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; } } $test = new Test; // start editing here function caesar($str, $n) { $ret = ""; for($i = 0, $l = strlen($str); $i < $l; ++$i) { $c = ord($str[$i]); if (97 <= $c && $c < 123) { $ret.= chr(($c + $n + 7) % 26 + 97); } else if(65 <= $c && $c < 91) { $ret.= chr(($c + $n + 13) % 26 + 65); } else { $ret.= $str[$i]; } } return $ret; } $array = (array) $test; reset($array); $first_key = key($array); //print_r($array[$first_key]); //used this to figure out the count: // http://rumkin.com/tools/cipher/caesar.php $secret = caesar($array[$first_key],13); //print_r('the secret is:'.$secret); $array = array(); //$test->__set($secret , $secret[$secret]['yum']); //$test->__set('secret' , $secret[$secret[$secret]]); function callback($test){ $func = function(){ $test->secret = "edef blah"; }; return $func->bindTo($test, 'Test'); } callback($test); //$arr = array(callback($test)); //$test->__set('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)
8.3.60.0100.00617.00
8.3.50.0110.00821.95
8.3.40.0100.00718.94
8.3.30.0070.00719.25
8.3.20.0070.00020.20
8.3.10.0070.00023.35
8.3.00.0150.00019.38
8.2.180.0100.01016.88
8.2.170.0070.00722.96
8.2.160.0040.01120.47
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0090.00926.16
8.2.120.0070.00022.22
8.2.110.0040.00421.12
8.2.100.0090.00317.76
8.2.90.0040.00419.17
8.2.80.0050.00317.97
8.2.70.0000.00817.63
8.2.60.0000.00818.05
8.2.50.0030.00618.10
8.2.40.0000.00818.22
8.2.30.0030.00518.08
8.2.20.0000.00817.78
8.2.10.0040.00418.07
8.2.00.0030.00717.72
8.1.280.0110.00425.92
8.1.270.0090.00023.71
8.1.260.0080.00026.35
8.1.250.0070.00028.09
8.1.240.0090.00022.62
8.1.230.0060.00617.89
8.1.220.0080.00017.74
8.1.210.0000.00818.77
8.1.200.0060.00317.35
8.1.190.0040.00417.35
8.1.180.0040.00418.10
8.1.170.0090.00318.63
8.1.160.0000.00722.04
8.1.150.0060.00318.73
8.1.140.0000.00717.56
8.1.130.0000.00817.86
8.1.120.0070.00017.52
8.1.110.0040.00417.41
8.1.100.0040.00417.54
8.1.90.0040.00417.47
8.1.80.0000.00717.46
8.1.70.0040.00417.45
8.1.60.0090.00017.62
8.1.50.0030.00517.61
8.1.40.0080.00017.58
8.1.30.0080.00017.62
8.1.20.0060.00317.57
8.1.10.0030.00617.68
8.1.00.0040.00417.49
8.0.300.0000.00718.77
8.0.290.0000.00816.88
8.0.280.0000.00718.36
8.0.270.0030.00317.31
8.0.260.0070.00017.30
8.0.250.0000.00717.11
8.0.240.0070.00017.08
8.0.230.0000.00817.09
8.0.220.0030.00316.99
8.0.210.0030.00316.98
8.0.200.0050.00316.98
8.0.190.0080.00017.11
8.0.180.0070.00017.00
8.0.170.0050.00316.95
8.0.160.0030.00316.85
8.0.150.0000.00716.91
8.0.140.0040.00316.94
8.0.130.0000.00613.46
8.0.120.0060.00316.87
8.0.110.0040.00416.92
8.0.100.0030.00516.86
8.0.90.0070.00017.00
8.0.80.0070.01016.95
8.0.70.0000.00716.94
8.0.60.0030.00516.89
8.0.50.0040.00416.79
8.0.30.0110.00717.13
8.0.20.0080.01117.40
8.0.10.0000.00816.93
8.0.00.0110.00816.82
7.4.330.0040.00315.00
7.4.320.0050.00316.54
7.4.300.0000.00716.51
7.4.290.0070.00016.49
7.4.280.0050.00216.46
7.4.270.0070.00016.56
7.4.260.0040.00416.56
7.4.250.0060.00316.52
7.4.240.0030.00416.56
7.4.230.0070.00016.65
7.4.220.0150.01016.66
7.4.210.0090.00916.65
7.4.200.0070.00016.60
7.4.190.0030.00316.77
7.4.160.0090.00616.39
7.4.150.0090.00917.40
7.4.140.0030.01417.86
7.4.130.0080.00816.59
7.4.120.0090.00916.52
7.4.110.0090.00916.42
7.4.100.0110.00816.55
7.4.90.0060.01216.66
7.4.80.0030.01919.39
7.4.70.0130.00416.45
7.4.60.0000.01716.36
7.4.50.0040.00416.28
7.4.40.0120.00722.77
7.4.30.0100.00716.64
7.4.00.0070.00715.20
7.3.330.0000.00613.24
7.3.320.0030.00313.48
7.3.310.0030.00316.42
7.3.300.0070.00016.48
7.3.290.0110.00416.44
7.3.280.0050.01116.45
7.3.270.0130.00317.40
7.3.260.0030.01316.56
7.3.250.0150.01016.43
7.3.240.0100.00716.58
7.3.230.0000.01616.54
7.3.210.0110.01916.52
7.3.200.0030.01316.38
7.3.190.0130.01116.48
7.3.180.0060.00916.62
7.3.170.0120.00416.70
7.3.160.0090.00616.61
7.3.120.0000.01714.93
7.3.10.0070.00716.68
7.3.00.0090.00316.83
7.2.330.0090.00916.84
7.2.320.0140.00316.49
7.2.310.0150.00616.48
7.2.300.0100.00716.73
7.2.290.0030.01216.89
7.2.130.0080.00816.84
7.2.120.0120.00317.06
7.2.110.0090.00316.83
7.2.100.0030.01016.71
7.2.90.0120.00317.18
7.2.80.0070.00716.96
7.2.70.0040.00717.06
7.2.60.0080.00317.14
7.2.50.0080.00416.68
7.2.40.0030.01016.93
7.2.30.0060.00916.78
7.2.20.0030.01017.07
7.2.10.0040.00817.05
7.2.00.0030.01218.33
7.1.250.0030.00915.88
7.1.100.0040.00817.98
7.1.70.0000.00717.29
7.1.60.0070.01819.46
7.1.50.0070.01317.05
7.1.00.0030.07722.54
7.0.200.0030.01016.85
7.0.140.0030.07022.04
7.0.60.0100.07719.97
7.0.50.0170.07017.71
7.0.40.0130.06020.40
7.0.30.0330.07720.08
7.0.20.0330.03720.24
7.0.10.0300.05320.06
7.0.00.0070.08720.06
5.6.280.0030.07320.94
5.6.210.0070.06020.47
5.6.200.0130.07718.25
5.6.190.0130.08320.52
5.6.180.0300.07020.61
5.6.170.0300.05020.47
5.6.160.0100.08020.52
5.6.150.0030.06018.28
5.6.140.0030.05718.28
5.6.130.0070.06718.18
5.6.120.0000.04721.06
5.6.110.0200.08021.16
5.6.100.0130.08020.90
5.6.90.0100.08320.96
5.6.80.0070.04020.53
5.6.70.2530.03320.39
5.5.350.0100.08020.48
5.5.340.0070.04717.94
5.5.330.0130.08320.25
5.5.320.0300.07320.36
5.5.310.0270.07020.23
5.5.300.0030.04717.97
5.5.290.0170.07718.00
5.5.280.0070.07020.86
5.5.270.0100.08020.74
5.5.260.0070.04020.91
5.5.250.0070.08720.63
5.5.240.0030.08720.27
5.4.450.0700.06719.31
5.4.440.0830.06319.37
5.4.430.0200.07319.46
5.4.420.0770.05019.59
5.4.410.0800.05719.42
5.4.400.0230.05319.30
5.4.390.0130.06019.15
5.4.380.0270.06018.58
5.4.370.0300.04718.59
5.4.360.0230.05018.58
5.4.350.0530.06718.83
5.4.340.0270.05718.77
5.4.320.0060.04412.52
5.4.310.0080.03912.51
5.4.300.0060.04012.52
5.4.290.0100.05512.50
5.4.280.0130.04812.39
5.4.270.0070.05312.40
5.4.260.0040.04112.39
5.4.250.0090.03612.40
5.4.240.0090.03512.40
5.4.230.0060.04312.39
5.4.220.0060.03812.39
5.4.210.0040.03912.39
5.4.200.0050.03912.39
5.4.190.0080.03512.39
5.4.180.0080.03512.38
5.4.170.0070.03612.39
5.4.160.0050.03712.39
5.4.150.0050.03812.39
5.4.140.0070.03612.07
5.4.130.0070.03812.06
5.4.120.0050.03712.02
5.4.110.0030.04112.01
5.4.100.0060.03712.02
5.4.90.0070.03612.01
5.4.80.0080.03612.02
5.4.70.0050.03612.00
5.4.60.0050.03612.01
5.4.50.0100.03312.01
5.4.40.0050.03712.00
5.4.30.0040.03811.99
5.4.20.0060.03612.00
5.4.10.0060.03611.99
5.4.00.0050.04011.48
5.3.290.0050.04112.80
5.3.280.0050.04012.71
5.3.270.0040.04612.72
5.3.260.0100.05512.71
5.3.250.0080.05412.72
5.3.240.0190.04412.72
5.3.230.0100.07912.71
5.3.220.0090.06112.68
5.3.210.0090.06512.68
5.3.200.0080.06312.68
5.3.190.0120.06112.68
5.3.180.0120.05612.68
5.3.170.0100.05412.67
5.3.160.0020.04312.67
5.3.150.0070.03912.68
5.3.140.0070.04012.66
5.3.130.0090.03912.66
5.3.120.0020.04512.65
5.3.110.0060.04112.66
5.3.100.0080.03712.14
5.3.90.0060.03712.12
5.3.80.0070.03712.12
5.3.70.0050.04012.12
5.3.60.0060.03812.09
5.3.50.0070.05112.04
5.3.40.0080.04712.04
5.3.30.0060.04012.01
5.3.20.0050.03711.79
5.3.10.0070.03411.75
5.3.00.0050.03811.74
5.2.170.0070.0459.25
5.2.160.0080.0539.24
5.2.150.0070.0579.25
5.2.140.0100.0459.24
5.2.130.0110.0389.20
5.2.120.0070.0309.20
5.2.110.0080.0339.20
5.2.100.0060.0309.20
5.2.90.0060.0309.20
5.2.80.0090.0279.19
5.2.70.0060.0309.20
5.2.60.0030.0409.14
5.2.50.0060.0309.12
5.2.40.0050.0309.09
5.2.30.0070.0299.07
5.2.20.0060.0339.05
5.2.10.0060.0288.96
5.2.00.0060.0298.82
5.1.60.0060.0238.11
5.1.50.0050.0258.11
5.1.40.0060.0238.09
5.1.30.0050.0358.44
5.1.20.0080.0428.46
5.1.10.0120.0328.19
5.1.00.0040.0408.18
5.0.50.0060.0296.68
5.0.40.0040.0276.53
5.0.30.0040.0436.34
5.0.20.0020.0286.30
5.0.10.0070.0266.29
5.0.00.0050.0316.28
4.4.90.0010.0254.78
4.4.80.0040.0224.75
4.4.70.0060.0204.75
4.4.60.0060.0194.75
4.4.50.0060.0174.77
4.4.40.0030.0354.71
4.4.30.0020.0214.76
4.4.20.0020.0174.84
4.4.10.0040.0174.85
4.4.00.0050.0334.76
4.3.110.0020.0244.67
4.3.100.0020.0284.66
4.3.90.0030.0224.63
4.3.80.0050.0354.58
4.3.70.0030.0254.63
4.3.60.0070.0214.63
4.3.50.0050.0214.63
4.3.40.0040.0324.54
4.3.30.0030.0223.30
4.3.20.0040.0263.28
4.3.10.0020.0223.23
4.3.00.0230.01710.54

preferences:
54.79 ms | 401 KiB | 5 Q