3v4l.org

run code in 300+ PHP versions simultaneously
<?php $c = ['t1' => null, 't2' => 2]; $a= isset($c['t1']); isset($c['t11']) & var_dump('test'); var_dump(isset($sdad)); die; abstract class T { static public $instanses; final private function __construct(){ } public static function getInstance() { if (!(static::$instanses instanceof static)) { static::$instanses = new static; } return static::$instanses; } } class A extends T { static public $instanses; } class B extends A { static public $instanses; } $t = A::getInstance(); var_dump($t); $t1 = B::getInstance(); var_dump($t1); new B(); ?>

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)
8.3.70.0210.00316.38
8.3.60.0030.01516.63
8.3.50.0100.00922.05
8.3.40.0140.00419.02
8.3.30.0030.01618.84
8.3.20.0040.00420.16
8.3.10.0090.00023.66
8.3.00.0080.00019.79
8.2.190.0090.00916.75
8.2.180.0160.00018.14
8.2.170.0110.00322.96
8.2.160.0110.00420.52
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0040.00420.99
8.2.120.0040.00426.35
8.2.110.0110.00020.47
8.2.100.0090.00318.09
8.2.90.0000.00819.36
8.2.80.0040.00417.97
8.2.70.0000.00817.75
8.2.60.0030.00518.05
8.2.50.0040.00418.07
8.2.40.0040.00421.07
8.2.30.0000.01020.68
8.2.20.0040.00417.63
8.2.10.0030.00518.18
8.2.00.0040.00418.05
8.1.280.0140.00325.92
8.1.270.0040.00418.83
8.1.260.0040.00428.09
8.1.250.0060.00328.09
8.1.240.0030.00623.91
8.1.230.0090.00319.09
8.1.220.0080.00017.74
8.1.210.0040.00418.77
8.1.200.0040.00417.48
8.1.190.0050.00317.53
8.1.180.0050.00318.10
8.1.170.0030.00718.72
8.1.160.0000.00720.74
8.1.150.0000.00718.79
8.1.140.0000.00819.56
8.1.130.0070.00017.61
8.1.120.0040.00417.46
8.1.110.0060.00317.40
8.1.100.0020.00517.42
8.1.90.0000.00717.47
8.1.80.0030.00317.29
8.1.70.0040.00417.22
8.1.60.0030.00617.53
8.1.50.0060.00317.43
8.1.40.0030.00617.42
8.1.30.0080.00017.70
8.1.20.0060.00317.64
8.1.10.0070.00017.58
8.1.00.0040.00417.45
8.0.300.0000.00818.77
8.0.290.0050.00216.75
8.0.280.0000.00718.46
8.0.270.0030.00317.16
8.0.260.0060.00017.26
8.0.250.0050.00216.96
8.0.240.0000.00616.91
8.0.230.0070.00017.04
8.0.220.0000.00716.98
8.0.210.0040.00416.94
8.0.200.0000.00716.93
8.0.190.0030.00616.91
8.0.180.0070.00017.04
8.0.170.0040.00416.97
8.0.160.0030.00517.00
8.0.150.0050.00216.93
8.0.140.0000.00816.86
8.0.130.0000.00613.28
8.0.120.0030.00516.78
8.0.110.0070.00016.94
8.0.100.0040.00416.78
8.0.90.0030.00516.90
8.0.80.0150.00916.86
8.0.70.0030.00516.80
8.0.60.0000.00716.96
8.0.50.0000.00816.96
8.0.30.0140.00417.06
8.0.20.0110.00817.41
8.0.10.0040.00417.08
8.0.00.0100.00916.69
7.4.330.0080.00015.08
7.4.320.0000.00616.47
7.4.300.0000.00616.34
7.4.290.0040.00416.50
7.4.280.0080.00016.39
7.4.270.0000.00716.46
7.4.260.0030.00316.52
7.4.250.0000.00716.40
7.4.240.0040.00416.47
7.4.230.0070.00016.25
7.4.220.0200.00616.46
7.4.210.0110.00316.61
7.4.200.0030.00316.53
7.4.160.0160.00016.44
7.4.150.0120.00817.40
7.4.140.0070.01117.86
7.4.130.0110.00716.50
7.4.120.0080.01016.49
7.4.110.0100.00716.73
7.4.100.0110.01116.47
7.4.90.0090.00916.35
7.4.80.0140.00419.39
7.4.70.0070.01016.25
7.4.60.0060.01016.37
7.4.50.0060.00916.50
7.4.40.0030.01916.30
7.4.30.0030.01416.61
7.4.00.0030.01014.89
7.3.330.0030.00313.37
7.3.320.0080.00013.16
7.3.310.0050.00216.41
7.3.300.0060.00016.36
7.3.290.0080.01016.38
7.3.280.0090.01016.31
7.3.270.0140.01117.40
7.3.260.0160.01016.50
7.3.250.0080.01016.35
7.3.240.0110.00516.27
7.3.230.0140.00316.39
7.3.210.0060.00916.36
7.3.200.0160.00016.17
7.3.190.0120.00616.58
7.3.180.0120.00916.24
7.3.170.0140.00716.63
7.3.160.0000.01716.41
7.3.10.0030.01016.65
7.3.00.0070.00516.71
7.2.330.0110.00616.64
7.2.320.0100.01016.57
7.2.310.0040.01316.32
7.2.300.0090.01216.67
7.2.290.0070.01116.43
7.2.130.0040.00816.90
7.2.120.0050.00816.81
7.2.110.0030.00816.82
7.2.100.0080.00516.71
7.2.90.0060.00616.96
7.2.80.0030.00716.88
7.2.70.0020.01216.58
7.2.60.0090.00416.80
7.2.50.0070.00616.78
7.2.40.0110.00317.00
7.2.30.0040.00716.71
7.2.20.0110.00316.86
7.2.10.0030.01016.77
7.2.00.0110.00817.48
7.1.250.0070.00815.77
7.1.200.0040.00415.85
7.1.100.0060.00617.88
7.1.70.0060.00316.93
7.1.60.0170.00719.50
7.1.50.0090.00316.53
7.1.00.0030.07722.54
7.0.200.0090.00016.85
7.0.60.0170.07320.05
7.0.50.0130.04017.85
7.0.40.0030.07320.18
7.0.30.0270.08320.24
7.0.20.0330.07720.23
7.0.10.0100.05020.26
7.0.00.0030.08320.19
5.6.280.0000.03720.90
5.6.210.0070.08020.77
5.6.200.0170.07018.16
5.6.190.0070.04020.47
5.6.180.0370.05020.63
5.6.170.0270.07720.45
5.6.160.0130.07720.61
5.6.150.0130.06718.27
5.6.140.0030.08718.19
5.6.130.0100.07718.27
5.6.120.0070.08720.99
5.6.110.0130.07021.12
5.6.100.0170.07321.14
5.6.90.0130.07720.98
5.6.80.0070.08020.38
5.5.350.0100.07020.40
5.5.340.0100.07318.04
5.5.330.0100.07720.22
5.5.320.0030.07020.38
5.5.310.0230.07320.36
5.5.300.0070.07317.92
5.5.290.0030.04718.01
5.5.280.0130.06320.77
5.5.270.0100.07020.88
5.5.260.0130.07720.88
5.5.250.0030.09020.59
5.5.240.0170.03320.34

preferences:
54.68 ms | 401 KiB | 5 Q