3v4l.org

run code in 300+ PHP versions simultaneously
<?php /* Challenge 1: Read and write to 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; } } $test = new Test; // start editing here class Intercept { public function getKey($test) { $array = (array) $test; print_r($test[0]); } } $intercept = new Intercept; $intercept->getKey($test); // 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)
8.3.70.0110.00718.53
8.3.60.0120.00916.88
8.3.50.0250.00722.12
8.3.40.0250.00418.79
8.3.30.0210.00019.04
8.3.20.0140.00420.33
8.3.10.0080.00023.66
8.3.00.0060.00319.13
8.2.180.0090.00618.28
8.2.170.0170.00322.96
8.2.160.0060.00920.57
8.2.150.0090.00024.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0040.00422.08
8.2.110.0070.00321.00
8.2.100.0040.00817.84
8.2.90.0040.00419.18
8.2.80.0030.00517.97
8.2.70.0000.00817.63
8.2.60.0000.00818.03
8.2.50.0040.00418.10
8.2.40.0050.00320.01
8.2.30.0040.00417.94
8.2.20.0070.00017.77
8.2.10.0000.00717.94
8.2.00.0040.00717.66
8.1.280.0270.00825.92
8.1.270.0070.00323.99
8.1.260.0080.00026.35
8.1.250.0080.00028.09
8.1.240.0040.00422.74
8.1.230.0080.00317.58
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0070.00317.23
8.1.190.0040.00417.23
8.1.180.0030.00518.10
8.1.170.0000.01018.57
8.1.160.0040.00421.95
8.1.150.0100.00018.63
8.1.140.0040.00417.38
8.1.130.0030.00317.84
8.1.120.0040.00417.36
8.1.110.0030.00617.30
8.1.100.0000.00717.28
8.1.90.0050.00317.43
8.1.80.0070.00017.29
8.1.70.0070.00017.39
8.1.60.0030.00617.60
8.1.50.0030.00517.41
8.1.40.0040.00417.53
8.1.30.0000.00817.53
8.1.20.0040.00417.61
8.1.10.0040.00417.55
8.1.00.0000.00717.47
8.0.300.0040.00418.77
8.0.290.0040.00416.63
8.0.280.0030.00418.43
8.0.270.0000.00717.07
8.0.260.0060.00017.24
8.0.250.0000.00716.93
8.0.240.0040.00416.93
8.0.230.0050.00217.02
8.0.220.0000.00716.77
8.0.210.0020.00516.94
8.0.200.0030.00317.04
8.0.190.0000.00716.95
8.0.180.0070.00316.90
8.0.170.0000.00816.95
8.0.160.0040.00417.03
8.0.150.0040.00416.86
8.0.140.0050.00216.84
8.0.130.0090.00013.32
8.0.120.0060.00316.74
8.0.110.0000.00716.81
8.0.100.0080.00016.84
8.0.90.0070.00016.81
8.0.80.0150.00616.87
8.0.70.0000.00716.80
8.0.60.0000.00716.73
8.0.50.0000.00816.77
8.0.30.0170.00817.08
8.0.20.0090.00917.40
8.0.10.0000.00716.96
8.0.00.0110.00916.86
7.4.330.0030.00315.00
7.4.320.0030.00316.58
7.4.300.0000.00616.55
7.4.290.0040.00416.62
7.4.280.0030.00416.52
7.4.270.0000.00716.60
7.4.260.0070.00016.61
7.4.250.0070.00016.45
7.4.240.0050.00216.52
7.4.230.0000.00816.40
7.4.220.0100.00716.47
7.4.210.0030.01116.52
7.4.200.0000.00816.49
7.4.190.0000.00716.49
7.4.160.0030.01316.33
7.4.150.0160.01017.40
7.4.140.0140.00317.86
7.4.130.0080.00816.39
7.4.120.0090.00816.44
7.4.110.0120.01216.54
7.4.100.0160.00316.51
7.4.90.0110.00716.65
7.4.80.0160.01019.39
7.4.70.0090.00616.41
7.4.60.0130.00416.66
7.4.50.0000.00916.46
7.4.40.0100.00322.77
7.4.30.0130.00316.49
7.4.00.0070.00715.04
7.3.330.0020.00413.25
7.3.320.0030.00313.41
7.3.310.0070.00016.48
7.3.300.0050.00216.45
7.3.290.0070.00716.38
7.3.280.0040.01416.34
7.3.270.0090.00917.40
7.3.260.0360.02316.42
7.3.250.0080.01116.44
7.3.240.0120.00616.54
7.3.230.0150.00916.41
7.3.210.0100.01316.56
7.3.200.0170.00619.39
7.3.190.0100.00716.43
7.3.180.0130.00316.24
7.3.170.0040.01216.28
7.3.160.0030.01316.34
7.3.120.0060.00614.85
7.2.330.0070.01016.33
7.2.320.0080.00816.68
7.2.310.0030.01416.62
7.2.300.0090.00816.46
7.2.290.0070.01016.73
7.2.60.0060.00616.63
7.2.00.0000.01319.61
7.1.200.0090.00315.71
7.1.100.0030.00917.98
7.1.70.0040.00416.89
7.1.60.0070.01519.46
7.1.50.0100.01016.95
7.1.00.0100.07022.51
7.0.200.4320.00314.83
7.0.140.0070.07022.18
7.0.100.0000.04319.91
7.0.90.0130.04319.87
7.0.80.0070.03719.99
7.0.70.0130.05019.90
7.0.60.0070.07320.02
7.0.50.0100.07020.32
7.0.40.0100.07320.03
7.0.30.0030.08320.19
7.0.20.0100.07720.15
7.0.10.0070.08720.17
7.0.00.0070.08320.12
5.6.280.0070.06721.07
5.6.250.0070.03720.63
5.6.240.0100.04320.77
5.6.230.0030.06020.69
5.6.220.0130.07320.66
5.6.210.0000.08020.59
5.6.200.0130.07721.05
5.6.190.0030.08321.04
5.6.180.0100.06721.03
5.6.170.0100.07720.96
5.6.160.0200.07321.02
5.6.150.0100.07721.05
5.6.140.0200.05321.14
5.6.130.0100.08021.18
5.6.120.0130.07321.05
5.6.110.0130.07721.17
5.6.100.0130.08321.04
5.6.90.0100.08021.03
5.6.80.0100.07720.50
5.6.70.0070.08020.52
5.6.60.0070.07720.56
5.6.50.0070.04020.50
5.6.40.0200.06720.44
5.6.30.0070.08320.33
5.6.20.0100.06320.53
5.6.10.0100.08020.47
5.6.00.0100.04720.39
5.5.380.0030.04720.37
5.5.370.0030.04320.36
5.5.360.0030.05320.42
5.5.350.0170.07020.34
5.5.340.0030.06320.88
5.5.330.0100.08020.94
5.5.320.0030.09020.93
5.5.310.0130.07320.91
5.5.300.0200.07720.77
5.5.290.0170.06720.94
5.5.280.0100.08020.81
5.5.270.0030.09020.92
5.5.260.0070.05720.87
5.5.250.0070.05020.63
5.5.240.0030.07720.23
5.5.230.0070.08020.21
5.5.220.0070.04720.25
5.5.210.0030.05020.27
5.5.200.0100.07720.28
5.5.190.0100.07020.25
5.5.180.0100.05020.27
5.5.160.0030.08020.20
5.5.150.0070.08020.25
5.5.140.0130.04020.23
5.5.130.0130.07020.13
5.5.120.0030.07720.27
5.5.110.0130.07320.19
5.5.100.0170.06320.08
5.5.90.0130.07320.08
5.5.80.0200.06320.05
5.5.70.0030.09020.16
5.5.60.0130.08020.04
5.5.50.0130.07320.01
5.5.40.0100.05320.10
5.5.30.0130.07320.09
5.5.20.0130.07020.07
5.5.10.0070.08020.05
5.5.00.0100.05720.04
5.4.450.0070.05019.43
5.4.440.0170.08019.36
5.4.430.0170.07319.55
5.4.420.0030.08719.42
5.4.410.0000.08319.25
5.4.400.0100.07719.14
5.4.390.0230.06319.15
5.4.380.0030.08019.23
5.4.370.0100.07719.16
5.4.360.0030.04019.14
5.4.350.0030.05018.90
5.4.340.0100.07718.89
5.4.320.0170.07019.13
5.4.310.0030.07718.85
5.4.300.0030.05318.88
5.4.290.0100.06719.04
5.4.280.0030.06319.10
5.4.270.0130.06319.13
5.4.260.0030.07318.95
5.4.250.0070.07018.91
5.4.240.0030.07018.87
5.4.230.0030.07719.23
5.4.220.0200.06719.12
5.4.210.0100.07019.02
5.4.200.0070.08018.91
5.4.190.0070.07319.05
5.4.180.0030.04719.02
5.4.170.0030.05019.02
5.4.160.0100.07018.93
5.4.150.0030.08019.02
5.4.140.0130.07016.39
5.4.130.0130.06716.38
5.4.120.0100.05716.39
5.4.110.0100.06716.41
5.4.100.0070.05716.41
5.4.90.0070.07316.48
5.4.80.0100.06316.34
5.4.70.0070.07016.46
5.4.60.0070.07316.40
5.4.50.0100.07016.39
5.4.40.0000.08716.46
5.4.30.0030.07316.30
5.4.20.0170.06016.48
5.4.10.0030.07316.30
5.4.00.0100.07715.85
5.3.290.0130.06714.77
5.3.280.0100.07014.74
5.3.270.0070.07314.57
5.3.260.0030.07314.54
5.3.250.0070.04314.63
5.3.240.0000.08014.68
5.3.230.0070.07014.71
5.3.220.0070.08014.52
5.3.210.0030.08014.68
5.3.200.0070.07714.68
5.3.190.0070.08314.63
5.3.180.0100.07014.63
5.3.170.0130.06314.51
5.3.160.0070.07314.64
5.3.150.0070.04014.59
5.3.140.0130.04314.68
5.3.130.0070.07314.69
5.3.120.0070.03714.54
5.3.110.0000.08314.63
5.3.100.0070.07314.19
5.3.90.0100.07014.14
5.3.80.0130.06714.16
5.3.70.0130.07014.01
5.3.60.0100.07713.98
5.3.50.0070.05014.00
5.3.40.0000.07314.07
5.3.30.0070.04314.01
5.3.20.0030.08013.77
5.3.10.0070.07713.67
5.3.00.0070.07713.53
5.2.170.0030.05711.02
5.2.160.0100.05711.18
5.2.150.0100.05711.09
5.2.140.0030.06311.16
5.2.130.0070.03711.21
5.2.120.0000.06311.12
5.2.110.0030.06311.14
5.2.100.0000.05711.17
5.2.90.0100.05711.03
5.2.80.0030.06011.02
5.2.70.0070.06311.24
5.2.60.0030.06711.08
5.2.50.0100.06311.05
5.2.40.0030.06710.95
5.2.30.0070.06011.05
5.2.20.0030.06311.02
5.2.10.0070.06010.82
5.2.00.0030.06310.79
5.1.60.0070.05010.06
5.1.50.0030.05010.06
5.1.40.0130.05010.05
5.1.30.0000.06310.48
5.1.20.0130.05010.42
5.1.10.0100.05310.18
5.1.00.0030.0579.96
5.0.50.0030.0478.57
5.0.40.0070.0438.49
5.0.30.0030.0638.31
5.0.20.0000.0508.31
5.0.10.0000.0478.31
5.0.00.0000.0678.31
4.4.90.0070.0308.31
4.4.80.0000.0378.31
4.4.70.0070.0308.31
4.4.60.0000.0408.31
4.4.50.0030.0338.31
4.4.40.0030.0538.31
4.4.30.0070.0338.31
4.4.20.0070.0338.31
4.4.10.0070.0338.31
4.4.00.0000.0578.31
4.3.110.0070.0308.31
4.3.100.0000.0378.31
4.3.90.0000.0278.31
4.3.80.0030.0538.31
4.3.70.0000.0338.31
4.3.60.0000.0378.31
4.3.50.0030.0378.31
4.3.40.0030.0508.31
4.3.30.0030.0338.31
4.3.20.0070.0308.31
4.3.10.0000.0338.31
4.3.00.0030.0338.31

preferences:
65.65 ms | 401 KiB | 5 Q