3v4l.org

run code in 300+ PHP versions simultaneously
<?php class test { var $value; var $young_myself; function __construct($var) { test($var); } function test($var) { $this->value=$var; if($self > 10) $this->young_myself=new self($var-10); else $this->young_myself = FALSE; } function getAge(){ if(!!$this->young_myself) return $this->value; else return "Not birth yet"; } } $new = new test(51); echo $new->young_myself->young_myself->young_myself->young_myself->young_myself->getAge();

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)
8.3.60.0040.01118.40
8.3.50.0160.00621.15
8.3.40.0110.00418.83
8.3.30.0080.00818.67
8.3.20.0040.00420.29
8.3.10.0040.00421.60
8.3.00.0040.00419.56
8.2.180.0060.00918.29
8.2.170.0150.00622.96
8.2.160.0130.00020.41
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0040.00426.16
8.2.120.0100.00317.63
8.2.110.0030.00621.96
8.2.100.0060.00617.50
8.2.90.0000.00819.08
8.2.80.0080.00017.97
8.2.70.0000.00817.50
8.2.60.0000.00817.93
8.2.50.0040.00418.07
8.2.40.0000.00821.11
8.2.30.0050.00319.84
8.2.20.0040.00417.57
8.2.10.0000.00717.90
8.2.00.0070.00018.00
8.1.280.0070.00725.92
8.1.270.0090.00020.32
8.1.260.0070.00726.35
8.1.250.0050.00328.09
8.1.240.0070.00422.41
8.1.230.0070.00417.42
8.1.220.0040.00417.74
8.1.210.0080.00018.77
8.1.200.0060.00617.22
8.1.190.0080.00017.23
8.1.180.0080.00018.10
8.1.170.0000.00818.50
8.1.160.0000.00721.80
8.1.150.0000.00718.68
8.1.140.0050.00317.28
8.1.130.0070.00017.58
8.1.120.0000.00717.34
8.1.110.0040.00417.24
8.1.100.0050.00317.38
8.1.90.0000.00717.36
8.1.80.0070.00417.33
8.1.70.0040.00417.31
8.1.60.0040.00417.54
8.1.50.0040.00417.45
8.1.40.0030.00617.48
8.1.30.0000.00817.53
8.1.20.0040.00417.54
8.1.10.0040.00417.41
8.1.00.0040.00417.46
8.0.300.0000.00718.77
8.0.290.0000.00716.75
8.0.280.0000.00818.36
8.0.270.0070.00017.26
8.0.260.0000.00717.24
8.0.250.0080.00016.97
8.0.240.0030.00316.98
8.0.230.0050.00316.94
8.0.220.0030.00316.89
8.0.210.0000.00716.99
8.0.200.0000.00616.98
8.0.190.0030.00516.90
8.0.180.0000.00816.79
8.0.170.0030.00516.84
8.0.160.0070.00016.84
8.0.150.0000.00716.77
8.0.140.0070.00016.88
8.0.130.0000.00813.20
8.0.120.0030.00616.87
8.0.110.0040.00416.75
8.0.100.0070.00016.88
8.0.90.0050.00216.75
8.0.80.0120.00916.92
8.0.70.0080.00016.91
8.0.60.0040.00416.73
8.0.50.0060.00316.88
8.0.30.0050.01416.91
8.0.20.0120.00817.40
8.0.10.0000.00717.07
8.0.00.0070.01116.79
7.4.330.0000.00615.08
7.4.320.0030.00316.38
7.4.300.0000.00616.41
7.4.290.0030.00316.37
7.4.280.0070.00016.48
7.4.270.0000.00716.58
7.4.260.0000.00616.33
7.4.250.0040.00416.43
7.4.240.0050.00216.47
7.4.230.0000.00716.26
7.4.220.0120.00616.39
7.4.210.0110.01016.53
7.4.200.0070.00016.52
7.4.160.0080.00816.62
7.4.150.0120.00617.40
7.4.140.0110.00917.86
7.4.130.0090.00916.55
7.4.120.0050.01116.57
7.4.110.0120.00616.64
7.4.100.0120.00616.47
7.4.90.0150.00316.47
7.4.80.0110.01219.39
7.4.70.0090.00616.33
7.4.60.0130.00316.52
7.4.50.0000.00916.45
7.4.40.0060.00916.13
7.4.30.0040.01916.38
7.4.00.0040.01115.17
7.3.330.0020.00213.20
7.3.320.0030.00313.31
7.3.310.0000.00716.27
7.3.300.0000.00616.38
7.3.290.0060.00016.37
7.3.280.0090.00916.36
7.3.270.0120.00617.40
7.3.260.0100.00616.53
7.3.250.0040.01316.52
7.3.240.0030.01416.38
7.3.230.0140.00416.58
7.3.210.0070.01016.40
7.3.200.0110.01119.39
7.3.190.0130.00316.30
7.3.180.0090.00616.38
7.3.170.0070.01016.33
7.3.160.0100.01016.61
7.3.10.0060.00616.77
7.3.00.0030.00916.72
7.2.330.0110.00816.60
7.2.320.0120.00616.56
7.2.310.0120.00916.68
7.2.300.0060.01016.45
7.2.290.0100.01116.18
7.2.130.0060.00916.85
7.2.120.0110.00416.58
7.2.110.0070.00716.85
7.2.100.0100.00016.70
7.2.90.0030.00916.65
7.2.80.0040.01116.76
7.2.70.0110.00016.80
7.2.60.0040.00916.80
7.2.50.0030.01016.80
7.2.40.0030.01016.85
7.2.30.0130.00316.83
7.2.20.0030.00616.60
7.2.10.0100.00616.78
7.2.00.0020.01218.13
7.1.250.0060.00315.71
7.1.200.0100.00315.63
7.1.100.0070.00717.89
7.1.70.0110.00417.03
7.1.60.0140.01020.03
7.1.50.0070.00716.78
7.1.00.0170.06322.54
7.0.200.0030.00616.34
7.0.60.0170.06319.97
7.0.50.0100.03317.89
7.0.40.0070.05720.10
7.0.30.0200.06020.30
7.0.20.0300.06020.23
7.0.10.0230.05020.07
7.0.00.0030.04320.15
5.6.280.0070.05020.90
5.6.210.0170.07320.67
5.6.200.0000.04318.29
5.6.190.0030.04320.49
5.6.180.0030.05020.55
5.6.170.0200.07020.47
5.6.160.0100.08020.54
5.6.150.0070.08718.16
5.6.140.0100.07318.15
5.6.130.0170.07718.21
5.6.120.0070.08321.00
5.6.110.0070.08021.00
5.6.100.0130.07721.11
5.6.90.0000.04721.13
5.6.80.0070.08020.51
5.6.70.0330.04020.51
5.5.350.0030.08720.50
5.5.340.0030.08317.99
5.5.330.0030.08020.21
5.5.320.0200.08720.37
5.5.310.0230.07720.34
5.5.300.0100.07717.95
5.5.290.0070.08018.08
5.5.280.0030.04720.86
5.5.270.0030.04320.84
5.5.260.0130.06320.73
5.5.250.0200.07320.58
5.5.240.0100.06320.07
5.4.450.0170.06019.38
5.4.440.0300.05319.45
5.4.430.0130.05719.49
5.4.420.0170.05019.16
5.4.410.0170.05019.04
5.4.400.0030.06019.13
5.4.390.0170.05019.28
5.4.380.0230.05019.25
5.4.370.0200.05319.15
5.4.360.0230.04719.27
5.4.350.0130.05718.84
5.4.340.0170.05019.14
5.4.320.0030.06019.14
5.4.310.0270.04718.98
5.4.300.0170.05318.84
5.4.290.0170.05319.28
5.4.280.0170.05318.84
5.4.270.0200.05019.05
5.4.260.0200.05019.29
5.4.250.0170.05319.08
5.4.240.0170.05318.83
5.4.230.0200.05019.23
5.4.220.0200.05019.14
5.4.210.0200.04718.97
5.4.200.0070.05016.91
5.4.190.0270.04719.12
5.4.180.0300.04319.01
5.4.170.0200.05319.26
5.4.160.0230.05019.14
5.4.150.0100.05318.87
5.4.140.0200.04016.72
5.4.130.0170.04016.38
5.4.120.0200.04716.30
5.4.110.0300.05316.55
5.4.100.0400.04716.54
5.4.90.0100.05016.39
5.4.80.0200.03716.74
5.4.70.0200.05316.38
5.4.60.0470.04016.27
5.4.50.0430.04716.24
5.4.40.0370.05016.31
5.4.30.0270.06316.38
5.4.20.0100.05016.37
5.4.10.0100.05016.52
5.4.00.0230.05015.87

preferences:
49.34 ms | 401 KiB | 5 Q