3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Promise { public $value; public function __construct($value) { $this->value = $value; } public function when(callable $callable) { $callable($this->value); } } $promise = new Promise(new StdClass); var_dump($promise); $promise->when(function(&$when) { $when = 42; }); var_dump($promise);

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)
8.3.60.0090.00616.63
8.3.50.0110.01118.31
8.3.40.0110.00418.69
8.3.30.0110.00418.67
8.3.20.0090.00019.35
8.3.10.0040.00421.94
8.3.00.0080.00020.71
8.2.180.0110.00418.41
8.2.170.0110.00422.96
8.2.160.0070.00720.53
8.2.150.0030.00624.18
8.2.140.0040.00424.66
8.2.130.0000.00819.70
8.2.120.0000.00726.35
8.2.110.0100.00022.29
8.2.100.0070.00417.71
8.2.90.0000.00817.63
8.2.80.0030.00518.05
8.2.70.0040.00417.93
8.2.60.0050.00318.05
8.2.50.0080.00018.10
8.2.40.0080.00020.47
8.2.30.0030.00719.26
8.2.20.0070.00017.58
8.2.10.0070.00018.17
8.2.00.0050.00218.24
8.1.280.0030.01325.92
8.1.270.0000.00823.79
8.1.260.0000.00828.09
8.1.250.0070.00028.09
8.1.240.0060.00319.16
8.1.230.0080.00420.39
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0030.00617.35
8.1.190.0060.00317.35
8.1.180.0000.00818.10
8.1.170.0000.00818.64
8.1.160.0040.00419.08
8.1.150.0050.00318.78
8.1.140.0070.00019.64
8.1.130.0030.00317.77
8.1.120.0050.00217.40
8.1.110.0000.00717.36
8.1.100.0000.00717.46
8.1.90.0000.00717.53
8.1.80.0000.00817.38
8.1.70.0030.00317.46
8.1.60.0000.00817.59
8.1.50.0040.00417.59
8.1.40.0040.00417.57
8.1.30.0030.00617.65
8.1.20.0090.00017.63
8.1.10.0040.00417.56
8.1.00.0040.00417.49
8.0.300.0040.00419.73
8.0.290.0040.00416.63
8.0.280.0070.00018.39
8.0.270.0000.00717.11
8.0.260.0030.00317.16
8.0.250.0040.00416.86
8.0.240.0000.00716.83
8.0.230.0000.00816.92
8.0.220.0000.00716.92
8.0.210.0030.00316.86
8.0.200.0030.00317.04
8.0.190.0000.00717.05
8.0.180.0040.00417.03
8.0.170.0000.00716.88
8.0.160.0000.00717.07
8.0.150.0040.00416.94
8.0.140.0090.00316.96
8.0.130.0000.00613.36
8.0.120.0040.00416.86
8.0.110.0040.00416.79
8.0.100.0040.00416.89
8.0.90.0080.00017.02
8.0.80.0030.01316.91
8.0.70.0000.01016.84
8.0.60.0060.00316.96
8.0.50.0040.00416.93
8.0.30.0100.00817.10
8.0.20.0130.00617.40
8.0.10.0040.00417.04
8.0.00.0060.01216.79
7.4.330.0050.00015.08
7.4.320.0000.00716.50
7.4.300.0030.00316.50
7.4.290.0000.00816.45
7.4.280.0040.00416.48
7.4.270.0000.00716.54
7.4.260.0030.00716.54
7.4.250.0030.00316.52
7.4.240.0030.00316.51
7.4.230.0000.00716.41
7.4.220.0120.00616.63
7.4.210.0150.00316.63
7.4.200.0000.00716.36
7.4.160.0050.00916.33
7.4.150.0090.00917.40
7.4.140.0080.01017.86
7.4.130.0090.00816.55
7.4.120.0160.00216.60
7.4.110.0040.01316.46
7.4.100.0140.00316.57
7.4.90.0060.01116.36
7.4.80.0030.01319.39
7.4.70.0090.00816.45
7.4.60.0060.00916.42
7.4.50.0070.01116.38
7.4.40.0030.01516.45
7.4.30.0100.00616.55
7.4.00.0000.01715.02
7.3.330.0040.00313.29
7.3.320.0030.00313.17
7.3.310.0030.00316.39
7.3.300.0030.00316.27
7.3.290.0090.00516.27
7.3.280.0140.00616.34
7.3.270.0170.01017.40
7.3.260.0140.00416.52
7.3.250.0100.01016.38
7.3.240.0060.01716.39
7.3.230.0140.01016.39
7.3.210.0060.00916.26
7.3.200.0170.00016.33
7.3.190.0100.00716.58
7.3.180.0080.00816.59
7.3.170.0040.01216.38
7.3.160.0120.00416.30
7.3.10.0030.01016.57
7.3.00.0090.00316.80
7.2.330.0110.00816.29
7.2.320.0120.00916.63
7.2.310.0070.01116.32
7.2.300.0130.00316.42
7.2.290.0140.00516.43
7.2.130.0000.01616.66
7.2.120.0090.00016.73
7.2.110.0030.00916.64
7.2.100.0090.00916.88
7.2.90.0000.01416.81
7.2.80.0000.01616.71
7.2.70.0090.00316.80
7.2.60.0060.00616.87
7.2.50.0030.00616.71
7.2.40.0060.00616.59
7.2.30.0140.00016.96
7.2.20.0030.01016.95
7.2.10.0040.00817.00
7.2.00.0040.01018.11
7.1.250.0000.01415.82
7.1.200.0030.01015.86
7.1.100.0080.00318.14
7.1.70.0120.00417.12
7.1.60.0100.01619.47
7.1.00.0000.08022.41
7.0.200.0320.00714.51
7.0.60.0930.00019.92
7.0.50.0930.00020.45
7.0.40.0830.00020.45
7.0.30.0800.00020.43
7.0.20.0830.00020.44
7.0.10.0830.00020.21
7.0.00.0870.00020.23
5.6.280.0030.07321.10
5.6.210.0730.00020.57
5.6.200.1000.00021.18
5.6.190.0870.00021.02
5.6.180.0730.00021.18
5.6.170.0770.00021.03
5.6.160.0870.00021.21
5.6.150.0800.00021.05
5.6.140.0700.00021.05
5.6.130.0900.00021.12
5.6.120.0870.00021.13
5.6.110.0700.00021.07
5.6.100.0730.00021.01
5.6.90.0870.00021.04
5.6.80.0770.00020.59
5.6.70.0770.00020.55
5.6.60.0930.00020.57
5.6.50.1000.00020.45
5.6.40.1070.00020.43
5.6.30.0970.00020.32
5.6.20.0700.00020.41
5.6.10.0800.00020.56
5.6.00.0830.00020.40
5.5.350.0770.00020.45
5.5.340.1000.00020.71
5.5.330.0830.00021.05
5.5.320.0730.00020.71
5.5.310.0770.00020.87
5.5.300.0730.00021.00
5.5.290.0830.00021.02
5.5.280.0730.00020.87
5.5.270.0770.00020.77
5.5.260.0900.00020.82
5.5.250.0870.00020.52
5.5.240.0730.00020.09
5.5.230.0770.00020.20
5.5.220.0830.00020.32
5.5.210.1100.00020.38
5.5.200.0930.00020.30
5.5.190.0700.00020.18
5.5.180.0700.00020.17
5.5.160.0800.00020.30
5.5.150.0800.00020.25
5.5.140.0830.00020.18
5.5.130.0800.00020.18
5.5.120.0770.00020.14
5.5.110.0670.00020.17
5.5.100.0900.00020.20
5.5.90.0700.00020.20
5.5.80.0770.00020.17
5.5.70.0800.00020.08
5.5.60.0800.00020.00
5.5.50.0770.00020.08
5.5.40.0800.00020.09
5.5.30.0730.00020.25
5.5.20.0730.00020.10
5.5.10.0730.00020.05
5.5.00.0900.00020.23

preferences:
63.44 ms | 400 KiB | 5 Q