3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Student { private $classes; public function __construct($classes) { $this->classes = $classes; } public function getClasses() { return $this->classes; } public function combineClasses(Student $otherStudent) { $allClasses = array_unique(array_merge($this->classes, $otherStudent->classes)); $this->classes = $allClasses; $otherStudent->classes = $allClasses; } } $mary = new Student(['CompSci2001', 'CompSci2002']); $john = new Student(['CompSci2002', 'CompSci2003']); $mary->combineClasses($john); var_dump($mary->getClasses()); var_dump($john->getClasses());

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)
8.3.60.0070.01416.73
8.3.50.0150.00019.87
8.3.40.0070.00718.78
8.3.30.0110.00318.44
8.3.20.0000.00819.20
8.3.10.0000.00821.85
8.3.00.0050.00320.77
8.2.180.0170.00016.50
8.2.170.0100.00722.96
8.2.160.0100.00320.26
8.2.150.0000.00824.18
8.2.140.0050.00324.66
8.2.130.0050.00326.16
8.2.120.0040.00420.56
8.2.110.0030.00620.52
8.2.100.0040.00717.72
8.2.90.0040.00420.40
8.2.80.0030.00517.97
8.2.70.0070.00417.93
8.2.60.0040.00418.09
8.2.50.0040.00418.10
8.2.40.0060.00320.64
8.2.30.0000.00819.25
8.2.20.0030.00518.02
8.2.10.0030.00617.91
8.2.00.0070.00017.50
8.1.280.0100.01025.92
8.1.270.0070.00723.99
8.1.260.0000.00826.35
8.1.250.0080.00028.09
8.1.240.0060.00323.86
8.1.230.0140.00420.93
8.1.220.0050.00217.74
8.1.210.0000.00718.87
8.1.200.0000.00817.35
8.1.190.0000.00817.36
8.1.180.0000.00818.10
8.1.170.0050.00318.52
8.1.160.0000.00818.84
8.1.150.0030.00620.39
8.1.140.0030.00619.44
8.1.130.0000.00817.50
8.1.120.0070.00017.32
8.1.110.0000.00817.31
8.1.100.0050.00217.44
8.1.90.0040.00417.26
8.1.80.0020.00517.40
8.1.70.0030.00517.41
8.1.60.0040.00417.48
8.1.50.0040.00417.50
8.1.40.0040.00417.56
8.1.30.0000.00817.64
8.1.20.0000.00817.64
8.1.10.0090.00017.44
8.1.00.0030.00617.44
8.0.300.0070.00019.85
8.0.290.0000.00816.75
8.0.280.0030.00318.35
8.0.270.0030.00317.20
8.0.260.0030.00317.20
8.0.250.0080.00317.00
8.0.240.0000.00716.93
8.0.230.0040.00416.92
8.0.220.0000.00716.84
8.0.210.0000.00716.97
8.0.200.0000.00816.97
8.0.190.0030.00416.93
8.0.180.0000.00816.79
8.0.170.0000.00816.85
8.0.160.0000.00716.93
8.0.150.0000.00816.87
8.0.140.0000.00816.89
8.0.130.0040.00413.32
8.0.120.0040.00416.83
8.0.110.0000.00716.78
8.0.100.0000.00716.89
8.0.90.0080.00016.81
8.0.80.0120.00616.88
8.0.70.0030.00516.77
8.0.60.0040.00416.94
8.0.50.0000.00816.77
8.0.30.0070.01216.92
8.0.20.0110.01117.40
8.0.10.0070.00016.89
8.0.00.0140.00316.69
7.4.330.0020.00215.55
7.4.320.0040.00416.36
7.4.300.0000.00616.62
7.4.290.0030.00516.51
7.4.280.0030.00516.61
7.4.270.0070.00016.62
7.4.260.0000.00816.40
7.4.250.0000.00716.51
7.4.240.0050.00216.52
7.4.230.0000.00716.59
7.4.220.0200.00716.61
7.4.210.0090.00916.55
7.4.200.0030.00316.71
7.4.160.0090.00616.53
7.4.150.0100.01617.40
7.4.140.0120.00917.86
7.4.130.0050.01416.49
7.4.120.0120.00816.43
7.4.110.0060.01316.38
7.4.100.0130.00416.44
7.4.90.0090.00916.52
7.4.80.0100.00719.39
7.4.70.0080.00816.59
7.4.60.0090.00616.61
7.4.50.0060.00916.38
7.4.40.0080.00816.32
7.4.30.0140.00316.63
7.4.00.0030.01315.00
7.3.330.0040.00413.10
7.3.320.0030.00313.05
7.3.310.0000.00716.27
7.3.300.0070.00016.11
7.3.290.0100.00616.26
7.3.280.0080.01416.21
7.3.270.0100.00717.40
7.3.260.0090.00816.19
7.3.250.0080.01016.38
7.3.240.0120.00716.32
7.3.230.0140.00316.47
7.3.210.0090.00916.55
7.3.200.0130.00316.36
7.3.190.0030.02316.54
7.3.180.0060.01016.22
7.3.170.0100.00716.20
7.3.160.0120.00616.29
7.3.10.0000.01616.79
7.3.00.0060.00916.60
7.2.330.0120.00616.57
7.2.320.0090.00916.70
7.2.310.0040.01516.52
7.2.300.0130.01116.80
7.2.290.0050.01116.77
7.2.130.0000.01416.94
7.2.120.0070.00716.72
7.2.110.0060.00316.86
7.2.100.0060.01017.07
7.2.90.0030.01016.95
7.2.80.0060.00616.55
7.2.70.0070.00716.89
7.2.60.0070.00916.79
7.2.50.0110.00316.84
7.2.40.0000.01016.91
7.2.30.0030.00916.88
7.2.20.0070.00717.07
7.2.10.0000.01117.14
7.2.00.0000.01316.61
7.1.250.0030.01215.57
7.1.200.0130.00015.69
7.1.70.0040.00417.21
7.1.60.0070.00717.09
7.1.00.0070.07322.36
7.0.200.0050.00316.49
7.0.130.0200.06320.17
7.0.120.0070.06022.07
7.0.110.0130.05322.04
7.0.100.0170.07022.12
7.0.90.0100.05721.98
7.0.80.0030.06022.14
7.0.70.0100.05322.10
7.0.60.0100.05722.03
7.0.50.0100.05722.08
7.0.40.0200.05322.03
7.0.30.0100.06022.02
7.0.20.0070.07722.19
7.0.10.0070.06321.97
7.0.00.0200.04722.14
5.6.280.0100.05321.00
5.6.270.0000.06320.94
5.6.260.0130.05320.79
5.6.250.0000.06321.04
5.6.240.0100.05721.04
5.6.230.0170.05721.02
5.6.220.0100.05320.98
5.6.210.0100.05320.98
5.6.200.0130.06721.05
5.6.190.0130.06020.84
5.6.180.0130.07020.91
5.6.170.0030.06321.01
5.6.160.0170.05020.84
5.6.150.0130.05321.06
5.6.140.0070.06320.83
5.6.130.0070.05721.00
5.6.120.0100.05721.01
5.6.110.0130.06320.83
5.6.100.0070.07320.79
5.6.90.0130.05720.99
5.6.80.0100.05320.43
5.6.70.0130.05320.35
5.6.60.0170.04720.41
5.6.50.0030.05720.22
5.6.40.0100.07320.20
5.6.30.0100.05320.45
5.6.20.0130.05020.21
5.6.10.0170.04720.18
5.6.00.0130.05720.44

preferences:
59.18 ms | 401 KiB | 5 Q