3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { private $foo = ["a" => [1, 2, 3]]; function __get($a) { if (isset($this->foo[$a])) { return $this->foo[$a]; } throw new Exception("Invalid key accessed! Check with isset() first!"); } function __isset($a) { return isset($this->foo[$a]); } } $obj = new A; var_dump(isset($obj->a[1])); var_dump(isset($obj->b[1]));

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)
8.3.60.0090.00618.33
8.3.50.0150.00616.50
8.3.40.0090.00618.50
8.3.30.0110.00418.77
8.3.20.0050.00318.68
8.3.10.0040.00421.79
8.3.00.0100.00018.05
8.2.180.0140.00725.92
8.2.170.0110.00418.83
8.2.160.0180.00022.96
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0050.00317.91
8.2.120.0070.00026.35
8.2.110.0100.00021.05
8.2.100.0090.00317.75
8.2.90.0080.00019.11
8.2.80.0000.00817.97
8.2.70.0040.00417.61
8.2.60.0000.01117.80
8.2.50.0060.00318.07
8.2.40.0080.00021.06
8.2.30.0040.00418.04
8.2.20.0000.00717.56
8.2.10.0040.00418.12
8.2.00.0040.00418.11
8.1.280.0150.00625.92
8.1.270.0070.00023.99
8.1.260.0000.00726.35
8.1.250.0000.00828.09
8.1.240.0060.00322.62
8.1.230.0060.00617.46
8.1.220.0040.00417.74
8.1.210.0000.00818.77
8.1.200.0030.00717.23
8.1.190.0000.00917.23
8.1.180.0060.00318.10
8.1.170.0000.00818.52
8.1.160.0050.00321.99
8.1.150.0000.00718.82
8.1.140.0000.00719.52
8.1.130.0030.00517.56
8.1.120.0070.00017.34
8.1.110.0040.00417.41
8.1.100.0030.00517.32
8.1.90.0040.00417.40
8.1.80.0000.00817.39
8.1.70.0060.00317.39
8.1.60.0070.00017.59
8.1.50.0030.00617.53
8.1.40.0040.00417.43
8.1.30.0000.00917.53
8.1.20.0040.00417.58
8.1.10.0040.00417.60
8.1.00.0030.00717.49
8.0.300.0050.00318.77
8.0.290.0040.00416.63
8.0.280.0030.00518.30
8.0.270.0030.00317.20
8.0.260.0030.00317.19
8.0.250.0030.00316.92
8.0.240.0070.00016.87
8.0.230.0030.00316.86
8.0.220.0000.00716.76
8.0.210.0040.00416.84
8.0.200.0030.00316.79
8.0.190.0040.00416.84
8.0.180.0000.00716.88
8.0.170.0040.00416.84
8.0.160.0070.00016.71
8.0.150.0000.00716.74
8.0.140.0000.00816.80
8.0.130.0030.00313.31
8.0.120.0030.00516.70
8.0.110.0000.00816.80
8.0.100.0000.00716.64
8.0.90.0070.00016.82
8.0.80.0040.01116.73
8.0.70.0000.00816.71
8.0.60.0040.00416.79
8.0.50.0000.00716.81
8.0.30.0070.01417.01
8.0.20.0070.01417.40
8.0.10.0000.00716.94
8.0.00.0170.00616.69
7.4.330.0060.00015.08
7.4.320.0000.00616.61
7.4.300.0060.00016.60
7.4.290.0030.00316.58
7.4.280.0040.00416.60
7.4.270.0070.00016.61
7.4.260.0030.00316.57
7.4.250.0050.00316.56
7.4.240.0000.00816.44
7.4.230.0070.00016.59
7.4.220.0000.01516.52
7.4.210.0070.00716.54
7.4.200.0000.00716.67
7.4.160.0100.00616.68
7.4.150.0110.00717.40
7.4.140.0100.01017.86
7.4.130.0120.00716.54
7.4.120.0080.00916.61
7.4.110.0030.01616.70
7.4.100.0060.01016.64
7.4.90.0070.01016.47
7.4.80.0080.00819.39
7.4.70.0080.00816.68
7.4.60.0060.01016.50
7.4.50.0030.01416.13
7.4.40.0030.01416.62
7.4.30.0100.00716.52
7.4.00.0030.01014.63
7.3.330.0000.00613.25
7.3.320.0050.00013.24
7.3.310.0050.00216.19
7.3.300.0000.00616.16
7.3.290.0070.01116.27
7.3.280.0080.00916.26
7.3.270.0090.00917.40
7.3.260.0170.00716.54
7.3.250.0070.01016.46
7.3.240.0120.00516.27
7.3.230.0130.00416.39
7.3.210.0090.00916.52
7.3.200.0080.00819.39
7.3.190.0100.00716.50
7.3.180.0120.00416.42
7.3.170.0100.00716.34
7.3.160.0100.00716.61
7.2.330.0080.01016.53
7.2.320.0140.00316.61
7.2.310.0130.00516.36
7.2.300.0100.00716.50
7.2.290.0040.01216.65
7.2.60.0100.00716.97
7.1.200.0130.00015.48
7.1.70.0000.00717.22
7.1.60.0070.01019.54
7.1.50.0060.00616.86
7.1.00.0070.07322.35
7.0.200.0030.00616.45
7.0.60.0430.06719.92
7.0.50.0530.06020.45
7.0.40.0400.06320.29
7.0.30.0230.06720.47
7.0.20.0070.07320.29
7.0.10.0330.05720.45
7.0.00.0030.08020.32
5.6.280.0030.07321.03
5.6.210.0070.06020.51
5.6.200.0130.06321.07
5.6.190.0330.06721.18
5.6.180.0100.06721.06
5.6.170.0100.06721.08
5.6.160.0400.05321.05
5.6.150.0170.06021.06
5.6.140.0200.05021.06
5.6.130.0070.06321.16
5.6.120.0230.06021.09
5.6.110.0130.07721.05
5.6.100.0170.06021.20
5.6.90.0270.06021.20
5.6.80.0200.05720.39
5.6.70.0270.05020.46
5.6.60.0130.06020.49
5.6.50.0130.05720.54
5.6.40.0130.06320.43
5.6.30.0200.05320.39
5.6.20.0370.05720.43
5.6.10.0130.07020.47
5.6.00.0070.06320.54
5.5.350.0200.04720.34
5.5.340.0330.08021.04
5.5.330.0270.06320.96
5.5.320.0100.07320.96
5.5.310.0130.08020.75
5.5.300.0330.05021.03
5.5.290.0170.06020.87
5.5.280.0170.05321.00
5.5.270.0270.06020.84
5.5.260.0330.06720.71
5.5.250.0070.06320.77
5.5.240.0330.05720.33
5.5.230.0270.06020.38
5.5.220.0270.05020.12
5.5.210.0170.05320.09
5.5.200.0230.04720.38
5.5.190.0130.06020.37
5.5.180.0170.05720.25
5.5.160.0170.06720.37
5.5.150.0100.06320.20
5.5.140.0170.06320.06
5.5.130.0200.05020.11
5.5.120.0230.04720.05
5.5.110.0070.06320.38
5.5.100.0130.07020.28
5.5.90.0230.05720.07
5.5.80.0100.06020.16
5.5.70.0130.05720.09
5.5.60.0230.06320.09
5.5.50.0170.05320.07
5.5.40.0130.07720.07
5.5.30.0100.06320.05
5.5.20.0230.04720.06
5.5.10.0100.06020.14
5.5.00.0200.05020.05

preferences:
57.17 ms | 401 KiB | 5 Q