00716.42
7.4.290.0030.00316.54
7.4.280.0070.00016.45
7.4.270.0030.00316.44
7.4.260.0000.00513.29
7.4.250.0000.00816.58
7.4.240.0040.00316.58
7.4.230.0000.00716.59
7.4.220.0060.01216.55
7.4.210.0110.00616.54
7.4.200.0030.00316.70
7.4.190.0000.00716.66
7.4.160.0180.00616.48
7.4.150.0140.00417.40
7.4.140.0090.00817.86
7.4.130.0070.01216.53
7.4.120.0100.00716.58
7.4.110.0070.01016.33
7.4.100.0100.00716.68
7.4.90.0030.02016.50
7.4.80.0090.00919.39
7.4.70.0030.01316.68
7.4.60.0100.00716.34
7.4.50.0040.00416.12
7.4.40.0120.00322.77
7.4.30.0060.01516.36
7.4.00.0100.00615.04
7.3.330.0020.00213.34
7.3.320.0030.00313.29
7.3.310.0030.00316.32
7.3.300.0030.00316.42
7.3.290.0100.00316.32
7.3.280.0090.00916.32
7.3.270.0130.00617.40
7.3.260.0170.00318.24
7.3.250.0110.00616.43
7.3.240.0150.00916.28
7.3.230.0140.00316.55
7.3.210.0160.00016.37
7.3.200.0030.01619.39
7.3.190.0030.01316.43
7.3.180.0110.00416.50
7.3.170.0060.00916.57
7.3.160.0070.01016.66
7.3.120.0090.00614.71
7.2.330.0060.01316.61
7.2.320.0030.01316.39
7.2.310.0130.01016.81
7.2.300.0080.00816.51
7.2.290.0100.00616.64
7.2.60.0110.00016.98
7.2.00.0000.01019.05
7.1.200.0060.00615.89
7.1.100.0070.00718.11
7.1.70.0040.00817.25
7.1.60.0120.00619.17
7.1.50.0070.01316.97
7.1.00.0030.07022.34
7.0.200.0180.00415.06
7.0.140.0070.07022.01
7.0.100.0100.06319.97
7.0.90.0270.07720.00
7.0.80.0100.04719.86
7.0.70.0070.04320.01
7.0.60.0100.04020.01
7.0.50.0270.07720.39
7.0.40.0070.09319.95
7.0.30.0130.07720.17
7.0.20.0100.07720.10
7.0.10.0070.07720.18
7.0.00.0100.07720.10
5.6.280.0070.07020.89
5.6.250.0100.07320.80
5.6.240.0130.07020.53
5.6.230.0100.07320.68
5.6.220.0200.06020.67
5.6.210.0100.06720.73
5.6.200.0170.07021.14
5.6.190.0030.05020.94
5.6.180.0100.07721.09
5.6.170.0200.06721.11
5.6.160.0130.07720.95
5.6.150.0100.08321.02
5.6.140.0100.07721.06
5.6.130.0070.08020.95
5.6.120.0030.08721.18
5.6.110.0100.07021.02
5.6.100.0170.07721.11
5.6.90.0070.06721.04
5.6.80.0070.08020.39
5.6.70.0000.05720.41
5.6.60.0130.05720.32
5.6.50.0100.07320.49
5.6.40.0030.06320.40
5.6.30.0070.08020.44
5.6.20.0000.09020.32
5.6.10.0000.06720.38
5.6.00.0100.07720.42
5.5.380.0030.06020.40
5.5.370.0100.07720.43
5.5.360.0070.05020.35
5.5.350.0070.08020.41
5.5.340.0170.07020.82
5.5.330.0170.06720.90
5.5.320.0130.07320.94
5.5.310.0070.08320.87
5.5.300.0030.04320.74
5.5.290.0170.07320.89
5.5.280.0170.08020.89
5.5.270.0200.07020.88
5.5.260.0100.07720.92
5.5.250.0070.06020.61
5.5.240.0100.07020.13
5.5.230.0030.04020.21
5.5.220.0030.08020.30
5.5.210.0070.06320.31
5.5.200.0070.03720.19
5.5.190.0100.07320.21
5.5.180.0100.06720.12
5.5.160.0100.06020.19
5.5.150.0100.06320.16
5.5.140.0100.07019.96
5.5.130.0030.08320.24
5.5.120.0030.08720.21
5.5.110.0030.04320.11
5.5.100.0070.04320.11
5.5.90.0030.04320.17
5.5.80.0000.07020.08
5.5.70.0130.05720.13
5.5.60.0170.06320.06
5.5.50.0130.07020.05
5.5.40.0170.06319.95
5.5.30.0070.08320.06
5.5.20.0100.08020.15
5.5.10.0170.06320.13
5.5.00.0100.08019.95
5.4.450.0100.07719.45
5.4.440.0030.08019.50
5.4.430.0070.08019.35
5.4.420.0030.07719.45
5.4.410.0100.07719.14
5.4.400.0070.06319.07
5.4.390.0030.04719.13
5.4.380.0100.05019.10
5.4.370.0070.07019.04
5.4.360.0000.05018.92
5.4.350.0030.04018.88
5.4.340.0000.06319.07
5.4.320.0100.07018.90
5.4.310.0100.07318.85
5.4.300.0070.07719.23
5.4.290.0000.08018.84
5.4.280.0130.07318.95
5.4.270.0100.07019.24
5.4.260.0030.07319.20
5.4.250.0030.04319.15
5.4.240.0030.05018.92
5.4.230.0170.06719.17
5.4.220.0030.07018.94
5.4.210.0130.07019.04
5.4.200.0070.07019.09
5.4.190.0100.07019.03
5.4.180.0100.05019.20
5.4.170.0070.05719.03
5.4.160.0100.06318.84
5.4.150.0100.07318.85
5.4.140.0130.07016.41
5.4.130.0000.07016.33
5.4.120.0170.06016.30
5.4.110.0030.07716.36
5.4.100.0030.07716.40
5.4.90.0030.07016.39
5.4.80.0030.07316.34
5.4.70.0100.06716.32
5.4.60.0070.06016.49
5.4.50.0070.06716.47
5.4.40.0130.06716.50
5.4.30.0100.07016.35
5.4.20.0030.07316.52
5.4.10.0130.06316.31
5.4.00.0170.07315.79
5.3.290.0170.07314.69
5.3.280.0100.07714.66
5.3.270.0130.07014.54
5.3.260.0170.06314.60
5.3.250.0070.07014.62
5.3.240.0100.07014.62
5.3.230.0070.08014.66
5.3.220.0100.07314.56
5.3.210.0030.07714.68
5.3.200.0070.06314.54
5.3.190.0070.07714.63
5.3.180.0170.05314.71
5.3.170.0000.08014.64
5.3.160.0100.07014.50
5.3.150.0130.07014.67
5.3.140.0100.07014.63
5.3.130.0100.07014.65
5.3.120.0100.07014.54
5.3.110.0100.04714.54
5.3.100.0070.07014.11
5.3.90.0100.05314.01
5.3.80.0070.05013.94
5.3.70.0030.07714.08
5.3.60.0130.06713.93
5.3.50.0070.05714.09
5.3.40.0170.06314.02
5.3.30.0100.06713.82
5.3.20.0070.06013.63
5.3.10.0070.04713.66
5.3.00.0100.04713.57
5.2.170.0030.06711.62
5.2.160.0030.04011.62
5.2.150.0100.03311.62
5.2.140.0170.04711.62
5.2.130.0030.06311.62
5.2.120.0100.05311.62
5.2.110.0030.06311.62
5.2.100.0070.06311.62
5.2.90.0070.03711.62
5.2.80.0100.05311.62
5.2.70.0000.06711.62
5.2.60.0070.05311.62
5.2.50.0030.06011.62
5.2.40.0100.05311.62
5.2.30.0030.06011.62
5.2.20.0070.04311.62
5.2.10.0100.05011.62
5.2.00.0100.05311.62
5.1.60.0100.03011.62
5.1.50.0030.06311.62
5.1.40.0030.05311.62
5.1.30.0000.05011.62
5.1.20.0070.04311.62
5.1.10.0030.04011.62
5.1.00.0030.05711.62
5.0.50.0100.04011.62
5.0.40.0070.04011.62
5.0.30.0130.06711.62
5.0.20.0000.04711.62
5.0.10.0030.04711.62
5.0.00.0070.06311.62
4.4.90.0000.03711.62
4.4.80.0030.03711.62
4.4.70.0030.03311.62
4.4.60.0000.02311.62
4.4.50.0070.03011.62
4.4.40.0070.04711.62
4.4.30.0000.03711.62
4.4.20.0030.03011.62
4.4.10.0070.03011.62
4.4.00.0000.05711.62
4.3.110.0100.03011.62
4.3.100.0070.02311.62
4.3.90.0030.03311.62
4.3.80.0000.04011.62
4.3.70.0070.03011.62
4.3.60.0070.02711.62
4.3.50.0070.03011.62
4.3.40.0000.05311.62
4.3.30.0000.03711.62
4.3.20.0000.03311.62
4.3.10.0000.03711.62
4.3.00.0000.03011.62

preferences:
49.86 ms | 401 KiB | 5 Q