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 class A implements ArrayAccess { private $callCount = 0; public function __invoke(){ return function(){ echo "A".$this->secret."B";die; }; } public function offsetSet($offset, $value) {} public function offsetExists($offset) { return true; } public function offsetUnset($offset) {} public function offsetGet($offset) { $this->callCount++; if ($this->callCount == 1){ $r = $this; } else { $r = "callback"; } return $r; } } $test->foo = new A; // 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)
8.3.40.0070.00718.96
8.3.30.0110.00320.21
8.3.20.0040.00420.34
8.3.10.0060.00322.14
8.3.00.0040.00422.45
8.2.170.0140.00422.96
8.2.160.0100.00320.38
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0050.00326.16
8.2.120.0080.00019.52
8.2.110.0050.00322.24
8.2.100.0090.00319.31
8.2.90.0050.00319.30
8.2.80.0060.00319.31
8.2.70.0000.00817.61
8.2.60.0030.00618.16
8.2.50.0040.00418.07
8.2.40.0040.00418.17
8.2.30.0000.00718.00
8.2.20.0030.00519.63
8.2.10.0080.00017.83
8.2.00.0070.00017.83
8.1.270.0040.00424.66
8.1.260.0000.00726.35
8.1.250.0000.00728.09
8.1.240.0000.00923.80
8.1.230.0080.00319.01
8.1.220.0040.00417.77
8.1.210.0040.00418.77
8.1.200.0060.00317.23
8.1.190.0040.00417.43
8.1.180.0040.00420.04
8.1.170.0000.00918.64
8.1.160.0040.00422.16
8.1.150.0000.00818.77
8.1.140.0040.00417.48
8.1.130.0070.00317.77
8.1.120.0000.00717.39
8.1.110.0000.00817.48
8.1.100.0030.00417.38
8.1.90.0070.00017.55
8.1.80.0000.00717.55
8.1.70.0000.00717.45
8.1.60.0040.00417.61
8.1.50.0040.00417.46
8.1.40.0060.00317.56
8.1.30.0030.00517.55
8.1.20.0030.00617.66
8.1.10.0090.00017.61
8.1.00.0040.00417.53
8.0.300.0040.00418.77
8.0.290.0000.00817.17
8.0.280.0000.00818.53
8.0.270.0000.00717.28
8.0.260.0070.00016.90
8.0.250.0000.00717.04
8.0.240.0060.00316.97
8.0.230.0000.00817.04
8.0.220.0040.00416.91
8.0.210.0000.00717.02
8.0.200.0000.00717.05
8.0.190.0040.00417.01
8.0.180.0080.00016.91
8.0.170.0000.00816.95
8.0.160.0040.00417.00
8.0.150.0030.00316.95
8.0.140.0000.00716.91
8.0.130.0050.00013.37
8.0.120.0000.00816.83
8.0.110.0000.00816.93
8.0.100.0040.00417.00
8.0.90.0070.00016.79
8.0.80.0110.01116.95
8.0.70.0070.00017.02
8.0.60.0000.00716.89
8.0.50.0040.00417.03
8.0.30.0090.01217.25
8.0.20.0060.01217.40
8.0.10.0040.00417.06
8.0.00.0080.01616.94
7.4.330.0060.00015.00
7.4.320.0030.00316.45
7.4.300.0070.00016.52
7.4.290.0030.00316.66
7.4.280.0030.00316.52
7.4.270.0030.00316.64
7.4.260.0070.00016.55
7.4.250.0040.00416.47
7.4.240.0020.00516.45
7.4.230.0050.00216.52
7.4.220.0060.01016.55
7.4.210.0100.00616.59
7.4.200.0000.00716.61
7.4.190.0050.00316.59
7.4.160.0050.01116.23
7.4.150.0090.00917.40
7.4.140.0070.01517.86
7.4.130.0110.00716.51
7.4.120.0110.00716.64
7.4.110.0130.00816.61
7.4.100.0080.01616.50
7.4.90.0140.00516.40
7.4.80.0120.01219.39
7.4.70.0060.01016.50
7.4.60.0160.00016.41
7.4.50.0030.00616.79
7.4.40.0110.00722.77
7.4.30.0110.01016.44
7.4.00.0040.00815.06
7.3.330.0020.00213.32
7.3.320.0030.00313.34
7.3.310.0040.00416.36
7.3.300.0050.00316.45
7.3.290.0030.00316.39
7.3.280.0030.01316.44
7.3.270.0130.01017.40
7.3.260.0070.01016.47
7.3.250.0090.01216.47
7.3.240.0100.00616.38
7.3.230.0070.01016.61
7.3.210.0100.01016.41
7.3.200.0090.00619.39
7.3.190.0150.00316.57
7.3.180.0030.01316.45
7.3.170.0100.00716.36
7.3.160.0170.00016.47
7.3.120.0080.00414.79
7.3.10.0020.01216.65
7.3.00.0060.00616.55
7.2.330.0180.00016.65
7.2.320.0190.00016.57
7.2.310.0060.01316.88
7.2.300.0100.00716.52
7.2.290.0100.00716.80
7.2.130.0000.01216.91
7.2.120.0040.01116.82
7.2.110.0060.00817.04
7.2.100.0080.00616.89
7.2.90.0050.00917.00
7.2.80.0060.00616.86
7.2.70.0040.00917.05
7.2.60.0060.00617.04
7.2.50.0050.01016.88
7.2.40.0040.00716.98
7.2.30.0070.00717.07
7.2.20.0110.00516.75
7.2.10.0030.01116.87
7.2.00.0070.00917.74
7.1.250.0050.00515.69
7.1.200.0000.01415.71
7.1.100.0050.00518.41
7.1.70.0030.00317.30
7.1.60.0110.01419.21
7.1.50.0060.01216.63
7.1.00.0000.03722.32
7.0.200.0040.00716.73
7.0.140.0070.07022.07
7.0.100.0130.04719.96
7.0.90.0270.05320.15
7.0.80.0130.08020.00
7.0.70.0000.08019.93
7.0.60.0070.06319.97
7.0.50.0030.08720.31
7.0.40.0100.06320.07
7.0.30.0100.08020.04
7.0.20.0100.05720.08
7.0.10.0100.08720.00
7.0.00.0030.06720.17
5.6.280.0070.07021.12
5.6.250.0130.08020.64
5.6.240.0070.08320.73
5.6.230.0070.07020.59
5.6.220.0030.05720.68
5.6.210.0100.08020.77
5.6.200.0100.07721.12
5.6.190.0070.07721.15
5.6.180.0070.08721.13
5.6.170.0070.09021.04
5.6.160.0070.08721.12
5.6.150.0030.09021.02
5.6.140.0070.04721.09
5.6.130.0130.06721.01
5.6.120.0100.08021.02
5.6.110.0100.08021.03
5.6.100.0130.08321.11
5.6.90.0100.04321.10
5.6.80.0130.06720.51
5.6.70.0100.07020.50
5.6.60.0100.07020.47
5.6.50.0070.05320.42
5.6.40.0070.06320.50
5.6.30.0070.04320.48
5.6.20.0100.07320.32
5.6.10.0000.04320.36
5.6.00.0100.08020.38
5.5.380.0130.07320.44
5.5.370.0000.07720.40
5.5.360.0130.04720.49
5.5.350.0130.04320.41
5.5.340.0070.05320.94
5.5.330.0030.08720.78
5.5.320.0130.06720.91
5.5.310.0030.06020.93
5.5.300.0100.07720.77
5.5.290.0130.07720.75
5.5.280.0030.06720.94
5.5.270.0100.08020.81
5.5.260.0200.08020.91
5.5.250.0130.07720.56
5.5.240.0070.04720.33
5.5.230.0030.04720.31
5.5.220.0130.06020.22
5.5.210.0100.07720.15
5.5.200.0070.08020.23
5.5.190.0070.04320.14
5.5.180.0070.06320.20
5.5.160.0030.08020.16
5.5.150.0100.04020.27
5.5.140.0170.03320.23
5.5.130.0100.07720.26
5.5.120.0070.08020.22
5.5.110.0070.06720.27
5.5.100.0070.07020.10
5.5.90.0070.06719.96
5.5.80.0100.07720.13
5.5.70.0030.04320.18
5.5.60.0170.03719.95
5.5.50.0100.03720.09
5.5.40.0130.07320.07
5.5.30.0100.07020.11
5.5.20.0000.07720.05
5.5.10.0100.07720.10
5.5.00.0030.05020.05
5.4.450.0030.09319.42
5.4.440.0030.08319.38
5.4.430.0000.06019.34
5.4.420.0130.06719.27
5.4.410.0070.06719.22
5.4.400.0000.07019.03
5.4.390.0130.06018.90
5.4.380.0100.05719.03
5.4.370.0030.06318.94
5.4.360.0130.05018.87
5.4.350.0100.07019.09
5.4.340.0100.04019.18
5.4.320.0030.07718.90
5.4.310.0070.04019.03
5.4.300.0030.07318.88
5.4.290.0100.07319.23
5.4.280.0070.07719.12
5.4.270.0030.05719.10
5.4.260.0130.07018.88
5.4.250.0130.06719.22
5.4.240.0100.03318.84
5.4.230.0030.05719.15
5.4.220.0070.06718.87
5.4.210.0200.06719.13
5.4.200.0030.05019.12
5.4.190.0100.07318.86
5.4.180.0030.07319.20
5.4.170.0030.04319.02
5.4.160.0100.08019.19
5.4.150.0100.06319.01
5.4.140.0130.07016.50
5.4.130.0000.07716.29
5.4.120.0070.07016.30
5.4.110.0030.05016.32
5.4.100.0030.05016.40
5.4.90.0030.06716.57
5.4.80.0130.05716.43
5.4.70.0070.06316.36
5.4.60.0070.05316.43
5.4.50.0030.07716.33
5.4.40.0130.07016.36
5.4.30.0100.05016.44
5.4.20.0100.08316.43
5.4.10.0070.07316.45
5.4.00.0130.06315.70
5.3.290.0000.07714.63
5.3.280.0070.07314.66
5.3.270.0100.07014.66
5.3.260.0030.05314.64
5.3.250.0000.05314.68
5.3.240.0030.04014.56
5.3.230.0100.06314.59
5.3.220.0070.08014.64
5.3.210.0100.07314.55
5.3.200.0030.08014.52
5.3.190.0030.04714.57
5.3.180.0100.07314.55
5.3.170.0130.06714.72
5.3.160.0070.08014.59
5.3.150.0100.08714.59
5.3.140.0030.06314.71
5.3.130.0100.05314.63
5.3.120.0070.07714.71
5.3.110.0070.05014.66
5.3.100.0070.05014.07
5.3.90.0030.07313.96
5.3.80.0030.04714.09
5.3.70.0100.07013.96
5.3.60.0100.07314.07
5.3.50.0170.06714.03
5.3.40.0100.05713.97
5.3.30.0130.07013.95
5.3.20.0030.07313.72
5.3.10.0130.06013.65
5.3.00.0000.07313.75
5.2.170.0070.06012.12
5.2.160.0100.05712.12
5.2.150.0070.06312.12
5.2.140.0000.06012.12
5.2.130.0030.05312.12
5.2.120.0030.06012.12
5.2.110.0000.05012.12
5.2.100.0030.04712.12
5.2.90.0070.04312.12
5.2.80.0030.03712.12
5.2.70.0070.03712.12
5.2.60.0070.06312.12
5.2.50.0030.04012.12
5.2.40.0000.03712.12
5.2.30.0100.05312.12
5.2.20.0030.05012.12
5.2.10.0100.04312.12
5.2.00.0100.05712.12
5.1.60.0070.04312.12
5.1.50.0070.03012.12
5.1.40.0070.05312.12
5.1.30.0000.04712.12
5.1.20.0030.05312.12
5.1.10.0070.05312.12
5.1.00.0100.05012.12
5.0.50.0000.03012.12
5.0.40.0030.02712.12
5.0.30.0000.06712.12
5.0.20.0000.03012.12
5.0.10.0100.02712.12
5.0.00.0070.06312.12
4.4.90.0000.02312.12
4.4.80.0030.03012.12
4.4.70.0070.03312.12
4.4.60.0030.03712.12
4.4.50.0030.03712.12
4.4.40.0070.05012.12
4.4.30.0070.03312.12
4.4.20.0170.02312.12
4.4.10.0000.01712.12
4.4.00.0000.05312.12
4.3.110.0000.01712.12
4.3.100.0000.02012.12
4.3.90.0070.01312.12
4.3.80.0000.05312.12
4.3.70.0030.02012.12
4.3.60.0000.02312.12
4.3.50.0000.02012.12
4.3.40.0030.04312.12
4.3.30.0030.03012.12
4.3.20.0000.03312.12
4.3.10.0000.03712.12
4.3.00.0030.03312.12

preferences:
41.17 ms | 400 KiB | 5 Q