3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private $id; public function __construct() { $id = $used++; } public function getId() { 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 $a unlink($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)
8.3.60.0140.00318.81
8.3.50.0120.00922.11
8.3.40.0110.00418.56
8.3.30.0100.00319.25
8.3.20.0090.00020.30
8.3.10.0040.00421.75
8.3.00.0050.00318.16
8.2.180.0120.00918.42
8.2.170.0070.00722.96
8.2.160.0130.00320.28
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0140.00726.16
8.2.120.0080.00020.96
8.2.110.0030.00622.00
8.2.100.0000.01118.09
8.2.90.0040.00419.09
8.2.80.0040.00717.97
8.2.70.0000.00917.50
8.2.60.0040.00417.91
8.2.50.0030.00618.07
8.2.40.0000.00819.94
8.2.30.0030.00619.84
8.2.20.0040.00417.74
8.2.10.0000.00818.00
8.2.00.0050.00217.72
8.1.280.0040.01425.92
8.1.270.0030.00622.05
8.1.260.0000.00726.35
8.1.250.0070.01328.09
8.1.240.0060.00323.85
8.1.230.0000.01119.02
8.1.220.0000.00717.74
8.1.210.0030.00518.77
8.1.200.0000.00917.22
8.1.190.0030.00517.22
8.1.180.0060.00318.10
8.1.170.0030.00618.52
8.1.160.0070.00021.96
8.1.150.0000.00818.89
8.1.140.0030.00617.39
8.1.130.0030.00317.88
8.1.120.0000.00717.36
8.1.110.0050.00317.42
8.1.100.0050.00217.39
8.1.90.0030.00417.30
8.1.80.0000.00717.39
8.1.70.0040.00417.39
8.1.60.0000.00717.58
8.1.50.0050.00317.57
8.1.40.0030.00517.57
8.1.30.0040.00417.52
8.1.20.0000.00917.71
8.1.10.0000.00817.47
8.1.00.0000.00717.54
8.0.300.0000.00718.77
8.0.290.0060.00316.63
8.0.280.0000.00718.25
8.0.270.0030.00317.25
8.0.260.0030.00317.25
8.0.250.0000.00716.88
8.0.240.0000.00716.95
8.0.230.0030.00316.92
8.0.220.0080.00016.78
8.0.210.0000.00716.95
8.0.200.0030.00316.89
8.0.190.0020.00516.99
8.0.180.0030.00516.82
8.0.170.0070.00016.88
8.0.160.0050.00216.90
8.0.150.0000.00716.77
8.0.140.0000.00816.89
8.0.130.0050.00313.32
8.0.120.0070.00016.81
8.0.110.0040.00416.83
8.0.100.0050.00316.93
8.0.90.0000.00716.90
8.0.80.0060.01316.84
8.0.70.0030.00616.79
8.0.60.0000.00816.95
8.0.50.0040.00416.88
8.0.30.0070.01317.06
8.0.20.0160.00717.40
8.0.10.0040.00416.90
8.0.00.0090.00916.72
7.4.330.0060.00015.08
7.4.320.0000.00716.48
7.4.300.0000.00616.61
7.4.290.0000.00716.53
7.4.280.0090.00016.55
7.4.270.0000.00716.66
7.4.260.0000.00716.55
7.4.250.0050.00216.55
7.4.240.0050.00216.61
7.4.230.0030.00316.59
7.4.220.0060.01216.51
7.4.210.0070.00716.42
7.4.200.0070.00016.61
7.4.160.0060.00916.66
7.4.150.0270.02217.40
7.4.140.0110.00917.86
7.4.130.0110.00516.43
7.4.120.0080.00916.53
7.4.110.0100.00716.58
7.4.100.0110.00916.47
7.4.90.0070.01016.43
7.4.80.0060.01319.39
7.4.70.0140.00916.44
7.4.60.0100.00716.61
7.4.50.0000.00816.32
7.4.40.0040.01216.38
7.4.30.0100.00616.40
7.4.00.0030.01414.92
7.3.330.0000.00513.34
7.3.320.0050.00013.43
7.3.310.0000.00716.41
7.3.300.0030.00316.44
7.3.290.0030.01616.41
7.3.280.0060.01316.39
7.3.270.0060.01317.40
7.3.260.0090.00916.64
7.3.250.0140.00316.49
7.3.240.0090.00916.38
7.3.230.0000.01916.39
7.3.210.0090.01516.28
7.3.200.0130.00319.39
7.3.190.0130.00316.63
7.3.180.0060.00916.45
7.3.170.0100.00516.32
7.3.160.0040.01316.54
7.3.120.0070.01014.91
7.2.330.0120.00616.81
7.2.320.0060.01316.70
7.2.310.0100.00716.45
7.2.300.0100.00716.27
7.2.290.0070.01016.71
7.2.60.0070.00316.95
7.2.00.0060.00619.41
7.1.200.0050.00315.55
7.1.100.0060.00618.36
7.1.70.0040.00417.27
7.1.60.0090.01219.25
7.1.50.0100.01016.99
7.1.00.0070.07322.48
7.0.200.0030.01316.61
7.0.140.0030.07322.08
7.0.110.0030.04720.04
7.0.100.0130.08020.05
7.0.90.0100.04319.86
7.0.80.0070.04720.06
7.0.70.0000.04720.02
7.0.60.0030.06020.09
7.0.50.0070.05320.04
7.0.40.0170.08019.74
7.0.30.0130.06719.72
7.0.20.0100.07719.64
7.0.10.0000.08319.71
7.0.00.0030.07019.75
5.6.280.0070.07021.03
5.6.260.0100.05720.60
5.6.250.0130.04720.73
5.6.240.0030.06720.64
5.6.230.0130.07720.58
5.6.220.0070.07720.70
5.6.210.0100.05320.40
5.6.200.0100.06320.60
5.6.190.0100.05720.62
5.6.180.0030.03720.69
5.6.170.0100.04020.86
5.6.160.0070.06020.86
5.6.150.0030.04020.65
5.6.140.0030.05320.56
5.6.130.0030.09020.65
5.6.120.0130.04020.47
5.6.110.0070.03320.46
5.6.100.0030.04020.60
5.6.90.0030.05320.84
5.6.80.0030.05320.03
5.6.70.0130.07319.99
5.6.60.0130.06319.93
5.6.50.0070.03720.10
5.6.40.0170.03020.01
5.6.30.0030.05719.99
5.6.20.0000.03720.00
5.6.10.0130.03320.01
5.6.00.0070.03719.93
5.5.380.0100.05317.52
5.5.370.0070.04317.73
5.5.360.0030.08317.71
5.5.350.0070.05717.52
5.5.340.0100.07318.09
5.5.330.0100.04717.93
5.5.320.0030.08718.23
5.5.310.0070.06017.93
5.5.300.0100.07718.07
5.5.290.0070.03317.91
5.5.280.0100.07018.09
5.5.270.0070.07717.90
5.5.260.0030.08018.12
5.5.250.0070.07017.74
5.5.240.0030.04017.48
5.5.230.0070.06317.47
5.5.220.0000.06017.50
5.5.210.0030.07717.53
5.5.200.0030.03717.49
5.5.190.0000.04317.18
5.5.180.0070.03717.48
5.5.160.0030.04317.47
5.5.150.0070.03017.45
5.5.140.0000.03317.27
5.5.130.0030.03717.41
5.5.120.0070.03317.48
5.5.110.0130.03017.26
5.5.100.0030.03717.34
5.5.90.0030.03717.50
5.5.80.0100.02317.49
5.5.70.0000.03717.18
5.5.60.0000.03317.15
5.5.50.0070.03017.17
5.5.40.0070.03317.17
5.5.30.0100.02317.15
5.5.20.0070.03717.12
5.5.10.0030.04017.29
5.5.00.0000.04317.33
5.4.450.0070.04019.34
5.4.440.0000.04719.67
5.4.430.0030.05019.27
5.4.420.0000.04719.48
5.4.410.0100.07319.16
5.4.400.0070.03318.95
5.4.390.0070.03019.33
5.4.380.0100.03718.99
5.4.370.0070.03319.31
5.4.360.0030.03718.99
5.4.350.0070.03319.31
5.4.340.0000.04019.03
5.4.320.0030.04019.24
5.4.310.0000.03719.33
5.4.300.0030.03319.00
5.4.290.0000.04019.17
5.4.280.0070.03719.14
5.4.270.0030.03319.25
5.4.260.0070.04719.22
5.4.250.0070.02719.02
5.4.240.0030.03018.97
5.4.230.0000.03719.22
5.4.220.0030.03719.17
5.4.210.0000.04019.18
5.4.200.0000.04319.22
5.4.190.0100.02719.02
5.4.180.0030.03019.07
5.4.170.0000.03319.16
5.4.160.0030.04018.97
5.4.150.0070.03318.99
5.4.140.0070.02716.51
5.4.130.0070.03016.32
5.4.120.0000.04016.38
5.4.110.0030.03016.44
5.4.100.0000.04016.50
5.4.90.0030.03016.42
5.4.80.0000.03316.55
5.4.70.0030.03016.40
5.4.60.0030.03316.24
5.4.50.0100.02316.51
5.4.40.0030.03016.58
5.4.30.0100.06016.54
5.4.20.0030.04316.48
5.4.10.0030.07316.53
5.4.00.0030.07715.80
5.3.290.0000.03314.75
5.3.280.0000.04014.73
5.3.270.0000.04014.47
5.3.260.0000.04314.68
5.3.250.0030.03014.46
5.3.240.0030.03014.46
5.3.230.0070.03314.63
5.3.220.0070.02714.42
5.3.210.0030.03014.42
5.3.200.0070.03014.58
5.3.190.0070.02714.57
5.3.180.0070.02714.58
5.3.170.0070.03714.42
5.3.160.0000.03314.58
5.3.150.0070.02714.79
5.3.140.0030.03314.52
5.3.130.0000.03714.54
5.3.120.0100.07014.77
5.3.110.0100.06714.57
5.3.100.0030.04014.07
5.3.90.0030.03314.15
5.3.80.0000.07014.02
5.3.70.0100.05014.10
5.3.60.0030.06014.09
5.3.50.0070.07713.97
5.3.40.0070.04313.93
5.3.30.0070.03713.77
5.3.20.0030.07313.55
5.3.10.0070.06313.51
5.3.00.0070.03313.67
5.2.170.0030.02313.46
5.2.160.0030.02313.46
5.2.150.0030.04713.46
5.2.140.0030.06013.46
5.2.130.0000.02713.46
5.2.120.0030.04713.46
5.2.110.0030.04013.46
5.2.100.0000.04713.46
5.2.90.0000.04313.46
5.2.80.0000.03313.46
5.2.70.0030.03313.46
5.2.60.0000.02713.46
5.2.50.0000.03313.46
5.2.40.0030.03313.46
5.2.30.0030.05013.46
5.2.20.0000.06313.46
5.2.10.0030.05313.46
5.2.00.0000.03313.46
5.1.60.0000.02313.46
5.1.50.0030.03313.46
5.1.40.0000.03313.46
5.1.30.0000.04713.46
5.1.20.0100.04713.46
5.1.10.0030.05713.46
5.1.00.0100.04713.46
5.0.50.0030.02313.46
5.0.40.0000.04713.46
5.0.30.0000.06713.46
5.0.20.0030.01713.46
5.0.10.0030.04013.46
5.0.00.0030.06313.46
4.4.90.0030.02313.46
4.4.80.0000.01313.46
4.4.70.0030.01013.46
4.4.60.0030.02313.46
4.4.50.0000.02013.46
4.4.40.0000.03313.46
4.4.30.0030.02313.46
4.4.20.0070.03013.46
4.4.10.0000.03013.46
4.4.00.0000.03013.46
4.3.110.0000.03313.46
4.3.100.0030.01013.46
4.3.90.0000.01313.46
4.3.80.0070.05013.46
4.3.70.0000.01713.46
4.3.60.0000.03013.46
4.3.50.0000.02013.46
4.3.40.0030.05013.46
4.3.30.0000.03313.46
4.3.20.0070.02713.46
4.3.10.0030.03013.46
4.3.00.0000.01713.46

preferences:
38.94 ms | 401 KiB | 5 Q