3v4l.org

run code in 300+ PHP versions simultaneously
<?php declare(strict_types=1); class Foo { private array $data = []; public function __set(string $name, $value): void { $this->data[$name] = $value; } public function __isset(string $name): bool { return isset($this->data[$name]); } public function __unset(string $name): void { unset($this->data[$name]); } } $foo = new Foo(); $one = 1; $two = 2; $foo->$one = 'one'; $foo->$two = 'two'; var_dump( isset($foo->$one), // true isset($foo->$two) // true ); unset($foo->$one); var_dump( isset($foo->$one) // false );

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)
8.3.60.0090.00618.50
8.3.50.0000.01418.52
8.3.40.0150.00318.87
8.3.30.0160.00318.68
8.3.20.0040.00421.69
8.3.10.0090.00022.09
8.3.00.0080.00023.61
8.2.180.0030.01018.16
8.2.170.0090.00622.96
8.2.160.0070.00722.14
8.2.150.0040.00424.18
8.2.140.0050.00224.66
8.2.130.0040.00426.16
8.2.120.0080.00019.48
8.2.110.0030.00620.54
8.2.100.0040.00818.03
8.2.90.0050.00317.75
8.2.80.0060.00317.97
8.2.70.0060.00317.50
8.2.60.0030.00518.05
8.2.50.0060.00318.07
8.2.40.0000.00818.17
8.2.30.0030.00319.45
8.2.20.0070.00018.20
8.2.10.0000.00719.41
8.2.00.0050.00219.32
8.1.280.0100.00725.92
8.1.270.0080.00822.27
8.1.260.0050.00326.35
8.1.250.0070.00028.09
8.1.240.0060.00322.42
8.1.230.0080.00319.04
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0090.00017.48
8.1.190.0000.00817.35
8.1.180.0040.00418.10
8.1.170.0040.00418.57
8.1.160.0040.00418.91
8.1.150.0000.00718.82
8.1.140.0040.00418.95
8.1.130.0080.00017.45
8.1.120.0040.00417.49
8.1.110.0000.00717.33
8.1.100.0000.00717.38
8.1.90.0000.00717.48
8.1.80.0030.00617.36
8.1.70.0040.00417.45
8.1.60.0000.00817.48
8.1.50.0040.00417.56
8.1.40.0040.00417.44
8.1.30.0060.00617.68
8.1.20.0000.00817.68
8.1.10.0000.00917.57
8.1.00.0030.00617.49
8.0.300.0040.00419.64
8.0.290.0070.00316.63
8.0.280.0040.00418.34
8.0.270.0070.00018.07
8.0.260.0070.00016.77
8.0.250.0030.00316.82
8.0.240.0050.00316.95
8.0.230.0000.00716.84
8.0.220.0040.00416.91
8.0.210.0070.00016.86
8.0.200.0040.00416.90
8.0.190.0040.00417.03
8.0.180.0020.00516.91
8.0.170.0030.00716.97
8.0.160.0030.00316.91
8.0.150.0040.00416.86
8.0.140.0040.00416.86
8.0.130.0000.00813.43
8.0.120.0050.00316.90
8.0.110.0040.00416.93
8.0.100.0040.00416.69
8.0.90.0030.00616.83
8.0.80.0100.00516.86
8.0.70.0040.00416.79
8.0.60.0000.00716.98
8.0.50.0070.00016.93
8.0.30.0090.00917.10
8.0.20.0080.01417.01
8.0.10.0000.00817.05
8.0.00.0080.00916.82
7.4.330.0000.00515.55
7.4.320.0030.00316.63
7.4.300.0070.00016.62
7.4.290.0040.00416.50
7.4.280.0060.00616.62
7.4.270.0020.00516.55
7.4.260.0000.00513.24
7.4.250.0030.00316.53
7.4.240.0060.00216.45
7.4.230.0040.00416.52
7.4.220.0040.00316.70
7.4.210.0080.00616.57
7.4.200.0070.00016.36
7.4.130.0110.00916.65
7.4.120.0160.00516.37
7.4.110.0120.00616.56
7.4.100.0090.00916.54
7.4.90.0060.01216.64
7.4.80.0090.00919.39
7.4.70.0100.00716.56
7.4.60.0030.01316.46
7.4.50.0060.00916.50
7.4.40.0030.01316.44
7.4.30.0080.00816.47
7.4.20.0090.00616.38
7.4.10.0070.01016.45
7.4.00.0070.01316.56
7.3.330.0000.00816.23
7.3.320.0000.00613.23
7.3.310.0070.00016.01
7.3.300.0000.00716.02
7.3.290.0080.00816.15
7.3.280.0110.00316.27
7.3.260.0170.00016.26
7.3.240.0110.00716.21
7.3.230.0170.00716.19
7.3.210.0090.00916.25
7.3.200.0160.00716.21
7.3.190.0110.00616.25
7.3.180.0080.01216.19
7.3.170.0100.01016.56
7.3.160.0060.00916.14
7.3.150.0030.01316.39
7.3.140.0110.00616.26
7.3.130.0070.01016.18
7.3.120.0100.01316.07
7.3.110.0030.01316.15
7.3.100.0060.01016.31
7.3.90.0100.00716.30
7.3.80.0130.00316.31
7.3.70.0110.00616.10
7.3.60.0030.01416.13
7.3.50.0070.01016.09
7.3.40.0140.00316.16
7.3.30.0100.01016.18
7.3.20.0080.00916.10
7.3.10.0090.00916.07
7.3.00.0060.01316.16
7.2.330.0090.00916.48
7.2.320.0000.01716.23
7.2.310.0110.00716.52
7.2.300.0070.01416.22
7.2.290.0100.00716.05
7.2.280.0070.01416.02
7.2.270.0100.00616.15
7.2.260.0070.01016.13
7.2.250.0120.00416.47
7.2.240.0080.00816.43
7.2.230.0060.00916.34
7.2.220.0100.00916.43
7.2.210.0090.00916.28
7.2.200.0030.01616.30
7.2.190.0070.01016.41
7.2.180.0120.00616.24
7.2.170.0100.01116.15
7.2.160.0140.00316.29
7.2.150.0120.00616.35
7.2.140.0030.01516.34
7.2.130.0060.01216.42
7.2.120.0100.01016.29
7.2.110.0100.00716.42
7.2.100.0170.00716.46
7.2.90.0080.01216.38
7.2.80.0140.01116.41
7.2.70.0130.00616.34
7.2.60.0120.01316.49
7.2.50.0120.00916.36
7.2.40.0060.01316.44
7.2.30.0070.01116.36
7.2.20.0160.00316.30
7.2.10.0060.01316.31
7.2.00.0020.00916.36

preferences:
66.69 ms | 401 KiB | 5 Q