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; } public function foo(Test $obj){ echo $obj->secret;die; } } $test = new Test; // start editing here class TestM extends Test { private $secret = "Foo"; public function foo(Test $obj){ echo $obj->secret;die; $obj->secret = "HELLO WORLD"; } } $testM = new TestM; $testM->foo($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)
8.3.70.0120.00318.30
8.3.60.0160.00018.58
8.3.50.0120.01021.08
8.3.40.0040.01118.82
8.3.30.0070.00720.29
8.3.20.0040.00419.97
8.3.10.0050.00322.14
8.3.00.0040.00422.27
8.2.190.0110.01116.75
8.2.180.0110.01116.75
8.2.170.0110.00422.96
8.2.160.0030.01020.58
8.2.150.0050.00324.18
8.2.140.0050.00324.66
8.2.130.0090.00926.16
8.2.120.0080.00019.54
8.2.110.0030.00619.29
8.2.100.0000.01117.84
8.2.90.0050.00319.09
8.2.80.0080.00017.97
8.2.70.0000.00917.63
8.2.60.0060.00317.93
8.2.50.0040.00818.07
8.2.40.0030.00617.97
8.2.30.0050.00217.88
8.2.20.0040.00417.70
8.2.10.0060.00317.57
8.2.00.0000.00817.66
8.1.280.0040.01125.92
8.1.270.0080.00024.66
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00621.29
8.1.230.0070.00317.42
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0040.00817.36
8.1.190.0000.00817.22
8.1.180.0000.00819.01
8.1.170.0080.00018.59
8.1.160.0040.00422.14
8.1.150.0040.00418.50
8.1.140.0040.00417.31
8.1.130.0060.00317.84
8.1.120.0040.00417.44
8.1.110.0040.00417.30
8.1.100.0040.00417.42
8.1.90.0040.00417.36
8.1.80.0000.00717.39
8.1.70.0070.00017.40
8.1.60.0040.00417.57
8.1.50.0000.00717.57
8.1.40.0000.00817.51
8.1.30.0080.00017.65
8.1.20.0050.00317.70
8.1.10.0030.00517.59
8.1.00.0090.00017.52
8.0.300.0040.00418.77
8.0.290.0000.00716.63
8.0.280.0070.00018.26
8.0.270.0030.00317.21
8.0.260.0000.00716.83
8.0.250.0000.00616.96
8.0.240.0080.00316.98
8.0.230.0080.00016.84
8.0.220.0030.00316.79
8.0.210.0030.00316.81
8.0.200.0030.00517.00
8.0.190.0000.00816.98
8.0.180.0030.00616.96
8.0.170.0000.00716.95
8.0.160.0030.00316.98
8.0.150.0000.00716.91
8.0.140.0080.00016.85
8.0.130.0000.00513.26
8.0.120.0060.00316.86
8.0.110.0000.00716.92
8.0.100.0000.00716.77
8.0.90.0000.00716.86
8.0.80.0080.00816.89
8.0.70.0050.00316.89
8.0.60.0040.00416.82
8.0.50.0000.00716.87
8.0.30.0130.00617.14
8.0.20.0130.00617.41
8.0.10.0040.00416.89
8.0.00.0060.01316.80
7.4.330.0030.00315.00
7.4.320.0030.00316.35
7.4.300.0060.00016.50
7.4.290.0030.00316.42
7.4.280.0030.00316.52
7.4.270.0000.00716.46
7.4.260.0040.00416.36
7.4.250.0040.00416.55
7.4.240.0020.00616.53
7.4.230.0000.00716.45
7.4.220.0060.01016.65
7.4.210.0070.00916.56
7.4.200.0070.00016.68
7.4.190.0000.00716.70
7.4.160.0090.00916.43
7.4.150.0070.01317.40
7.4.140.0090.01117.86
7.4.130.0050.01116.53
7.4.120.0120.00416.48
7.4.110.0080.00816.42
7.4.100.0160.00616.37
7.4.90.0100.00716.53
7.4.80.0110.01119.39
7.4.70.0060.01216.63
7.4.60.0080.00816.45
7.4.50.0000.00816.30
7.4.40.0060.00922.77
7.4.30.0090.00616.52
7.4.00.0060.01014.81
7.3.330.0050.00013.25
7.3.320.0050.00013.46
7.3.310.0030.00316.39
7.3.300.0030.00316.21
7.3.290.0110.00316.38
7.3.280.0110.00716.41
7.3.270.0040.01317.40
7.3.260.0090.01216.68
7.3.250.0140.00916.55
7.3.240.0070.01016.52
7.3.230.0100.00716.39
7.3.210.0060.01016.52
7.3.200.0030.01319.39
7.3.190.0090.00916.27
7.3.180.0120.00316.41
7.3.170.0140.00316.45
7.3.160.0100.00716.55
7.3.120.0060.01014.81
7.2.330.0110.00616.61
7.2.320.0060.01216.64
7.2.310.0110.01016.57
7.2.300.0100.00616.35
7.2.290.0030.01516.82
7.2.60.0030.00917.00
7.2.00.0060.00619.47
7.1.200.0060.00615.87
7.1.100.0030.00917.90
7.1.70.0000.01017.21
7.1.60.0140.01019.43
7.1.50.0060.00916.83
7.1.00.0100.06022.30
7.0.200.0270.00314.90
7.0.140.0130.06722.07
7.0.80.0130.08719.90
7.0.70.0100.07319.94
7.0.60.0100.07719.89
7.0.50.0130.07720.31
7.0.40.0070.08020.10
7.0.30.0170.07320.11
7.0.20.0070.06720.14
7.0.10.0130.06320.02
7.0.00.0100.03720.10
5.6.280.0030.07020.91
5.6.230.0030.08320.57
5.6.220.0030.08320.62
5.6.210.0130.06320.66
5.6.200.0070.08720.91
5.6.190.0030.04321.12
5.6.180.0100.07021.12
5.6.170.0100.08720.96
5.6.160.0070.06321.02
5.6.150.0230.03321.09
5.6.140.0200.06021.11
5.6.130.0070.08020.95
5.6.120.0030.08021.14
5.6.110.0070.05321.06
5.6.100.0100.08021.00
5.6.90.0200.05721.09
5.6.80.0170.07720.50
5.6.70.0130.07320.33
5.6.60.0030.04720.42
5.6.50.0100.08020.38
5.6.40.0100.04320.45
5.6.30.0070.04320.45
5.6.20.0100.06020.42
5.6.10.0100.07720.50
5.6.00.0100.06720.35
5.5.370.0070.08020.36
5.5.360.0030.05720.45
5.5.350.0100.05020.49
5.5.340.0070.05020.75
5.5.330.0030.04720.93
5.5.320.0230.06720.79
5.5.310.0170.07320.90
5.5.300.0200.06720.74
5.5.290.0100.08020.87
5.5.280.0030.04720.85
5.5.270.0170.07720.90
5.5.260.0030.09020.90
5.5.250.0070.05020.64
5.5.240.0130.07320.31
5.5.230.0070.04320.29
5.5.220.0070.07720.27
5.5.210.0100.06720.19
5.5.200.0030.07320.25
5.5.190.0130.07720.09
5.5.180.0170.06720.28
5.5.160.0000.08320.13
5.5.150.0030.05720.09
5.5.140.0070.04720.20
5.5.130.0070.04320.07
5.5.120.0070.04720.22
5.5.110.0100.08320.22
5.5.100.0070.07320.11
5.5.90.0030.08020.12
5.5.80.0100.08020.16
5.5.70.0230.06020.11
5.5.60.0100.07320.07
5.5.50.0030.07720.03
5.5.40.0030.05320.14
5.5.30.0130.06020.10
5.5.20.0000.07320.10
5.5.10.0100.07320.14
5.5.00.0070.07320.11
5.4.450.0170.07719.48
5.4.440.0000.08719.37
5.4.430.0030.05019.46
5.4.420.0070.07319.44
5.4.410.0070.07719.37
5.4.400.0030.05319.21
5.4.390.0030.07019.05
5.4.380.0000.08019.07
5.4.370.0000.06019.18
5.4.360.0070.04719.05
5.4.350.0000.08019.12
5.4.340.0130.05719.21
5.4.320.0170.05719.13
5.4.310.0100.07019.13
5.4.300.0030.08019.13
5.4.290.0070.05719.03
5.4.280.0030.04319.02
5.4.270.0100.07018.94
5.4.260.0070.04019.16
5.4.250.0070.07718.98
5.4.240.0030.07318.84
5.4.230.0070.03718.90
5.4.220.0070.06319.15
5.4.210.0030.07319.11
5.4.200.0070.05319.16
5.4.190.0070.07019.04
5.4.180.0070.06719.04
5.4.170.0030.07719.12
5.4.160.0130.06018.96
5.4.150.0130.05019.11
5.4.140.0030.07316.38
5.4.130.0130.05716.29
5.4.120.0030.06716.29
5.4.110.0030.04016.48
5.4.100.0070.07716.55
5.4.90.0070.06716.54
5.4.80.0130.06716.55
5.4.70.0170.05316.51
5.4.60.0070.07316.45
5.4.50.0070.07316.36
5.4.40.0100.06016.53
5.4.30.0030.05316.29
5.4.20.0130.04316.44
5.4.10.0130.04016.37
5.4.00.0030.07015.69
5.3.290.0000.08314.64
5.3.280.0130.07714.56
5.3.270.0030.05314.68
5.3.260.0170.07314.58
5.3.250.0070.07314.66
5.3.240.0070.04014.63
5.3.230.0130.06314.62
5.3.220.0030.05014.55
5.3.210.0130.06014.56
5.3.200.0000.04014.70
5.3.190.0030.05714.50
5.3.180.0070.07014.55
5.3.170.0030.07314.68
5.3.160.0030.05714.58
5.3.150.0030.07714.60
5.3.140.0070.07714.55
5.3.130.0030.05014.66
5.3.120.0100.07714.58
5.3.110.0100.07314.55
5.3.100.0130.06314.00
5.3.90.0070.05314.16
5.3.80.0070.06313.98
5.3.70.0000.04013.98
5.3.60.0070.03313.98
5.3.50.0100.06714.03
5.3.40.0070.07013.98
5.3.30.0070.06713.98
5.3.20.0100.05313.98
5.3.10.0100.06313.98
5.3.00.0130.05713.98
5.2.170.0070.04013.98
5.2.160.0000.04313.98
5.2.150.0070.04313.98
5.2.140.0070.06313.98
5.2.130.0130.05713.98
5.2.120.0070.05313.98
5.2.110.0100.05713.98
5.2.100.0030.06313.98
5.2.90.0030.05013.98
5.2.80.0070.05713.98
5.2.70.0070.06313.98
5.2.60.0070.04713.98
5.2.50.0100.05313.98
5.2.40.0000.04013.98
5.2.30.0000.06013.98
5.2.20.0030.06313.98
5.2.10.0100.03313.98
5.2.00.0000.06313.98
5.1.60.0000.04713.98
5.1.50.0030.04013.98
5.1.40.0030.05013.98
5.1.30.0030.05713.98
5.1.20.0070.04313.98
5.1.10.0070.03713.98
5.1.00.0030.04013.98
5.0.50.0100.04013.98
5.0.40.0100.03013.98
5.0.30.0030.05713.98
5.0.20.0030.03013.98
5.0.10.0000.03013.98
5.0.00.0030.03013.98
4.4.90.0030.03313.98
4.4.80.0030.03313.98
4.4.70.0000.03713.98
4.4.60.0000.02013.98
4.4.50.0070.03013.98
4.4.40.0030.04313.98
4.4.30.0000.03313.98
4.4.20.0000.03713.98
4.4.10.0000.04713.98
4.4.00.0000.05313.98
4.3.110.0070.03013.98
4.3.100.0000.03713.98
4.3.90.0000.02013.98
4.3.80.0000.04713.98
4.3.70.0000.02013.98
4.3.60.0100.01013.98
4.3.50.0000.01713.98
4.3.40.0030.02013.98
4.3.30.0030.01313.98
4.3.20.0000.01713.98
4.3.10.0000.01713.98
4.3.00.0000.02313.98

preferences:
63.2 ms | 401 KiB | 5 Q