3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { private $b; function __construc($b) { $this->b = $b; } function __get($name) { echo "get $name \n"; return $this->$name; } function __isset($name) { echo "isset $name\n"; return true; } } class B { private $c; function __construc($c) { $this->c = $c; } function __get($name) { echo "get $name \n"; return $this->$name; } function __isset($name) { echo "isset $name\n"; return true; } } $c = new B('plop'); $b = new B($c); $a = new A($b); var_dump(isset($a->b->c));

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)
8.3.60.0110.00818.31
8.3.50.0160.00018.20
8.3.40.0160.00618.54
8.3.30.0180.00018.55
8.3.20.0110.00719.34
8.3.10.0000.00823.66
8.3.00.0000.00820.76
8.2.180.0150.00018.25
8.2.170.0120.00322.96
8.2.160.0100.00322.01
8.2.150.0000.00924.18
8.2.140.0050.00324.66
8.2.130.0070.00019.77
8.2.120.0080.00026.35
8.2.110.0040.00419.39
8.2.100.0080.00417.78
8.2.90.0050.00319.34
8.2.80.0080.00018.79
8.2.70.0040.00417.63
8.2.60.0040.00417.92
8.2.50.0040.00718.07
8.2.40.0030.00518.22
8.2.30.0050.00217.94
8.2.20.0000.00818.09
8.2.10.0000.00717.94
8.2.00.0050.00517.54
8.1.280.0150.00025.92
8.1.270.0060.00318.93
8.1.260.0030.00626.35
8.1.250.0070.00028.09
8.1.240.0100.00019.36
8.1.230.0070.00418.87
8.1.220.0030.00517.74
8.1.210.0000.00818.77
8.1.200.0030.00617.38
8.1.190.0050.00317.23
8.1.180.0000.00818.10
8.1.170.0030.00518.59
8.1.160.0040.00418.81
8.1.150.0050.00318.80
8.1.140.0000.00822.12
8.1.130.0030.00320.27
8.1.120.0000.00817.39
8.1.110.0000.00717.48
8.1.100.0040.00417.48
8.1.90.0000.00717.36
8.1.80.0000.00817.52
8.1.70.0050.00317.35
8.1.60.0000.01217.48
8.1.50.0040.00417.42
8.1.40.0050.00317.51
8.1.30.0030.00917.64
8.1.20.0040.00417.55
8.1.10.0000.00717.58
8.1.00.0040.00417.38
8.0.300.0060.00318.77
8.0.290.0080.00016.75
8.0.280.0000.00718.37
8.0.270.0070.00017.28
8.0.260.0030.00318.44
8.0.250.0000.00716.95
8.0.240.0000.00716.84
8.0.230.0000.00716.83
8.0.220.0000.00816.89
8.0.210.0040.00416.91
8.0.200.0000.00816.95
8.0.190.0060.00316.85
8.0.180.0030.00516.88
8.0.170.0040.00416.96
8.0.160.0050.00216.89
8.0.150.0040.00416.73
8.0.140.0000.00816.91
8.0.130.0000.00513.38
8.0.120.0040.00416.75
8.0.110.0000.00816.75
8.0.100.0070.00017.01
8.0.90.0000.00816.85
8.0.80.0050.01216.90
8.0.70.0050.00216.77
8.0.60.0080.00016.82
8.0.50.0000.00716.71
8.0.30.0100.00817.15
8.0.20.0120.00717.40
8.0.10.0030.00517.02
8.0.00.0090.00816.80
7.4.330.0060.00015.55
7.4.320.0000.00716.50
7.4.300.0030.00316.52
7.4.290.0000.00716.60
7.4.280.0040.00416.63
7.4.270.0030.00316.60
7.4.260.0000.00716.45
7.4.250.0040.00416.48
7.4.240.0070.00016.60
7.4.230.0030.00316.68
7.4.220.0050.00316.41
7.4.210.0070.00716.57
7.4.200.0040.00416.70
7.4.160.0080.00916.46
7.4.140.0120.00617.86
7.4.130.0120.00616.56
7.4.120.0110.00916.55
7.4.110.0090.00916.59
7.4.100.0070.01616.60
7.4.90.0160.00316.58
7.4.80.0070.01019.39
7.4.70.0110.00516.64
7.4.60.0130.00316.54
7.4.50.0060.01016.58
7.4.40.0070.01016.53
7.4.00.0100.00814.94
7.3.330.0020.00213.17
7.3.320.0000.00513.30
7.3.310.0000.01016.36
7.3.300.0000.00716.25
7.3.290.0030.00316.22
7.3.280.0070.01116.27
7.3.260.0120.00616.45
7.3.240.0100.00616.48
7.3.230.0130.00316.57
7.3.210.0100.01016.26
7.3.200.0100.00616.42
7.3.190.0100.00716.43
7.3.180.0070.01016.34
7.3.170.0030.02016.21
7.3.160.0100.00716.46
7.3.120.0110.00614.83
7.3.110.0100.00715.08
7.3.100.0070.01014.90
7.3.90.0030.00714.85
7.3.80.0030.00914.92
7.3.70.0070.00714.70
7.3.60.0040.00715.01
7.3.50.0060.00614.73
7.3.40.0090.00614.98
7.3.30.0130.00014.75
7.3.20.0070.00716.79
7.3.10.0040.01116.72
7.3.00.0080.00616.50
7.2.330.0110.00716.73
7.2.320.0100.01016.57
7.2.310.0130.00316.38
7.2.300.0080.01116.58
7.2.290.0090.01416.72
7.2.250.0170.00014.84
7.2.240.0090.00914.86
7.2.230.0060.00915.21
7.2.220.0060.00614.95
7.2.210.0080.00614.99
7.2.200.0040.01115.11
7.2.190.0040.00415.09
7.2.180.0140.00014.76
7.2.170.0060.01015.02
7.2.130.0030.01116.81
7.2.120.0120.00316.78
7.2.110.0030.01215.71
7.2.100.0040.01315.73
7.2.90.0050.01015.75
7.2.80.0060.01015.97
7.2.70.0140.01015.63
7.2.60.0220.01215.91
7.2.50.1050.00316.03
7.2.40.0680.01415.99
7.2.30.0700.00916.01
7.2.20.0220.00615.76
7.2.10.0050.01015.90
7.2.00.0550.01115.88
7.1.330.0060.00615.88
7.1.320.0070.00715.97
7.1.310.0070.00615.83
7.1.300.0000.01115.75
7.1.290.0100.00315.84
7.1.280.0120.00315.72
7.1.270.0040.00715.95
7.1.260.0060.01015.72
7.1.250.0070.00415.91
7.1.230.0070.00713.98
7.1.220.0140.01413.71
7.1.210.0110.00514.00
7.1.200.0900.00313.89
7.1.190.0220.01013.59
7.1.180.1490.00313.96
7.1.170.0630.01213.96
7.1.160.0120.00913.86
7.1.150.1170.00613.82
7.1.140.0140.00813.72
7.1.130.0630.00914.04
7.1.120.0740.01413.93
7.1.110.1100.00613.70
7.1.100.0960.01313.75
7.1.90.0800.00613.83
7.1.80.0800.00313.88
7.1.70.0040.01313.63
7.1.60.0560.00331.80
7.1.50.1380.01032.01
7.1.40.1890.01031.55
7.1.30.1320.01031.95
7.1.20.1280.01031.59
7.1.10.0300.00614.07
7.1.00.0340.01013.56
5.6.380.0060.01114.25

preferences:
58.55 ms | 400 KiB | 5 Q