3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function & bar() { return $this->var = $var = $this->baz(); } public function baz() { return 'hello'; } } $foo = new Foo(); $var = $foo->bar(); var_dump($var); $var = & $foo->bar(); var_dump($var); var_dump($foo->baz());

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)
8.3.60.0070.01316.50
8.3.50.0070.00922.11
8.3.40.0120.00318.89
8.3.30.0110.00418.97
8.3.20.0050.00220.16
8.3.10.0040.00423.51
8.3.00.0080.00019.69
8.2.180.0120.00616.75
8.2.170.0120.00322.96
8.2.160.0070.00720.35
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0040.00421.04
8.2.110.0030.00720.47
8.2.100.0090.00317.62
8.2.90.0050.00317.63
8.2.80.0000.00817.97
8.2.70.0080.00017.80
8.2.60.0040.00417.80
8.2.50.0000.00818.10
8.2.40.0060.00322.36
8.2.30.0000.01018.26
8.2.20.0070.00017.62
8.2.10.0040.00417.89
8.2.00.0030.00517.69
8.1.280.0060.01325.92
8.1.270.0000.00823.96
8.1.260.0040.00426.35
8.1.250.0070.00028.09
8.1.240.0030.00623.89
8.1.230.0070.00319.16
8.1.220.0000.00817.74
8.1.210.0050.00318.77
8.1.200.0000.00817.22
8.1.190.0080.00017.13
8.1.180.0080.00418.10
8.1.170.0080.00018.53
8.1.160.0080.00022.00
8.1.150.0040.00418.86
8.1.140.0070.00017.36
8.1.130.0000.00717.88
8.1.120.0050.00317.32
8.1.110.0000.00817.30
8.1.100.0000.00717.39
8.1.90.0000.00717.30
8.1.80.0000.00817.41
8.1.70.0070.00217.40
8.1.60.0000.00817.48
8.1.50.0060.00317.39
8.1.40.0040.00417.52
8.1.30.0000.00817.70
8.1.20.0040.00417.66
8.1.10.0050.00417.50
8.1.00.0050.00317.35
8.0.300.0030.00519.73
8.0.290.0000.00816.63
8.0.280.0080.00018.38
8.0.270.0030.00617.12
8.0.260.0000.00717.15
8.0.250.0030.00316.86
8.0.240.0000.00716.88
8.0.230.0030.00316.86
8.0.220.0000.00716.87
8.0.210.0000.00716.88
8.0.200.0030.00317.03
8.0.190.0000.00916.88
8.0.180.0000.00716.91
8.0.170.0050.00316.82
8.0.160.0070.00016.80
8.0.150.0040.00416.89
8.0.140.0040.00416.74
8.0.130.0000.00613.33
8.0.120.0000.00716.89
8.0.110.0040.00416.95
8.0.100.0080.00016.73
8.0.90.0040.00416.72
8.0.80.0180.00016.88
8.0.70.0050.00216.90
8.0.60.0030.00316.93
8.0.50.0040.00416.77
8.0.30.0120.01217.10
8.0.20.0060.01217.40
8.0.10.0040.00417.07
8.0.00.0100.00816.58
7.4.330.0020.00215.02
7.4.320.0030.00316.60
7.4.300.0030.00316.59
7.4.290.0030.00316.66
7.4.280.0000.00716.44
7.4.270.0000.00716.47
7.4.260.0030.00316.51
7.4.250.0000.00716.55
7.4.240.0040.00316.46
7.4.230.0050.00216.63
7.4.220.0170.00316.73
7.4.210.0050.01016.48
7.4.200.0040.00416.36
7.4.160.0060.01016.47
7.4.150.0130.00417.40
7.4.140.0090.01217.86
7.4.130.0110.00816.53
7.4.120.0130.00616.47
7.4.110.0060.01016.45
7.4.100.0120.00616.41
7.4.90.0070.01316.38
7.4.80.0130.00919.39
7.4.70.0110.00616.61
7.4.60.0170.00616.53
7.4.50.0030.00516.73
7.4.40.0080.00816.51
7.4.30.0120.00416.52
7.4.00.0060.00914.38
7.3.330.0020.00213.23
7.3.320.0050.00013.44
7.3.310.0000.00716.39
7.3.300.0070.00016.32
7.3.290.0040.01116.32
7.3.280.0070.00916.34
7.3.270.0070.01017.40
7.3.260.0120.00916.29
7.3.250.0170.00316.47
7.3.240.0120.00816.22
7.3.230.0140.00316.57
7.3.210.0120.00616.34
7.3.200.0150.00719.39
7.3.190.0110.00916.35
7.3.180.0190.00416.55
7.3.170.0060.01216.30
7.3.160.0040.01116.36
7.3.120.0030.01014.98
7.3.10.0090.00916.06
7.3.00.0110.00816.47
7.2.330.0070.01016.47
7.2.320.0120.00416.57
7.2.310.0100.01016.46
7.2.300.0080.00916.61
7.2.290.0090.00616.56
7.2.130.0030.00716.64
7.2.120.0090.00916.84
7.2.110.0060.00916.49
7.2.100.0040.00816.54
7.2.90.0200.00316.57
7.2.80.0180.00616.55
7.2.70.0120.00316.54
7.2.60.0100.00716.68
7.2.50.0030.00916.57
7.2.40.0030.00916.55
7.2.30.0060.00616.45
7.2.20.0070.00716.62
7.2.10.0070.00316.67
7.2.00.0080.00617.82
7.1.250.0100.00315.50
7.1.200.0030.01015.62
7.1.100.0040.01117.92
7.1.70.0040.00417.13
7.1.60.0140.01119.70
7.1.50.0070.01016.84
7.1.00.0000.08022.31
7.0.200.0080.00016.57
7.0.140.0030.07022.11
7.0.60.0030.05720.07
7.0.50.0030.04017.84
7.0.40.0100.04020.24
7.0.30.0170.04320.35
7.0.20.0270.04020.06
7.0.10.0300.07720.15
7.0.00.0030.06020.07
5.6.280.0000.07721.05
5.6.210.0130.07020.46
5.6.200.0070.09018.29
5.6.190.0030.09020.77
5.6.180.0070.08020.77
5.6.170.0230.08320.50
5.6.160.0100.08020.54
5.6.150.0070.03718.14
5.6.140.0030.04318.18
5.6.130.0070.07718.16
5.6.120.0000.04720.99
5.6.110.0100.07721.01
5.6.100.0030.09021.14
5.6.90.0100.08720.98
5.6.80.0130.07720.51
5.6.70.0300.06320.52
5.5.350.0000.07320.45
5.5.340.0100.04717.95
5.5.330.0070.03720.14
5.5.320.0200.05320.24
5.5.310.0200.03720.11
5.5.300.0030.04017.97
5.5.290.0000.08717.96
5.5.280.0030.04320.96
5.5.270.0130.05020.68
5.5.260.0100.05320.96
5.5.250.0000.08720.59
5.5.240.0070.05020.21
5.4.450.0070.07319.57
5.4.440.0070.08719.18
5.4.430.0070.08319.56
5.4.420.0100.07019.20
5.4.410.0070.05319.04
5.4.400.0130.06019.16
5.4.390.0130.04019.08
5.4.380.0100.04719.16
5.4.370.0000.05719.00
5.4.360.0000.06319.21
5.4.350.0230.05319.20
5.4.340.0100.07318.92
5.4.320.0070.07319.15
5.4.310.0000.07719.25
5.4.300.0170.06319.02
5.4.290.0030.07719.24
5.4.280.0130.03719.23
5.4.270.0100.07319.24
5.4.260.0070.05019.24
5.4.250.0030.08319.23
5.4.240.0070.04719.16
5.4.230.0070.06719.07
5.4.220.0100.07019.27
5.4.210.0130.05718.84
5.4.200.0100.07018.96
5.4.190.0070.05318.97
5.4.180.0170.06318.96
5.4.170.0030.07718.91
5.4.160.0030.06019.22
5.4.150.0100.07719.12
5.4.140.0130.07016.35
5.4.130.0100.04316.34
5.4.120.0030.05016.50
5.4.110.0100.06316.43
5.4.100.0100.04316.34
5.4.90.0000.05316.41
5.4.80.0030.04716.40
5.4.70.0070.06016.37
5.4.60.0030.06716.36
5.4.50.0030.07716.64
5.4.40.0130.06716.42
5.4.30.0070.07316.49
5.4.20.0070.04316.50
5.4.10.0030.07016.39
5.4.00.0100.06315.79
5.3.290.0030.08014.72
5.3.280.0070.07314.66
5.3.270.0000.04714.63
5.3.260.0070.07314.65
5.3.250.0130.03714.61
5.3.240.0100.07314.63
5.3.230.0170.05714.75
5.3.220.0070.06014.59
5.3.210.0100.07314.56
5.3.200.0070.06014.45
5.3.190.0100.07014.60
5.3.180.0130.06714.55
5.3.170.0070.05714.59
5.3.160.0100.06714.56
5.3.150.0030.04314.73
5.3.140.0030.04714.55
5.3.130.0100.07314.59
5.3.120.0100.06314.70
5.3.110.0100.07014.55
5.3.100.0070.07714.19
5.3.90.0030.07314.07
5.3.80.0100.06314.18
5.3.70.0030.04714.07
5.3.60.0000.05313.93
5.3.50.0070.07313.91
5.3.40.0000.04014.10
5.3.30.0030.03713.84
5.3.20.0030.07013.70
5.3.10.0030.06313.60
5.3.00.0270.03013.54
5.2.170.0030.05711.15
5.2.160.0070.04011.04
5.2.150.0070.03711.10
5.2.140.0000.03311.15
5.2.130.0030.07011.06
5.2.120.0070.05711.11
5.2.110.0030.04011.07
5.2.100.0030.03311.12
5.2.90.0000.03711.03
5.2.80.0000.03711.06
5.2.70.0000.03311.26
5.2.60.0030.05710.95
5.2.50.0070.02311.18
5.2.40.0000.03711.05
5.2.30.0070.06311.04
5.2.20.0000.04011.12
5.2.10.0070.06010.77
5.2.00.0070.05710.60
5.1.60.0030.0279.95
5.1.50.0030.0339.99
5.1.40.0030.0309.89
5.1.30.0000.03710.41
5.1.20.0030.04310.42
5.1.10.0100.03310.10
5.1.00.0130.05010.13
5.0.50.0030.0508.71
5.0.40.0070.0278.41
5.0.30.0030.0478.22
5.0.20.0030.0208.20
5.0.10.0130.0338.34
5.0.00.0030.0608.23
4.4.90.0000.0307.69
4.4.80.0000.0207.69
4.4.70.0000.0307.69
4.4.60.0030.0177.69
4.4.50.0000.0277.69
4.4.40.0000.0507.69
4.4.30.0000.0277.69
4.4.20.0030.0307.69
4.4.10.0000.0377.69
4.4.00.0070.0407.69
4.3.110.0000.0337.69
4.3.100.0030.0307.69
4.3.90.0000.0177.69
4.3.80.0000.0277.69
4.3.70.0030.0307.69
4.3.60.0000.0377.69
4.3.50.0030.0377.69
4.3.40.0000.0537.69
4.3.30.0030.0277.69
4.3.20.0030.0207.69
4.3.10.0030.0377.69
4.3.00.0000.0277.69

preferences:
33.43 ms | 401 KiB | 5 Q