3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Queue { private $arr = []; public function enqueue(&$e) { \array_unshift($this->arr, [&$e]); } public function &dequeue() { $x =& \array_pop($this->arr)[0]; return $x; } public function is_empty() { return empty($this->arr); } } $q = new Queue(); $a = [42, 124, 35]; $q->enqueue($a); $a[] = 1337; $b = $q->dequeue(); $b[] = 12345; var_dump($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)
8.3.60.0120.00918.68
8.3.50.0140.00716.32
8.3.40.0150.00318.50
8.3.30.0090.00618.58
8.3.20.0060.00321.59
8.3.10.0000.00723.71
8.3.00.0080.00019.19
8.2.180.0090.00618.54
8.2.170.0070.00722.96
8.2.160.0060.00822.02
8.2.150.0040.00424.18
8.2.140.0040.00424.66
8.2.130.0070.00022.31
8.2.120.0110.00426.35
8.2.110.0060.00320.22
8.2.100.0070.00417.59
8.2.90.0000.00818.03
8.2.80.0000.00817.97
8.2.70.0040.00418.16
8.2.60.0030.00618.28
8.2.50.0070.00318.10
8.2.40.0040.00422.29
8.2.30.0080.00019.23
8.2.20.0040.00418.24
8.2.10.0040.00418.13
8.2.00.0000.00718.13
8.1.280.0000.01425.92
8.1.270.0030.00622.02
8.1.260.0040.00426.35
8.1.250.0040.00428.09
8.1.240.0100.00317.58
8.1.230.0040.00822.69
8.1.220.0040.00417.78
8.1.210.0080.00018.91
8.1.200.0100.00017.48
8.1.190.0000.00817.35
8.1.180.0080.00018.10
8.1.170.0000.00818.62
8.1.160.0070.00018.89
8.1.150.0000.00720.16
8.1.140.0050.00219.46
8.1.130.0000.00718.82
8.1.120.0030.00617.39
8.1.110.0020.00517.45
8.1.100.0040.00417.46
8.1.90.0090.00017.48
8.1.80.0000.00917.30
8.1.70.0040.00417.38
8.1.60.0040.00417.61
8.1.50.0040.00417.48
8.1.40.0040.00417.50
8.1.30.0060.00317.48
8.1.20.0070.00017.64
8.1.10.0070.00017.57
8.1.00.0000.00817.55
8.0.300.0080.00019.73
8.0.290.0060.00316.75
8.0.280.0050.00218.43
8.0.270.0000.00717.19
8.0.260.0030.00316.73
8.0.250.0000.00716.90
8.0.240.0000.00816.97
8.0.230.0030.00716.96
8.0.220.0040.00716.96
8.0.210.0070.00016.78
8.0.200.0030.00316.87
8.0.190.0000.00816.88
8.0.180.0000.00816.93
8.0.170.0000.00716.95
8.0.160.0070.00016.93
8.0.150.0000.00716.73
8.0.140.0000.00716.89
8.0.130.0030.00313.29
8.0.120.0000.00916.73
8.0.110.0000.00716.75
8.0.100.0050.00316.95
8.0.90.0070.00016.94
8.0.80.0000.01616.96
8.0.70.0000.00816.68
8.0.60.0040.00416.89
8.0.50.0040.00416.78
8.0.30.0080.01117.22
8.0.20.0130.00617.41
8.0.10.0000.00716.84
8.0.00.0070.01116.73
7.4.330.0000.00515.55
7.4.320.0030.00316.61
7.4.300.0000.00616.52
7.4.290.0000.00716.44
7.4.280.0040.00416.39
7.4.270.0060.00316.60
7.4.260.0000.00613.27
7.4.250.0030.00316.47
7.4.240.0030.00416.50
7.4.230.0070.00016.49
7.4.220.0070.01816.45
7.4.210.0110.00416.57
7.4.200.0000.00816.72
7.4.160.0110.00516.51
7.4.150.0030.01517.40
7.4.140.0130.01117.86
7.4.130.0130.00616.52
7.4.120.0100.01016.42
7.4.110.0080.00816.31
7.4.100.0110.00716.52
7.4.90.0080.01416.51
7.4.80.0080.01119.39
7.4.70.0090.00616.39
7.4.60.0070.01016.68
7.4.50.0070.00716.44
7.4.40.0100.00716.64
7.4.30.0130.00316.77
7.4.10.0090.00915.73
7.4.00.0110.00715.30
7.3.330.0040.00413.38
7.3.320.0000.00513.38
7.3.310.0030.00316.40
7.3.300.0070.00016.39
7.3.290.0080.00816.37
7.3.280.0090.00816.33
7.3.270.0030.01417.40
7.3.260.0110.00616.57
7.3.250.0120.01016.31
7.3.240.0090.01216.49
7.3.230.0170.00016.38
7.3.210.0100.00716.36
7.3.200.0120.00316.41
7.3.190.0090.00616.38
7.3.180.0140.01016.46
7.3.170.0090.01216.32
7.3.160.0090.01216.62
7.3.130.0030.01515.63
7.3.120.0050.01115.62
7.3.110.0090.00815.62
7.3.100.0040.01115.79
7.3.90.0070.00715.68
7.3.80.0070.00615.67
7.3.70.0060.01015.58
7.3.60.0070.00615.61
7.3.50.0120.00315.69
7.3.40.0080.00515.65
7.3.30.0090.00715.72
7.3.20.0050.01317.28
7.3.10.0040.01016.80
7.3.00.0050.00916.94
7.2.330.0110.00716.71
7.2.320.0160.01116.79
7.2.310.0120.00916.72
7.2.300.0040.01416.69
7.2.290.0140.00316.50
7.2.260.0080.00815.93
7.2.250.0090.01115.66
7.2.240.0070.00915.84
7.2.230.0070.01215.78
7.2.220.0050.01315.82
7.2.210.0030.01215.81
7.2.200.0060.01015.77
7.2.190.0050.01115.83
7.2.180.0050.01315.75
7.2.170.0070.00715.79
7.2.160.0020.01315.67
7.2.150.0060.01317.79
7.2.140.0020.01217.53
7.2.130.0060.00817.12
7.2.120.0060.00917.16
7.2.110.0080.00617.07
7.2.100.0050.00717.18
7.2.90.0080.00817.08
7.2.80.0080.00817.25
7.2.70.0060.01017.20
7.2.60.0070.00617.09
7.2.50.0060.00917.06
7.2.40.0090.00517.11
7.2.30.0070.00817.16
7.2.20.0040.01217.23
7.2.10.0090.00717.16
7.2.00.0080.00817.76
7.1.330.0090.00616.64
7.1.320.0040.01316.72
7.1.310.0060.00916.43
7.1.300.0090.00716.44
7.1.290.0040.00916.42
7.1.280.0090.00616.39
7.1.270.0060.01016.64
7.1.260.0060.00516.57
7.1.250.0070.00615.98
7.1.240.0020.00816.31
7.1.230.0040.01016.34
7.1.220.0090.00516.32
7.1.210.0060.00616.13
7.1.200.0090.00716.13
7.1.190.0030.00816.18
7.1.180.0040.00916.35
7.1.170.0050.00916.19
7.1.160.0050.00916.27
7.1.150.0040.00716.28
7.1.140.0050.00816.15
7.1.130.0080.00816.40
7.1.120.0050.00816.25
7.1.110.0090.00216.40
7.1.100.0070.00916.83
7.1.90.0040.01116.43
7.1.80.0090.00816.26
7.1.70.0090.00316.47
7.1.60.0180.01120.47
7.1.50.0190.01120.48
7.1.40.0230.00520.34
7.1.30.0190.01020.44
7.1.20.0200.01320.43
7.1.10.0170.00815.86
7.1.00.0190.00715.82
7.0.330.0050.00915.93
7.0.320.0030.00915.91
7.0.310.0010.01216.06
7.0.300.0060.00515.79
7.0.290.0040.00815.79
7.0.280.0060.00715.94
7.0.270.0080.00515.97
7.0.260.0040.00815.98
7.0.250.0040.00816.00
7.0.240.0050.00715.94
7.0.230.0080.00616.02
7.0.220.0080.00616.11
7.0.210.0070.00315.90
7.0.200.0210.00615.74
7.0.190.0230.00815.56
7.0.180.0160.00715.51
7.0.170.0190.00915.57
7.0.160.0150.00615.56
7.0.150.0120.01115.50
7.0.140.0180.00815.64
7.0.130.0200.01115.59
7.0.120.0180.00915.61
7.0.110.0160.01015.60
7.0.100.0230.00815.54
7.0.90.0150.01215.63
7.0.80.0290.01015.71
7.0.70.0130.00715.64
7.0.60.0150.00615.54
7.0.50.0130.00915.59
7.0.40.0180.00514.06
7.0.30.0250.00714.19
7.0.20.0190.00614.15
7.0.10.0160.00714.17
7.0.00.0160.01014.15
5.6.400.0000.01215.41
5.6.390.0120.00415.22
5.6.380.0070.00714.92
5.6.370.0050.00915.26
5.6.360.0030.01115.54
5.6.350.0070.00715.22
5.6.340.0090.00615.06
5.6.330.0060.00915.03
5.6.320.0030.00915.17
5.6.310.0050.00915.03
5.6.300.0080.00515.29
5.6.290.0020.01215.21
5.6.280.0100.00515.26
5.6.270.0090.00515.16
5.6.260.0070.00915.40
5.6.250.0060.00915.17
5.6.240.0110.00515.29
5.6.230.0020.01015.14
5.6.220.0100.00615.11
5.6.210.0050.00715.03
5.6.200.0050.00815.17
5.6.190.0040.01315.09
5.6.180.0050.01215.17
5.6.170.0000.01315.16
5.6.160.0060.00815.08
5.6.150.0060.00715.14
5.6.140.0060.00615.21
5.6.130.0070.00715.26
5.6.120.0030.01315.12
5.6.110.0070.00815.32
5.6.100.0050.00715.17
5.6.90.0060.00715.21
5.6.80.0020.01215.11
5.6.70.0090.00615.21
5.6.60.0030.00915.19
5.6.50.0030.01215.12
5.6.40.0050.00915.15
5.6.30.0020.00815.05
5.6.20.0040.01115.15
5.6.10.0000.01515.26
5.6.00.0060.00715.22

preferences:
65.02 ms | 401 KiB | 5 Q