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)
8.5.90.0120.00716.83
8.5.80.0050.00316.73
8.5.70.0100.00816.58
8.5.60.0040.00816.85
8.5.50.0070.00818.45
8.5.30.0110.00719.28
8.5.20.0110.00619.98
8.5.10.0110.00816.50
8.5.00.0130.00919.67
8.4.240.0140.00819.59
8.4.230.0030.00519.41
8.4.220.0050.00419.50
8.4.210.0150.00719.54
8.4.180.0050.00519.77
8.4.170.0090.01621.82
8.4.160.0150.00823.72
8.4.150.0080.00316.80
8.4.140.0110.01017.38
8.4.130.0110.00617.63
8.4.120.0110.00820.28
8.4.110.0120.00922.13
8.4.100.0120.00818.42
8.4.90.0120.00818.70
8.4.80.0070.00218.90
8.4.70.0090.01017.95
8.4.60.0090.01018.85
8.4.50.0140.00718.88
8.4.40.0070.01417.50
8.4.30.0060.01318.83
8.4.20.0030.00917.94
8.4.10.0090.00019.61
8.3.330.0130.01018.43
8.3.320.0140.00618.28
8.3.310.0090.00918.23
8.3.300.0100.01120.29
8.3.290.0100.01018.39
8.3.280.0100.01018.20
8.3.270.0090.01216.65
8.3.260.0120.00716.56
8.3.250.0090.00918.88
8.3.240.0090.01017.09
8.3.230.0120.00716.74
8.3.220.0090.00918.82
8.3.210.0110.00616.74
8.3.200.0020.00716.74
8.3.190.0120.00417.00
8.3.180.0040.00419.16
8.3.170.0050.00320.78
8.3.160.0140.00417.08
8.3.150.0120.00617.06
8.3.140.0140.00316.80
8.3.130.0050.00318.30
8.3.120.0070.01120.79
8.3.110.0130.00020.94
8.3.100.0100.00024.06
8.3.90.0040.00426.77
8.3.80.0090.00017.97
8.3.70.0040.01116.63
8.3.60.0070.01416.40
8.3.50.0090.00916.58
8.3.40.0100.00321.98
8.3.30.0100.00320.17
8.3.20.0070.00723.66
8.3.10.0120.00321.57
8.2.320.0130.00718.06
8.2.310.0100.01018.01
8.2.300.0140.00518.69
8.2.290.0140.00420.41
8.2.280.0050.00518.48
8.2.270.0120.00618.84
8.2.260.0110.00716.24
8.2.250.0080.00818.19
8.2.240.0030.00618.97
8.2.230.0100.00022.58
8.2.220.0060.00637.54
8.2.210.0000.00826.77
8.2.200.0130.00016.36
8.2.190.0190.00016.78
8.2.180.0070.00716.38
8.2.170.0110.00418.96
8.2.160.0100.00322.96
8.2.150.0110.00422.96
8.2.140.0150.00022.96
8.1.340.0140.00817.60
8.1.330.0040.00421.89
8.1.320.0110.00816.28
8.1.310.0000.01522.31
8.1.300.0080.00816.18
8.1.290.0090.00030.84
8.1.280.0140.00425.92
8.1.270.0060.00923.96
5.0.00.0050.00514.13

preferences:
77.35 ms | 855 KiB | 5 Q