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 $callback = array($callback, 'secret'); $callback(); // 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)
8.3.60.0070.01418.30
8.3.50.0130.00521.14
8.3.40.0040.01118.82
8.3.30.0070.00720.34
8.3.20.0000.00720.16
8.3.10.0080.00022.05
8.3.00.0030.00522.34
8.2.180.0040.01525.92
8.2.170.0120.00319.00
8.2.160.0110.00422.96
8.2.150.0060.00325.66
8.2.140.0050.00324.66
8.2.130.0080.00026.16
8.2.120.0120.00319.54
8.2.110.0030.00621.98
8.2.100.0050.00519.25
8.2.90.0000.00819.17
8.2.80.0090.00019.24
8.2.70.0030.00617.63
8.2.60.0110.00018.05
8.2.50.0090.00018.07
8.2.40.0050.00318.03
8.2.30.0020.00518.06
8.2.20.0050.00317.72
8.2.10.0000.00817.70
8.2.00.0020.00517.70
8.1.280.0070.01125.92
8.1.270.0140.00324.66
8.1.260.0040.00426.35
8.1.250.0030.00628.09
8.1.240.0090.00023.86
8.1.230.0040.00819.15
8.1.220.0030.00517.74
8.1.210.0030.00718.77
8.1.200.0030.00617.35
8.1.190.0080.00017.42
8.1.180.0000.00820.11
8.1.170.0040.00418.59
8.1.160.0000.00722.07
8.1.150.0000.00818.64
8.1.140.0020.00517.52
8.1.130.0040.00417.47
8.1.120.0000.00717.48
8.1.110.0000.00717.35
8.1.100.0050.00317.51
8.1.90.0040.00417.48
8.1.80.0000.00717.49
8.1.70.0030.00317.45
8.1.60.0080.00017.57
8.1.50.0070.00017.56
8.1.40.0000.00817.51
8.1.30.0080.00017.54
8.1.20.0050.00317.50
8.1.10.0030.00517.57
8.1.00.0000.01017.53
8.0.300.0040.00418.77
8.0.290.0060.00317.18
8.0.280.0030.00718.37
8.0.270.0030.00317.17
8.0.260.0070.00016.91
8.0.250.0030.00317.03
8.0.240.0000.00817.05
8.0.230.0000.00717.03
8.0.220.0040.00316.86
8.0.210.0000.00716.90
8.0.200.0030.00517.03
8.0.190.0040.00416.93
8.0.180.0090.00017.05
8.0.170.0000.00916.92
8.0.160.0040.00416.80
8.0.150.0030.00316.92
8.0.140.0040.00416.89
8.0.130.0050.00213.36
8.0.120.0000.00816.85
8.0.110.0070.00016.99
8.0.100.0030.00516.84
8.0.90.0040.00416.93
8.0.80.0060.01016.92
8.0.70.0030.00616.93
8.0.60.0040.00416.85
8.0.50.0040.00416.84
8.0.30.0100.00917.10
8.0.20.0090.01217.40
8.0.10.0030.00516.96
8.0.00.0090.00916.84
7.4.330.0000.00515.14
7.4.320.0000.00616.46
7.4.300.0070.00016.55
7.4.290.0030.00316.44
7.4.280.0000.00716.52
7.4.270.0020.00516.51
7.4.260.0030.00316.63
7.4.250.0050.00216.50
7.4.240.0020.00516.60
7.4.230.0040.00416.63
7.4.220.0090.00616.46
7.4.210.0060.01316.68
7.4.200.0030.00316.62
7.4.190.0000.00716.47
7.4.160.0130.00316.62
7.4.150.0070.01017.40
7.4.140.0110.00817.86
7.4.130.0140.01016.54
7.4.120.0090.01216.49
7.4.110.0150.00916.41
7.4.100.0070.01516.71
7.4.90.0100.00716.59
7.4.80.0150.00819.39
7.4.70.0090.00916.55
7.4.60.0030.01316.61
7.4.50.0030.00516.36
7.4.40.0120.00022.77
7.4.30.0100.00616.58
7.4.10.0130.00314.78
7.4.00.0080.00815.14
7.3.330.0000.00513.21
7.3.320.0030.00313.37
7.3.310.0050.00316.33
7.3.300.0060.00016.34
7.3.290.0040.01316.34
7.3.280.0100.00716.35
7.3.270.0100.00717.40
7.3.260.0000.01616.53
7.3.250.0100.01316.35
7.3.240.0100.00616.51
7.3.230.0030.01516.44
7.3.210.0120.00616.43
7.3.200.0130.00319.39
7.3.190.0030.01416.51
7.3.180.0080.01216.54
7.3.170.0070.01416.46
7.3.160.0130.00316.41
7.3.130.0100.00715.03
7.3.120.0070.01015.04
7.3.110.0100.00714.69
7.3.100.0030.01314.87
7.3.90.0030.01214.74
7.3.80.0110.00314.80
7.3.70.0000.01614.68
7.3.60.0070.00714.88
7.3.50.0000.00914.68
7.3.40.0090.00014.86
7.3.30.0080.00414.53
7.3.20.0060.00616.83
7.3.10.0090.00616.71
7.3.00.0100.00316.49
7.2.330.0120.00616.48
7.2.320.0050.01316.45
7.2.310.0070.01516.37
7.2.300.0060.01116.70
7.2.290.0070.01316.43
7.2.260.0030.01415.21
7.2.250.0070.01115.20
7.2.240.0030.01214.98
7.2.230.0070.01014.64
7.2.220.0030.01214.95
7.2.210.0030.00614.96
7.2.200.0040.01115.02
7.2.190.0030.01015.10
7.2.180.0070.00714.93
7.2.170.0100.00614.82
7.2.160.0030.01015.03
7.2.150.0030.00616.90
7.2.140.0060.00916.85
7.2.130.0070.00316.69
7.2.120.0040.01116.91
7.2.110.0120.00016.99
7.2.100.0040.01116.82
7.2.90.0080.00416.66
7.2.80.0060.00616.79
7.2.70.0070.01017.01
7.2.60.0080.00516.92
7.2.50.0030.01016.73
7.2.40.0000.01617.07
7.2.30.0110.00717.16
7.2.20.0030.00716.84
7.2.10.0050.00517.12
7.2.00.0030.00918.26
7.1.330.0030.01115.43
7.1.320.0060.00915.43
7.1.310.0060.01015.47
7.1.300.0000.00915.61
7.1.290.0040.00715.55
7.1.280.0040.01115.76
7.1.270.0070.00715.77
7.1.260.0070.00415.64
7.1.250.0080.00815.50
7.1.240.0030.00615.44
7.1.230.0070.00715.46
7.1.220.0070.00715.82
7.1.210.0090.00615.52
7.1.200.0030.00915.69
7.1.190.0000.01215.81
7.1.180.0030.01015.80
7.1.170.0060.00615.48
7.1.160.0000.01615.59
7.1.150.0040.00715.47
7.1.140.0040.00815.84
7.1.130.0000.01315.34
7.1.120.0070.00415.78
7.1.110.0060.00915.78
7.1.100.0080.00515.64
7.1.90.0040.00715.73
7.1.80.0060.00615.61
7.1.70.0020.00616.39
7.1.60.0060.00616.35
7.1.50.0070.00416.18
7.1.40.0040.01115.39
7.1.30.0000.01115.83
7.1.20.0030.00615.84
7.1.10.0080.00515.32
7.1.00.0070.02318.89
7.0.330.0070.00715.42
7.0.320.0040.00815.43
7.0.310.0000.01215.24
7.0.300.0030.00915.41
7.0.290.0080.00015.38
7.0.280.0070.00715.38
7.0.270.0040.00715.19
7.0.260.0110.00015.43
7.0.250.0110.00415.31
7.0.240.0050.00615.20
7.0.230.0050.00515.30
7.0.220.0030.01015.27
7.0.210.0030.00915.23
7.0.200.0100.00315.88
7.0.190.0030.01215.47
7.0.180.0090.00315.13
7.0.170.0070.00715.50
7.0.160.0000.01315.46
7.0.150.0060.00615.51
7.0.140.0040.03718.71
7.0.130.0060.01015.47
7.0.120.0090.00315.50
7.0.110.0100.00015.36
7.0.100.0030.01315.17
7.0.90.0050.00515.07
7.0.80.0000.01715.48
7.0.70.0030.01415.27
7.0.60.0120.03417.68
7.0.50.0060.04616.52
7.0.40.0080.04616.80
7.0.30.0140.02716.66
7.0.20.0200.03316.84
7.0.10.0050.03616.76
7.0.00.0060.03816.78
5.6.400.0000.00914.25
5.6.390.0000.01014.69
5.6.380.0030.00914.45
5.6.370.0070.00314.41
5.6.360.0000.00914.42
5.6.350.0120.00313.97
5.6.340.0000.01114.30
5.6.330.0170.00014.54
5.6.320.0060.00614.41
5.6.310.0070.00314.37
5.6.300.0140.00014.51
5.6.290.0090.00614.72
5.6.280.0030.04317.54
5.6.270.0060.00914.20
5.6.260.0070.00714.58
5.6.250.0070.00314.41
5.6.240.0060.00914.25
5.6.230.0160.00314.05
5.6.220.0110.01114.64
5.6.210.0030.04817.63
5.6.200.0080.02516.28
5.6.190.0100.04717.43
5.6.180.0130.02717.49
5.6.170.0130.04217.56
5.6.160.0050.04317.51
5.6.150.0030.02416.46
5.6.140.0070.03316.28
5.6.130.0050.04316.27
5.6.120.0020.03617.56
5.6.110.0060.04017.69
5.6.100.0110.04317.58
5.6.90.0060.02417.70
5.6.80.0080.02317.33
5.6.70.0030.00614.02
5.6.60.0110.00713.96
5.6.50.0070.01114.41
5.6.40.0000.00814.11
5.6.30.0000.01014.20
5.6.20.0030.00914.14
5.6.10.0040.01114.29
5.6.00.0130.00014.29
5.5.380.0030.01314.21
5.5.370.0100.01014.02
5.5.360.0050.00313.90
5.5.350.1600.02017.42
5.5.340.0050.04615.94
5.5.330.0100.04117.29
5.5.320.0200.04417.14
5.5.310.0200.04017.39
5.5.300.0050.02216.16
5.5.290.0050.03316.03
5.5.280.0050.03817.68
5.5.270.0020.04017.62
5.5.260.0120.04117.30
5.5.250.0080.02017.36
5.5.240.0080.04217.27
5.5.230.0110.00414.25
5.5.220.0140.00014.11
5.5.210.0030.00614.16
5.5.200.0040.00714.24
5.5.190.0030.00913.91
5.5.180.0110.00413.81
5.5.170.0060.00314.29
5.5.160.0040.01114.41
5.5.150.0060.00314.10
5.5.140.0030.00814.00
5.5.130.0030.00914.43
5.5.120.0000.01413.85
5.5.110.0050.00514.16
5.5.100.0080.00814.09
5.5.90.0070.00714.31
5.5.80.0070.00714.07
5.5.70.0030.00714.09
5.5.60.0060.00913.91
5.5.50.0060.00614.07
5.5.40.0060.00614.01
5.5.30.0070.00714.06
5.5.20.0040.01214.27
5.5.10.0070.00714.18
5.5.00.0050.00513.77
5.4.450.0150.04015.27
5.4.440.0150.03015.32
5.4.430.0180.02515.29
5.4.420.0130.03815.24
5.4.410.0120.04014.97
5.4.400.0220.03214.99
5.4.390.0350.03314.90
5.4.380.0150.03214.87
5.4.370.0520.02314.83
5.4.360.0500.02914.76
5.4.350.0090.02811.45
5.4.340.0070.02011.49
5.4.330.0100.00011.19
5.4.320.0050.02211.75
5.4.310.0040.02411.61
5.4.300.0050.02011.70
5.4.290.0050.02011.81
5.4.280.0050.02011.69
5.4.270.0050.01911.75
5.4.260.0080.02411.62
5.4.250.0020.03714.82
5.4.240.0050.03214.70
5.4.230.0050.04314.76
5.4.220.0110.03614.88
5.4.210.0140.03014.97
5.4.200.0160.02314.85
5.4.190.0100.03714.75
5.4.180.0080.03314.82
5.4.170.0040.02914.99
5.4.160.0080.02815.03
5.4.150.0080.02814.98
5.4.140.0050.04013.71
5.4.130.0070.02713.60
5.4.120.0100.03213.78
5.4.110.0130.03713.52
5.4.100.0060.03513.63
5.4.90.0080.03013.67
5.4.80.0100.03213.80
5.4.70.0080.02513.57
5.4.60.0100.03013.68
5.4.50.0030.03113.71
5.4.40.0060.02613.72
5.4.30.0130.02013.59
5.4.20.0060.04013.47
5.4.10.0090.02813.77
5.4.00.0080.02613.54
5.3.290.0050.02211.71
5.3.280.0050.03112.64
5.3.270.0110.03312.59
5.3.260.0120.04512.61
5.3.250.0090.02812.71
5.3.240.0070.02812.49
5.3.230.0070.03212.56
5.3.220.0070.03812.56
5.3.210.0100.02912.47
5.3.200.0050.02812.58
5.3.190.0140.02512.56
5.3.180.0050.03112.71
5.3.170.0090.02512.61
5.3.160.0110.02212.47
5.3.150.0040.03412.70
5.3.140.0020.03312.65
5.3.130.0030.03512.52
5.3.120.0050.04512.54
5.3.110.0170.03212.49
5.3.100.0070.03312.41
5.3.90.0030.03012.31
5.3.80.0080.03812.13
5.3.70.0040.03412.16
5.3.60.0070.02912.23
5.3.50.0070.03412.24
5.3.40.0030.03112.06
5.3.30.0110.03412.18
5.3.20.0050.03312.04
5.3.10.0030.04211.95
5.3.00.0030.02911.88
5.2.170.0130.05011.16
5.2.160.0030.05711.22
5.2.150.0170.04711.22
5.2.140.0030.05311.23
5.2.130.0030.04311.18
5.2.120.0070.05011.19
5.2.110.0070.05311.01
5.2.100.0000.06011.32
5.2.90.0030.04011.15
5.2.80.0100.05711.08
5.2.70.0030.04311.17
5.2.60.0000.04711.04
5.2.50.0070.04011.02
5.2.40.0130.03311.00
5.2.30.0070.05011.06
5.2.20.0070.05010.93
5.2.10.0030.04311.04
5.2.00.0030.04310.89
5.1.60.0070.0379.92
5.1.50.0100.03010.20
5.1.40.0130.0379.95
5.1.30.0070.03310.42
5.1.20.0000.04310.34
5.1.10.0030.03710.13
5.1.00.0170.03710.16
5.0.50.0030.0338.52
5.0.40.0100.0208.38
5.0.30.0000.0438.25
5.0.20.0000.0308.43
5.0.10.0130.0208.14
5.0.00.0070.0538.14
4.4.90.0100.0237.30
4.4.80.0070.0207.30
4.4.70.0030.0237.30
4.4.60.0100.0237.30
4.4.50.0030.0207.30
4.4.40.0070.0337.30
4.4.30.0070.0177.30
4.4.20.0070.0177.30
4.4.10.0100.0177.30
4.4.00.0000.0507.30
4.3.110.0000.0307.30
4.3.100.0030.0207.30
4.3.90.0070.0177.30
4.3.80.0030.0377.30
4.3.70.0070.0237.30
4.3.60.0100.0137.30
4.3.50.0030.0237.30
4.3.40.0000.0337.30
4.3.30.0070.0277.30
4.3.20.0030.0237.30
4.3.10.0070.0177.30
4.3.00.0000.0236.46

preferences:
44.41 ms | 401 KiB | 5 Q