3v4l.org

run code in 300+ PHP versions simultaneously
<?php function func(&$data) { foreach ($data as $key => $value) { if (is_array($value)) { func($data[$key]); } } } $data = [ ['zero' => [0]], ['one' => [1]], ]; debug_zval_dump($data[1]['one']); //refcount=2 for ($i = 0; $i < 10000; $i++) func($data); debug_zval_dump($data[1]['one']); //refcount=3

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)
8.3.60.0100.01016.37
8.3.50.0120.01621.28
8.3.40.0080.01218.67
8.3.30.0130.00618.67
8.3.20.0070.00320.22
8.3.10.0000.01021.69
8.3.00.0030.00723.61
8.2.180.0120.00618.41
8.2.170.0160.00322.96
8.2.160.0090.00920.31
8.2.150.0030.00724.18
8.2.140.0030.00724.66
8.2.130.0070.00319.95
8.2.120.0100.00026.35
8.2.110.0000.01420.52
8.2.100.0000.01617.72
8.2.90.0060.00618.22
8.2.80.0030.00918.03
8.2.70.0000.01218.05
8.2.60.0060.00617.80
8.2.50.0060.00618.10
8.2.40.0000.01120.47
8.2.30.0030.00819.57
8.2.20.0060.00617.70
8.2.10.0060.00918.25
8.2.00.0040.00818.13
8.1.280.0100.01025.92
8.1.270.0070.01423.96
8.1.260.0070.00428.09
8.1.250.0030.00728.09
8.1.240.0070.01822.08
8.1.230.0060.00922.20
8.1.220.0030.01017.74
8.1.210.0040.00818.77
8.1.200.0030.01017.35
8.1.190.0000.01217.23
8.1.180.0000.01318.10
8.1.170.0030.00918.57
8.1.160.0030.00822.23
8.1.150.0060.00618.80
8.1.140.0060.00619.60
8.1.130.0030.00817.75
8.1.120.0000.01117.50
8.1.110.0060.00617.48
8.1.100.0060.00617.32
8.1.90.0060.00617.44
8.1.80.0030.00817.48
8.1.70.0030.01017.47
8.1.60.0030.01017.50
8.1.50.0030.01017.54
8.1.40.0030.01017.53
8.1.30.0100.00717.58
8.1.20.0030.01017.62
8.1.10.0030.00917.48
8.1.00.0030.01017.57
8.0.300.0040.00719.90
8.0.290.0040.00816.75
8.0.280.0030.00818.45
8.0.270.0040.00817.25
8.0.260.0030.00817.26
8.0.250.0000.01116.93
8.0.240.0060.00616.86
8.0.230.0080.00417.00
8.0.220.0040.00816.84
8.0.210.0040.00816.82
8.0.200.0060.00916.89
8.0.190.0070.00716.96
8.0.180.0030.01316.84
8.0.170.0030.01016.91
8.0.160.0030.00916.89
8.0.150.0030.01016.73
8.0.140.0030.01016.82
8.0.130.0000.01113.26
8.0.120.0060.00916.82
8.0.110.0030.01016.80
8.0.100.0030.01016.79
8.0.90.0070.00716.79
8.0.80.0100.02116.95
8.0.70.0060.00616.80
8.0.60.0000.01216.72
8.0.50.0060.00616.90
8.0.30.0120.01417.14
8.0.20.0140.01517.40
8.0.10.0000.01216.80
8.0.00.0160.01716.80
7.4.330.0030.00616.72
7.4.320.0030.00816.64
7.4.300.0030.00916.57
7.4.290.0000.01216.61
7.4.280.0060.01016.52
7.4.270.0030.00916.47
7.4.260.0090.00316.52
7.4.250.0000.01316.60
7.4.240.0050.00816.55
7.4.230.0030.01016.72
7.4.220.0090.02416.68
7.4.210.0170.01316.55
7.4.200.0000.01216.60
7.4.160.0060.01716.64
7.4.150.0100.01317.40
7.4.140.0110.01417.86
7.4.130.0090.01416.50
7.4.120.0080.01716.49
7.4.110.0070.01716.49
7.4.100.0130.01316.52
7.4.90.0070.01516.57
7.4.80.0090.02019.39
7.4.70.0060.01616.68
7.4.60.0070.01716.51
7.4.50.0120.00916.58
7.4.40.0130.02016.38
7.4.30.0110.01416.61
7.4.00.0040.02114.86
7.3.330.0030.00713.39
7.3.320.0000.01313.34
7.3.310.0040.00816.19
7.3.300.0040.00816.41
7.3.290.0040.01816.38
7.3.280.0090.01616.32
7.3.270.0090.01617.40
7.3.260.0030.02016.45
7.3.250.0080.01816.39
7.3.240.0080.01616.33
7.3.230.0030.02016.60
7.3.210.0100.01416.26
7.3.200.0100.01319.39
7.3.190.0100.01616.30
7.3.180.0040.01916.36
7.3.170.0190.00716.30
7.3.160.0070.01616.59
7.3.10.0030.01616.78
7.3.00.0100.01016.40
7.2.330.0000.02516.81
7.2.320.0170.01816.77
7.2.310.0100.01616.75
7.2.300.0090.01516.83
7.2.290.0100.01716.73
7.2.130.0070.01116.90
7.2.120.0040.01516.92
7.2.110.0070.01016.93
7.2.100.0060.01616.90
7.2.90.0030.01817.07
7.2.80.0050.01716.84
7.2.70.0100.01216.71
7.2.60.0080.01516.99
7.2.50.0100.01316.95
7.2.40.0000.02216.94
7.2.30.0070.01417.10
7.2.20.0090.01217.02
7.2.10.0090.00917.13
7.2.00.0050.01718.01
7.1.250.0000.01915.91
7.1.200.0110.00815.85
7.1.100.0030.01318.05
7.1.70.0070.02017.20
7.1.60.0000.03119.18
7.1.50.0180.01216.99
7.1.00.0030.08722.45
7.0.200.0070.01416.74
7.0.60.0270.08321.61
7.0.50.0000.06317.89
7.0.40.0100.09020.23
7.0.30.0230.08720.26
7.0.20.0300.06720.08
7.0.10.0100.07320.23
7.0.00.0000.05020.09
5.6.280.0030.07021.13
5.6.210.0100.05320.63
5.6.200.0000.09018.19
5.6.190.0030.07320.33
5.6.180.0430.07720.50
5.6.170.0200.10320.46
5.6.160.0030.06020.48
5.6.150.0030.10718.16
5.6.140.0070.10718.18
5.6.130.0070.10018.28
5.6.120.0030.10721.02
5.6.110.0130.08021.05
5.6.100.0130.09721.11
5.6.90.0070.07721.01
5.6.80.0170.08020.49
5.5.350.0200.11320.43
5.5.340.0100.09717.99
5.5.330.0070.08020.44
5.5.320.0270.11020.24
5.5.310.0330.08720.51
5.5.300.0070.10318.13
5.5.290.0130.09718.08
5.5.280.0070.11720.72
5.5.270.0000.06720.84
5.5.260.0200.11020.67
5.5.250.0070.12020.69
5.5.240.0130.10720.19

preferences:
64.55 ms | 401 KiB | 5 Q