3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private $id; public function __construct() { $this->id = 1; } public function __toString() { return $id . ""; } } $a = new Foo; // $a is a pointer pointing to Foo object 0 $b = $a; // $b is a pointer pointing to Foo object 0, however, $b is a copy of $a unset($a); var_dump($b);

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)
8.3.60.0140.00718.29
8.3.50.0090.00821.97
8.3.40.0110.00418.67
8.3.30.0110.00419.13
8.3.20.0000.00820.21
8.3.10.0050.00321.85
8.3.00.0080.00018.00
8.2.180.0070.01416.38
8.2.170.0070.01022.96
8.2.160.0090.00622.13
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.01426.16
8.2.120.0000.00819.36
8.2.110.0000.00922.25
8.2.100.0070.00618.22
8.2.90.0000.00819.21
8.2.80.0080.00017.97
8.2.70.0060.00317.38
8.2.60.0030.00617.93
8.2.50.0000.00818.07
8.2.40.0080.00020.07
8.2.30.0030.00618.11
8.2.20.0040.00417.68
8.2.10.0040.00418.13
8.2.00.0080.00017.67
8.1.280.0070.00725.92
8.1.270.0030.00622.01
8.1.260.0070.00026.35
8.1.250.0080.01228.09
8.1.240.0040.00424.02
8.1.230.0030.00718.96
8.1.220.0030.00617.74
8.1.210.0040.00418.77
8.1.200.0000.00917.35
8.1.190.0030.00617.23
8.1.180.0040.00418.10
8.1.170.0000.00918.57
8.1.160.0000.00821.90
8.1.150.0040.00418.88
8.1.140.0040.00417.51
8.1.130.0070.00017.75
8.1.120.0000.00817.50
8.1.110.0000.00817.50
8.1.100.0060.00317.36
8.1.90.0000.00817.52
8.1.80.0000.00817.35
8.1.70.0030.00317.41
8.1.60.0000.00817.44
8.1.50.0030.00517.58
8.1.40.0000.00817.39
8.1.30.0040.00417.59
8.1.20.0040.00417.67
8.1.10.0000.00717.65
8.1.00.0000.00817.41
8.0.300.0000.00818.77
8.0.290.0030.00716.63
8.0.280.0000.00718.44
8.0.270.0000.00717.27
8.0.260.0000.00617.30
8.0.250.0000.00716.95
8.0.240.0040.00417.00
8.0.230.0030.00316.96
8.0.220.0030.00716.88
8.0.210.0030.00316.77
8.0.200.0080.00016.93
8.0.190.0000.00716.97
8.0.180.0040.00416.93
8.0.170.0000.00716.98
8.0.160.0000.00716.84
8.0.150.0000.00816.72
8.0.140.0050.00216.86
8.0.130.0030.00313.26
8.0.120.0040.00416.77
8.0.110.0080.00016.95
8.0.100.0040.00417.01
8.0.90.0040.00416.87
8.0.80.0030.01216.85
8.0.70.0040.00416.89
8.0.60.0030.00616.96
8.0.50.0030.00516.93
8.0.30.0100.00917.11
8.0.20.0100.00917.40
8.0.10.0000.00716.99
8.0.00.0130.00416.72
7.4.330.0000.00515.14
7.4.320.0030.00316.43
7.4.300.0030.00316.52
7.4.290.0070.00016.61
7.4.280.0040.00316.48
7.4.270.0080.00016.52
7.4.260.0030.00316.63
7.4.250.0040.00416.57
7.4.240.0050.00216.56
7.4.230.0030.00316.50
7.4.220.0100.00916.54
7.4.210.0030.01116.48
7.4.200.0000.00716.40
7.4.160.0130.01016.52
7.4.150.0110.00817.40
7.4.140.0120.00817.86
7.4.130.0090.00916.55
7.4.120.0070.01016.37
7.4.110.0130.00416.41
7.4.100.0090.00916.52
7.4.90.0120.00616.52
7.4.80.0180.03019.39
7.4.70.0070.01116.40
7.4.60.0100.00716.45
7.4.50.0080.00016.60
7.4.40.0120.00416.49
7.4.30.0080.00816.57
7.4.00.0060.00814.97
7.3.330.0050.00013.10
7.3.320.0000.00513.35
7.3.310.0040.00416.27
7.3.300.0030.00316.22
7.3.290.0060.00916.39
7.3.280.0100.00916.33
7.3.270.0060.01217.40
7.3.260.0190.00316.72
7.3.250.0060.01116.30
7.3.240.0080.00816.29
7.3.230.0160.00716.66
7.3.210.0060.01216.26
7.3.200.0130.00319.39
7.3.190.0210.00016.18
7.3.180.0150.00016.25
7.3.170.0070.01316.54
7.3.160.0050.01116.52
7.3.120.0030.00814.76
7.3.110.0000.01814.70
7.3.100.0100.00014.74
7.3.90.0080.00814.76
7.3.80.0030.00914.57
7.3.70.0060.00314.80
7.3.60.0040.00714.78
7.3.50.0060.00614.67
7.3.40.0120.00014.50
7.3.30.0080.00814.47
7.3.20.0030.01316.59
7.3.10.0030.00716.72
7.3.00.0030.00616.69
7.2.330.0140.00316.65
7.2.320.0060.00916.43
7.2.310.0090.00616.27
7.2.300.0100.00716.46
7.2.290.0030.01316.63
7.2.250.0160.00315.15
7.2.240.0000.02015.24
7.2.230.0070.00715.10
7.2.220.0100.00714.94
7.2.210.0070.00315.19
7.2.200.0060.01314.66
7.2.190.0030.00714.89
7.2.180.0060.01215.10
7.2.170.0100.00714.98
7.2.00.0070.00719.39
7.1.330.0090.00615.85
7.1.320.0070.01015.76
7.1.310.0060.00316.04
7.1.300.0030.01015.95
7.1.290.0090.00915.87
7.1.280.0100.00715.91
7.1.270.0030.01315.66
7.1.260.0030.00615.82
7.1.100.0030.00918.04
7.1.70.0030.00617.14
7.1.60.0040.01819.25
7.1.50.0130.01016.96
7.1.00.0000.08022.41
7.0.200.0000.01616.71
7.0.140.0100.06721.95
7.0.60.0100.05720.09
7.0.50.0130.04317.86
7.0.40.0100.06320.12
7.0.30.0270.07020.23
7.0.20.0230.08020.22
7.0.10.0330.06320.30
7.0.00.0070.06720.22
5.6.280.0070.07021.15
5.6.210.0030.07020.69
5.6.200.0070.07718.15
5.6.190.0130.06320.33
5.6.180.0000.06020.44
5.6.170.0270.06720.55
5.6.160.0070.05020.43
5.6.150.0070.04318.17
5.6.140.0000.09018.29
5.6.130.0030.04018.23
5.6.120.0100.07721.02
5.6.110.0030.04020.94
5.6.100.0130.05020.99
5.6.90.0170.03321.03
5.6.80.0000.05320.39
5.6.70.0330.07020.37
5.5.350.0600.05720.53
5.5.340.0030.06317.98
5.5.330.0070.08720.27
5.5.320.0570.07020.35
5.5.310.0270.08020.30
5.5.300.0070.08717.95
5.5.290.0030.06017.99
5.5.280.0130.08020.78
5.5.270.0030.05720.96
5.5.260.0130.08020.80
5.5.250.0030.08320.66
5.5.240.0100.06320.27
5.4.450.0170.05019.19
5.4.440.0800.05319.34
5.4.430.0570.06319.19
5.4.420.0730.05319.55
5.4.410.0170.04719.06
5.4.400.0330.05318.83
5.4.390.0670.05018.79
5.4.380.0070.06018.79
5.4.370.0100.03718.56
5.4.360.0070.03718.54
5.4.350.0080.04412.02
5.4.340.0060.03812.02
5.4.320.0070.04812.50
5.4.310.0040.04012.50
5.4.300.0050.03812.50
5.4.290.0080.03612.50
5.4.280.0030.03912.39
5.4.270.0060.03612.39
5.4.260.0090.04112.39
5.4.250.0060.03712.40
5.4.240.0100.03512.39
5.4.230.0070.04112.39
5.4.220.0080.04012.39
5.4.210.0030.04912.39
5.4.200.0030.04812.39
5.4.190.0060.04112.39
5.4.180.0060.03612.39
5.4.170.0060.03812.39
5.4.160.0070.03612.39
5.4.150.0070.03512.39
5.4.140.0060.03712.07
5.4.130.0040.03712.06
5.4.120.0050.03512.02
5.4.110.0070.03412.01
5.4.100.0050.03612.02
5.4.90.0060.03912.02
5.4.80.0050.03712.02
5.4.70.0070.03312.01
5.4.60.0030.03612.01
5.4.50.0070.03412.02
5.4.40.0090.03112.00
5.4.30.0050.03612.00
5.4.20.0050.03612.00
5.4.10.0070.03312.00
5.4.00.0050.03711.48
5.3.290.0060.04912.80
5.3.280.0060.03812.71
5.3.270.0100.04012.73
5.3.260.0050.04012.72
5.3.250.0040.03912.71
5.3.240.0070.03812.72
5.3.230.0070.03712.71
5.3.220.0050.03912.68
5.3.210.0050.04312.68
5.3.200.0020.04012.68
5.3.190.0060.03712.68
5.3.180.0070.03612.67
5.3.170.0050.03912.66
5.3.160.0040.03912.67
5.3.150.0060.03712.68
5.3.140.0070.03512.66
5.3.130.0050.04112.66
5.3.120.0070.03812.66
5.3.110.0080.03712.66
5.3.100.0080.03512.12
5.3.90.0090.03312.10
5.3.80.0040.03912.09
5.3.70.0040.03812.09
5.3.60.0070.03512.08
5.3.50.0090.03812.03
5.3.40.0070.03512.03
5.3.30.0050.03611.98
5.3.20.0050.03611.76
5.3.10.0040.03611.73
5.3.00.0050.03711.72
5.2.170.0080.0279.22
5.2.160.0090.0259.23
5.2.150.0040.0319.22
5.2.140.0050.0319.22
5.2.130.0050.0299.18
5.2.120.0050.0289.18
5.2.110.0070.0279.19
5.2.100.0050.0289.18
5.2.90.0070.0269.18
5.2.80.0060.0299.17
5.2.70.0030.0339.18
5.2.60.0080.0269.13
5.2.50.0040.0319.09
5.2.40.0050.0299.07
5.2.30.0040.0319.05
5.2.20.0020.0329.04
5.2.10.0040.0298.95
5.2.00.0020.0328.80
5.1.60.0030.0268.09
5.1.50.0090.0208.09
5.1.40.0050.0248.07
5.1.30.0060.0248.42
5.1.20.0060.0258.44
5.1.10.0020.0288.16
5.1.00.0060.0238.16
5.0.50.0030.0216.65
5.0.40.0030.0196.50
5.0.30.0050.0296.32
5.0.20.0040.0196.27
5.0.10.0010.0226.25
5.0.00.0020.0326.25
4.4.90.0030.0154.78
4.4.80.0010.0174.75
4.4.70.0020.0164.76
4.4.60.0030.0154.75
4.4.50.0010.0174.77
4.4.40.0040.0244.71
4.4.30.0010.0174.76
4.4.20.0010.0174.84
4.4.10.0020.0164.85
4.4.00.0010.0264.76
4.3.110.0010.0174.67
4.3.100.0050.0124.66
4.3.90.0030.0144.63
4.3.80.0020.0244.59
4.3.70.0030.0144.63
4.3.60.0040.0134.63
4.3.50.0050.0144.63
4.3.40.0010.0254.53
4.3.30.0030.0143.30
4.3.20.0010.0173.28
4.3.10.0030.0153.23
4.3.00.0100.0237.93

preferences:
39.26 ms | 401 KiB | 5 Q