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->callback = '3'; // 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)
8.3.60.0070.01418.68
8.3.50.0170.00221.14
8.3.40.0110.00418.92
8.3.30.0100.00320.17
8.3.20.0080.00020.23
8.3.10.0040.00422.05
8.3.00.0000.00822.41
8.2.180.0130.00618.33
8.2.170.0060.00922.96
8.2.160.0070.00720.43
8.2.150.0000.00824.18
8.2.140.0040.00424.66
8.2.130.0140.00426.16
8.2.120.0070.00317.80
8.2.110.0030.00722.04
8.2.100.0000.01119.64
8.2.90.0040.00419.13
8.2.80.0080.00019.21
8.2.70.0030.00617.63
8.2.60.0060.00318.16
8.2.50.0000.00818.07
8.2.40.0040.00418.09
8.2.30.0030.00718.07
8.2.20.0000.00817.80
8.2.10.0040.00417.82
8.2.00.0040.00417.77
8.1.280.0070.00725.92
8.1.270.0040.00424.66
8.1.260.0000.00726.35
8.1.250.0040.00428.09
8.1.240.0050.00523.82
8.1.230.0040.00819.22
8.1.220.0000.00817.74
8.1.210.0040.00418.77
8.1.200.0060.00317.25
8.1.190.0040.00417.52
8.1.180.0040.00419.01
8.1.170.0040.00818.55
8.1.160.0070.00022.05
8.1.150.0000.00818.64
8.1.140.0000.00717.39
8.1.130.0030.00317.83
8.1.120.0050.00317.43
8.1.110.0030.00517.41
8.1.100.0040.00317.30
8.1.90.0000.00717.32
8.1.80.0000.00717.39
8.1.70.0000.00717.28
8.1.60.0030.00617.55
8.1.50.0040.00417.46
8.1.40.0030.00517.44
8.1.30.0080.00017.57
8.1.20.0030.00517.66
8.1.10.0060.00317.53
8.1.00.0040.00417.52
8.0.300.0080.00018.77
8.0.290.0000.00817.05
8.0.280.0030.00318.44
8.0.270.0030.00517.15
8.0.260.0000.00616.77
8.0.250.0030.00316.96
8.0.240.0000.00916.98
8.0.230.0000.00716.90
8.0.220.0070.00016.94
8.0.210.0030.00316.79
8.0.200.0000.00716.96
8.0.190.0110.00016.84
8.0.180.0030.00416.89
8.0.170.0030.00616.96
8.0.160.0000.00716.88
8.0.150.0050.00216.82
8.0.140.0040.00416.83
8.0.130.0000.00513.35
8.0.120.0000.00816.79
8.0.110.0040.00416.88
8.0.100.0050.00216.78
8.0.90.0000.00716.85
8.0.80.0120.00616.96
8.0.70.0000.00816.85
8.0.60.0040.00416.90
8.0.50.0040.00416.75
8.0.30.0060.01217.27
8.0.20.0120.00617.40
8.0.10.0000.00816.81
8.0.00.0100.00916.72
7.4.330.0000.00515.00
7.4.320.0000.00616.52
7.4.300.0030.00316.50
7.4.290.0040.00416.61
7.4.280.0070.00016.64
7.4.270.0070.00016.51
7.4.260.0050.00316.41
7.4.250.0000.00716.50
7.4.240.0030.00516.46
7.4.230.0000.00716.37
7.4.220.0100.01216.69
7.4.210.0050.01016.62
7.4.200.0000.00716.45
7.4.190.0000.00616.71
7.4.160.0120.00316.29
7.4.150.0100.00717.40
7.4.140.0130.00617.86
7.4.130.0080.00816.56
7.4.120.0100.01016.53
7.4.110.0050.01116.59
7.4.100.0140.00416.57
7.4.90.0110.00616.38
7.4.80.0120.00819.39
7.4.70.0100.00716.53
7.4.60.0080.00816.65
7.4.50.0000.00916.43
7.4.40.0120.00322.77
7.4.30.0090.00916.53
7.4.10.0100.01015.23
7.4.00.0070.01015.10
7.3.330.0030.00213.51
7.3.320.0000.00513.19
7.3.310.0000.00716.23
7.3.300.0070.00016.36
7.3.290.0060.00616.36
7.3.280.0060.01216.40
7.3.270.0130.00317.40
7.3.260.0140.00316.55
7.3.250.0140.00616.46
7.3.240.0150.00316.41
7.3.230.0030.01316.39
7.3.210.0120.00916.54
7.3.200.0110.00719.39
7.3.190.0130.00316.57
7.3.180.0060.00916.50
7.3.170.0110.00416.37
7.3.160.0130.00316.34
7.3.130.0000.01614.93
7.3.120.0080.01014.71
7.3.110.0080.00914.76
7.3.100.0070.01014.88
7.3.90.0100.00314.73
7.3.80.0100.00314.97
7.3.70.0060.00614.81
7.3.60.0100.00314.80
7.3.50.0060.01014.86
7.3.40.0040.00914.64
7.3.30.0040.00714.71
7.3.20.0040.01116.73
7.3.10.0020.01416.65
7.3.00.0060.00316.60
7.2.330.0110.00816.39
7.2.320.0170.00916.45
7.2.310.0090.01216.66
7.2.300.0120.00616.41
7.2.290.0090.00916.79
7.2.260.0060.01014.91
7.2.250.0100.00915.09
7.2.240.0050.01115.02
7.2.230.0060.01015.11
7.2.220.0030.01015.02
7.2.210.0020.01315.10
7.2.200.0060.00615.18
7.2.190.0060.01015.10
7.2.180.0070.01015.05
7.2.170.0080.00514.79
7.2.160.0060.00915.13
7.2.150.0030.01316.95
7.2.140.0000.01316.78
7.2.130.0030.01016.91
7.2.120.0040.00816.73
7.2.110.0130.00016.95
7.2.100.0000.01116.93
7.2.90.0090.00616.88
7.2.80.0000.01316.89
7.2.70.0060.00916.88
7.2.60.0070.00716.88
7.2.50.0040.01416.97
7.2.40.0080.00416.87
7.2.30.0070.00416.74
7.2.20.0030.01016.90
7.2.10.0120.00316.99
7.2.00.0070.00716.78
7.1.330.0030.01015.94
7.1.320.0060.01015.95
7.1.310.0020.00915.79
7.1.300.0080.00715.63
7.1.290.0030.01015.64
7.1.280.0050.00515.79
7.1.270.0100.00415.78
7.1.260.0070.00415.66
7.1.250.0030.01015.73
7.1.240.0060.00616.00
7.1.230.0050.00515.89
7.1.220.0080.00015.55
7.1.210.0100.00315.78
7.1.200.0050.00815.80
7.1.190.0060.00315.82
7.1.180.0060.00615.76
7.1.170.0080.00415.82
7.1.160.0030.00715.69
7.1.150.0030.01015.86
7.1.140.0110.00315.91
7.1.130.0060.00615.87
7.1.120.0030.00615.91
7.1.110.0080.00015.50
7.1.100.0030.01015.66
7.1.90.0060.00615.64
7.1.80.0030.00615.76
7.1.70.0030.00916.55
7.1.60.0080.00817.47
7.1.50.0090.00316.40
7.1.40.0070.00715.81
7.1.30.0030.00915.68
7.1.20.0030.01015.63
7.1.10.0030.01015.78
7.1.00.0040.02219.02
7.0.330.0030.01015.02
7.0.320.0000.00715.24
7.0.310.0000.01015.42
7.0.300.0040.01115.00
7.0.290.0070.00315.37
7.0.280.0040.00415.36
7.0.270.0080.00815.33
7.0.260.0030.00915.22
7.0.250.0030.00915.32
7.0.240.0070.00715.15
7.0.230.0040.00815.06
7.0.220.0080.00815.48
7.0.210.0110.00015.38
7.0.200.0030.00516.13
7.0.190.0110.00415.25
7.0.180.0040.00415.52
7.0.170.0100.00315.49
7.0.160.0050.01015.50
7.0.150.0030.01015.16
7.0.140.0030.04318.76
7.0.130.0120.00315.20
7.0.120.0120.00015.36
7.0.110.0000.01415.19
7.0.100.0100.00315.30
7.0.90.0070.00315.11
7.0.80.0060.00315.05
7.0.70.0040.00415.40
7.0.60.0100.04317.67
7.0.50.0100.03616.65
7.0.40.0070.04917.02
7.0.30.0170.04616.95
7.0.20.0170.04517.04
7.0.10.0090.04817.00
7.0.00.0060.03116.92
5.6.400.0080.00014.37
5.6.390.0030.01014.25
5.6.380.0040.00714.69
5.6.370.0070.00714.12
5.6.360.0060.00314.37
5.6.350.0040.00814.43
5.6.340.0070.00714.20
5.6.330.0060.01014.39
5.6.320.0070.00414.18
5.6.310.0030.01014.59
5.6.300.0040.01114.50
5.6.290.0000.01514.57
5.6.280.0030.04017.65
5.6.270.0070.00714.55
5.6.260.0070.00714.39
5.6.250.0030.01014.29
5.6.240.0100.00614.66
5.6.230.0040.01214.34
5.6.220.0030.00614.73
5.6.210.0110.03817.47
5.6.200.0090.02016.25
5.6.190.0030.04217.36
5.6.180.0190.04417.54
5.6.170.0130.02617.34
5.6.160.0060.02317.57
5.6.150.0120.03816.51
5.6.140.0020.02516.23
5.6.130.0080.04216.23
5.6.120.0150.03817.61
5.6.110.0080.04617.67
5.6.100.0080.03117.81
5.6.90.0060.02917.63
5.6.80.0070.04417.29
5.6.70.0160.00014.29
5.6.60.0040.00714.12
5.6.50.0030.00714.51
5.6.40.0070.00714.14
5.6.30.0030.01314.05
5.6.20.0030.00914.38
5.6.10.0070.00714.19
5.6.00.0140.00314.29
5.5.380.0090.00614.12
5.5.370.0030.01014.27
5.5.360.0000.01114.14
5.5.350.1850.02317.56
5.5.340.0070.03916.16
5.5.330.0060.04517.27
5.5.320.0250.03617.40
5.5.310.0080.02917.36
5.5.300.0050.01916.11
5.5.290.0050.04516.19
5.5.280.0050.04817.65
5.5.270.0020.04917.58
5.5.260.0050.03417.61
5.5.250.0110.03917.43
5.5.240.0030.03717.32
5.5.230.0090.00614.14
5.5.220.0150.00314.02
5.5.210.0040.00813.98
5.5.200.0070.00714.34
5.5.190.0030.01014.07
5.5.180.0030.00614.34
5.5.170.0040.01214.49
5.5.160.0000.01714.23
5.5.150.0080.00414.48
5.5.140.0040.01214.04
5.5.130.0030.01014.30
5.5.120.0040.01114.00
5.5.110.0080.00813.80
5.5.100.0040.00414.37
5.5.90.0040.00714.49
5.5.80.0000.00814.49
5.5.70.0060.00614.30
5.5.60.0030.01014.13
5.5.50.0060.00614.07
5.5.40.0120.00314.02
5.5.30.0100.00714.28
5.5.20.0100.00313.89
5.5.10.0090.00613.82
5.5.00.0100.00614.02
5.4.450.0100.02716.68
5.4.440.0150.02316.72
5.4.430.0180.02716.53
5.4.420.0080.04716.67
5.4.410.0170.03316.58
5.4.400.0100.02516.51
5.4.390.0140.02416.44
5.4.380.0130.03516.52
5.4.370.0150.03716.43
5.4.360.0100.03516.45
5.4.350.0130.03816.47
5.4.340.0120.03416.44
5.4.330.0000.01113.80
5.4.320.0100.02716.42
5.4.310.0150.03816.48
5.4.300.0130.02216.46
5.4.290.0120.02516.51
5.4.280.0100.03316.42
5.4.270.0150.02616.44
5.4.260.0150.03616.33
5.4.250.0120.02316.38
5.4.240.0140.02416.37
5.4.230.0070.02816.47
5.4.220.0140.02216.39
5.4.210.0100.02516.32
5.4.200.0160.04016.37
5.4.190.0150.02816.42
5.4.180.0170.03316.55
5.4.170.0180.03616.32
5.4.160.0120.03016.38
5.4.150.0170.02316.49
5.4.140.0130.02815.08
5.4.130.0130.03515.07
5.4.120.0150.01815.07
5.4.110.0150.03015.04
5.4.100.0170.03815.03
5.4.90.0120.03315.13
5.4.80.0140.03615.09
5.4.70.0080.02315.16
5.4.60.0180.02815.11
5.4.50.0150.03515.18
5.4.40.0070.02315.18
5.4.30.0070.02315.14
5.4.20.0110.02015.16
5.4.10.0130.03015.06
5.4.00.0100.02314.87
5.3.290.0150.02814.20
5.3.280.0150.03814.24
5.3.270.0140.04014.16
5.3.260.0150.04214.23
5.3.250.0130.03914.19
5.3.240.0100.03014.28
5.3.230.0050.03314.24
5.3.220.0140.03214.14
5.3.210.0130.04314.18
5.3.200.0080.02914.19
5.3.190.0170.02214.29
5.3.180.0080.02914.17
5.3.170.0170.02514.18
5.3.160.0150.03614.14
5.3.150.0100.02214.16
5.3.140.0070.03014.17
5.3.130.0100.02514.16
5.3.120.0080.02714.13
5.3.110.0080.03014.21
5.3.100.0100.02113.87
5.3.90.0100.02113.92
5.3.80.0060.02313.97
5.3.70.0130.02013.93
5.3.60.0090.02413.89
5.3.50.0070.02113.88
5.3.40.0110.03113.88
5.3.30.0080.02013.82
5.3.20.0120.01713.78
5.3.10.0080.02113.68
5.3.00.0080.02013.75
5.2.170.0100.03012.73
5.2.160.0130.03012.73
5.2.150.0100.03012.73
5.2.140.0170.02312.73
5.2.130.0230.05012.73
5.2.120.0170.02312.73
5.2.110.0170.05012.73
5.2.100.0130.02712.73
5.2.90.0070.03312.73
5.2.80.0100.03312.73
5.2.70.0130.02712.73
5.2.60.0130.03012.23
5.2.50.0170.02312.23
5.2.40.0170.03012.23
5.2.30.0200.01712.23
5.2.20.0170.02012.23
5.2.10.0070.03012.23
5.2.00.0070.03012.23
5.1.60.0070.02712.23
5.1.50.0130.02012.23
5.1.40.0170.01712.23
5.1.30.0070.02712.23
5.1.20.0100.02312.23
5.1.10.0070.02712.23
5.1.00.0070.02712.23
5.0.50.0070.01712.23
5.0.40.0070.01712.23
5.0.30.0070.03712.23
5.0.20.0000.02012.23
5.0.10.0070.01312.23
5.0.00.0030.03012.23
4.4.90.0100.01312.23
4.4.80.0000.02012.23
4.4.70.0030.01712.23
4.4.60.0030.01712.23
4.4.50.0070.01012.23
4.4.40.0000.02712.23
4.4.30.0070.01312.23
4.4.20.0030.01712.23
4.4.10.0100.01312.23
4.4.00.0070.02312.23
4.3.110.0000.01712.23
4.3.100.0070.01012.23
4.3.90.0030.01312.23
4.3.80.0000.02712.23
4.3.70.0030.01712.23
4.3.60.0030.01712.23
4.3.50.0070.01312.23
4.3.40.0030.02312.23
4.3.30.0030.01312.23
4.3.20.0000.02012.23
4.3.10.0030.01712.23
4.3.00.0030.03012.23

preferences:
38.42 ms | 401 KiB | 5 Q