3v4l.org

run code in 500+ PHP versions simultaneously
<?php class Foo { public $prop = 0; public function &getPropRef () { return ($this->prop); } } $obj = new Foo(); $variable = &$obj->getPropRef(); $variable = 1; $variable = 2; $variable = 3; echo $obj->prop;

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)
8.5.90.0040.00516.92
8.5.80.0140.00816.86
8.5.70.0070.00816.84
8.5.60.0130.01016.55
8.5.50.0070.01016.52
8.5.30.0080.00919.46
8.5.20.0090.00820.09
8.5.10.0150.00616.65
8.5.00.0130.00919.98
8.4.240.0100.01119.57
8.4.230.0050.00519.43
8.4.220.0130.00822.06
8.4.210.0110.01119.48
8.4.180.0080.00425.60
8.4.170.0150.01321.86
8.4.160.0160.00723.87
8.4.150.0070.00616.84
8.4.140.0120.00917.43
8.4.130.0130.00817.67
8.4.120.0130.00620.33
8.4.110.0110.00922.48
8.4.100.0140.00717.54
8.4.90.0120.00618.32
8.4.80.0100.01018.75
8.4.70.0150.00817.91
8.4.60.0150.00520.62
8.4.50.0070.01318.80
8.4.40.0120.00617.81
8.4.30.0130.00718.64
8.4.20.0060.00317.92
8.4.10.0060.00319.65
8.3.330.0070.01318.20
8.3.320.0120.00718.27
8.3.310.0070.01018.36
8.3.300.0130.00820.54
8.3.290.0120.00820.78
8.3.280.0140.00618.29
8.3.270.0110.00916.68
8.3.260.0090.00916.73
8.3.250.0090.00918.92
8.3.240.0110.00517.02
8.3.230.0100.00916.52
8.3.220.0090.00918.91
8.3.210.0100.00818.50
8.3.200.0070.00116.55
8.3.190.0050.00319.03
8.3.180.0100.00517.25
8.3.170.0090.00919.06
8.3.160.0040.01418.46
8.3.150.0040.00416.98
8.3.140.0060.00616.71
8.3.130.0100.00018.39
8.3.120.0090.00018.98
8.3.110.0190.00020.94
8.3.100.0080.00016.52
8.3.90.0080.00019.96
8.3.80.0050.00518.43
8.3.70.0150.00018.43
8.3.60.0090.00616.76
8.3.50.0090.00618.35
8.3.40.0120.00621.90
8.3.30.0030.01220.35
8.3.20.0110.01023.52
8.3.10.0090.00621.87
8.2.320.0100.00917.96
8.2.310.0100.00617.99
8.2.300.0100.01018.84
8.2.290.0070.00220.37
8.2.280.0100.00618.27
8.2.270.0110.00717.12
8.2.260.0110.00016.76
8.2.250.0080.00016.69
8.2.240.0000.00816.68
8.2.230.0100.01022.58
8.2.220.0090.00924.06
8.2.210.0060.00326.77
8.2.200.0040.00418.54
8.2.190.0120.00316.75
8.2.180.0040.01416.38
8.2.170.0040.01818.77
8.2.160.0070.00722.96
8.2.150.0070.01022.96
8.2.140.0110.00422.96
8.1.340.0170.00317.38
8.1.330.0130.00521.80
8.1.320.0050.00418.15
8.1.310.0070.00715.98
8.1.300.0040.00416.16
8.1.290.0090.00018.88
8.1.280.0120.00325.92
8.1.270.0070.00723.95
5.0.00.0060.00414.13

preferences:
83.41 ms | 855 KiB | 5 Q