3v4l.org

run code in 300+ PHP versions simultaneously
<?php $rose = "black"; ${"rose"} = "white"; $rose = "red"; print_r(${"rose"}); echo "\n\n"; ${" "} = "white"; print_r(${" "}); echo "\n\n"; $arr{" "} = 99; var_dump($arr); $o = (object) $arr; var_dump($o); echo $o->{" "},"\n\n"; class x extends stdClass { public $val; function Show($n){ $this->val = $n; return $this->val; } } $s = new x(); echo $s->Show(100),"\n";

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)
8.3.60.0110.00418.41
8.3.50.0070.01118.20
8.3.40.0100.01018.71
8.3.30.0100.00318.98
8.3.20.0030.00620.33
8.3.10.0040.00423.53
8.3.00.0000.00919.01
8.2.180.0110.01116.50
8.2.170.0070.00722.96
8.2.160.0100.00320.38
8.2.150.0050.00324.18
8.2.140.0060.00324.66
8.2.130.0070.00426.16
8.2.120.0050.00222.24
8.2.110.0070.00321.11
8.2.100.0040.00717.66
8.2.90.0040.00418.97
8.2.80.0040.00417.97
8.2.70.0080.00017.38
8.2.60.0000.00817.80
8.2.50.0000.00818.07
8.2.40.0080.00019.63
8.2.30.0000.00717.84
8.2.20.0060.00317.66
8.2.10.0000.00817.93
8.2.00.0040.00417.53
8.1.280.0070.00725.92
8.1.270.0070.00723.99
8.1.260.0080.00026.35
8.1.250.0040.00428.09
8.1.240.0000.00922.14
8.1.230.0070.00421.04
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0060.00317.10
8.1.190.0090.00017.00
8.1.180.0000.00718.10
8.1.170.0030.00618.59
8.1.160.0040.00421.93
8.1.150.0000.00718.69
8.1.140.0040.00417.36
8.1.130.0000.00617.75
8.1.120.0000.00717.27
8.1.110.0040.00417.36
8.1.100.0000.00717.18
8.1.90.0070.00017.23
8.1.80.0000.00817.28
8.1.70.0000.00717.32
8.1.60.0030.00517.38
8.1.50.0000.00817.39
8.1.40.0090.00017.36
8.1.30.0080.00017.40
8.1.20.0000.00817.50
8.1.10.0030.00617.31
8.1.00.0040.00417.20
8.0.300.0040.00418.77
8.0.290.0050.00316.63
8.0.280.0000.00718.34
8.0.270.0030.00517.04
8.0.260.0030.00317.07
8.0.250.0070.00016.88
8.0.240.0070.00016.77
8.0.230.0050.00216.89
8.0.220.0030.00616.70
8.0.210.0030.00316.78
8.0.200.0040.00416.94
8.0.190.0040.00416.88
8.0.180.0000.00716.83
8.0.170.0000.00816.82
8.0.160.0000.00716.89
8.0.150.0030.00316.64
8.0.140.0070.00016.79
8.0.130.0000.00613.32
8.0.120.0080.00016.70
8.0.110.0080.00016.64
8.0.100.0000.00716.65
8.0.90.0040.00416.64
8.0.80.0090.00616.76
8.0.70.0030.00516.68
8.0.60.0030.00516.79
8.0.50.0070.00016.85
8.0.30.0140.00516.98
8.0.20.0110.00817.40
8.0.10.0040.00416.96
8.0.00.0080.00916.42
7.4.330.0000.00515.00
7.4.320.0030.00316.49
7.4.300.0030.00316.50
7.4.290.0000.00716.61
7.4.280.0070.00316.50
7.4.270.0070.00016.61
7.4.260.0040.00416.47
7.4.250.0000.00716.44
7.4.240.0050.00216.54
7.4.230.0000.00816.54
7.4.220.0100.00716.54
7.4.210.0100.01016.52
7.4.200.0070.00016.51
7.4.160.0050.01116.52
7.4.150.0140.00517.40
7.4.140.0060.01417.86
7.4.130.0090.00916.56
7.4.120.0080.00916.43
7.4.110.0140.00316.63
7.4.100.0090.00916.63
7.4.90.0130.00616.45
7.4.80.0060.01219.39
7.4.70.0070.01016.50
7.4.60.0060.00916.70
7.4.50.0000.00516.71
7.4.40.0030.01316.57
7.4.30.0100.00716.54
7.4.00.0040.01114.85
7.3.330.0000.00613.18
7.3.320.0000.00513.38
7.3.310.0040.00416.41
7.3.300.0030.00316.18
7.3.290.0060.00916.31
7.3.280.0030.01416.26
7.3.270.0090.01217.40
7.3.260.0120.00616.38
7.3.250.0120.00916.27
7.3.240.0070.01016.44
7.3.230.0070.01116.39
7.3.210.0030.01316.33
7.3.200.0170.00019.39
7.3.190.0110.00716.44
7.3.180.0050.01116.59
7.3.170.0060.00916.38
7.3.160.0070.01716.38
7.3.10.0060.00616.39
7.3.00.0100.00316.68
7.2.330.0080.00916.76
7.2.320.0130.00416.71
7.2.310.0100.01316.53
7.2.300.0070.01016.50
7.2.290.0120.00616.73
7.2.130.0100.00717.00
7.2.120.0030.01017.00
7.2.110.0070.01016.97
7.2.100.0030.00916.92
7.2.90.0060.00917.00
7.2.80.0000.01016.75
7.2.70.0100.00717.03
7.2.60.0080.00616.80
7.2.50.0070.01117.09
7.2.40.0030.00716.98
7.2.30.0030.01317.18
7.2.20.0110.00416.89
7.2.10.0060.00316.68
7.2.00.0070.00618.18
7.1.250.0060.00815.57
7.1.200.0100.00315.93
7.1.100.0000.01218.28
7.1.70.0000.00717.16
7.1.60.0060.01819.11
7.1.50.0060.01916.86
7.1.00.0130.06722.44
7.0.200.0040.00716.55
7.0.140.0070.06322.07
7.0.60.0030.08319.92
7.0.50.0030.08717.84
7.0.40.0100.05720.24
7.0.30.0430.05320.23
7.0.20.0200.08020.13
7.0.10.0070.08020.16
7.0.00.0070.07320.11
5.6.280.0030.07320.79
5.6.210.0130.08020.72
5.6.200.0030.09318.27
5.6.190.0030.05320.34
5.6.180.0330.07320.65
5.6.170.0130.05020.47
5.6.160.0030.05320.39
5.6.150.0070.07318.21
5.6.140.0070.07318.23
5.6.130.0230.06318.23
5.6.120.0130.03320.77
5.6.110.0070.08021.14
5.6.100.0070.04021.08
5.6.90.0070.07021.10
5.6.80.0030.08020.51
5.5.350.0170.07020.41
5.5.340.0070.05318.08
5.5.330.0100.07020.41
5.5.320.0000.06020.26
5.5.310.0070.05020.36
5.5.300.0070.04017.96
5.5.290.0070.06318.00
5.5.280.0000.04320.81
5.5.270.0100.08020.73
5.5.260.0070.04020.68
5.5.250.0200.07320.55
5.5.240.0270.06720.05
5.4.450.0730.05319.33
5.4.440.0670.06319.57
5.4.430.0070.06319.46
5.4.420.0630.00019.43
5.4.410.0700.00019.40
5.4.400.0670.00019.16
5.4.390.0630.00019.11
5.4.380.0670.00019.09
5.4.370.0700.00019.00
5.4.360.0630.00019.16
5.4.350.0670.00019.24
5.4.340.0060.04012.02
5.4.320.0090.03612.50
5.4.310.0080.04212.50
5.4.300.0070.03512.50
5.4.290.0100.03812.49
5.4.280.0090.04312.39
5.4.270.0050.03612.39
5.4.260.0060.03612.39
5.4.250.0080.03512.39
5.4.240.0040.03712.39
5.4.230.0080.03712.39
5.4.220.0070.03612.39
5.4.210.0070.03512.38
5.4.200.0080.03612.38
5.4.190.0080.03412.38
5.4.180.0080.03412.38
5.4.170.0060.03612.40
5.4.160.0080.03312.39
5.4.150.0080.04012.39
5.4.140.0060.04312.07
5.4.130.0080.03412.05
5.4.120.0040.03712.02
5.4.110.0040.03712.02
5.4.100.0030.03712.01
5.4.90.0030.03912.01
5.4.80.0050.03712.01
5.4.70.0100.03212.01
5.4.60.0060.03512.01
5.4.50.0070.03512.00
5.4.40.0070.03512.00
5.4.30.0040.03911.99
5.4.20.0040.03811.99
5.4.10.0040.03711.99
5.4.00.0080.03611.48
5.3.290.0090.03812.80
5.3.280.0090.03612.71
5.3.270.0080.03812.73
5.3.260.0060.04112.72
5.3.250.0120.04812.72
5.3.240.0080.05212.72
5.3.230.0080.03912.71
5.3.220.0060.04012.67
5.3.210.0070.04312.68
5.3.200.0060.03712.68
5.3.190.0060.03812.68
5.3.180.0050.03812.67
5.3.170.0040.04112.67
5.3.160.0040.03812.67
5.3.150.0060.03712.68
5.3.140.0140.03812.66
5.3.130.0090.04612.65
5.3.120.0070.03912.65
5.3.110.0030.04412.66
5.3.100.0110.05012.12
5.3.90.0110.05012.10
5.3.80.0080.03912.09
5.3.70.0070.03812.09
5.3.60.0050.04012.07
5.3.50.0080.03912.03
5.3.40.0080.03712.02
5.3.30.0090.03211.99
5.3.20.0060.03611.76
5.3.10.0080.03311.72
5.3.00.0050.03711.71
5.2.170.0030.0349.22
5.2.160.0060.0349.22
5.2.150.0050.0319.22
5.2.140.0060.0309.21
5.2.130.0100.0299.17
5.2.120.0060.0279.18
5.2.110.0070.0279.18
5.2.100.0040.0299.18
5.2.90.0030.0319.18
5.2.80.0100.0259.18
5.2.70.0010.0339.18
5.2.60.0090.0279.12
5.2.50.0060.0299.09
5.2.40.0040.0309.07
5.2.30.0130.0359.05
5.2.20.0070.0259.04
5.2.10.0020.0348.95
5.2.00.0070.0278.81
5.1.60.0060.0228.08
5.1.50.0070.0218.08
5.1.40.0050.0238.06
5.1.30.0020.0278.42
5.1.20.0020.0288.44
5.1.10.0040.0268.16
5.1.00.0040.0258.16
5.0.50.0050.0206.64
5.0.40.0060.0176.50
5.0.30.0040.0316.31
5.0.20.0030.0196.29
5.0.10.0020.0216.26
5.0.00.0050.0296.25
4.4.90.0030.0184.78
4.4.80.0040.0154.76
4.4.70.0020.0174.75
4.4.60.0040.0144.75
4.4.50.0040.0144.77
4.4.40.0030.0254.71
4.4.30.0030.0154.76
4.4.20.0020.0164.85
4.4.10.0030.0154.85
4.4.00.0020.0254.76
4.3.110.0040.0154.67
4.3.100.0040.0134.66
4.3.90.0040.0134.64
4.3.80.0030.0244.58
4.3.70.0010.0164.63
4.3.60.0030.0144.63
4.3.50.0030.0154.62
4.3.40.0030.0314.54
4.3.30.0030.0153.30
4.3.20.0030.0203.29
4.3.10.0030.0183.23
4.3.00.0030.0277.40

preferences:
46.83 ms | 400 KiB | 5 Q