3v4l.org

run code in 300+ PHP versions simultaneously
<?php $d = array ( array ( 'a1' => true, 'b1' => 'abc' , 'c1' => 'def' ), array ( 'a2' => true, 'b2' => 'fgh', 'c2' => 'ijk' , 'd2' => 'lmn' , 'e2' => 'opq' )); function flatten(array $array) { $result = array(); if (is_array($array)) { foreach ($array as $k => $v) { if (is_array($v)) { $result = array_merge($result, flatten($v)); } else { $result[$k] = $v; } } } return $result; } $dd = flatten($d); echo "<pre>"; print_r($dd); echo "</pre>"; ?>

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)
8.3.60.0120.00618.14
8.3.50.0090.00616.21
8.3.40.0160.00018.73
8.3.30.0000.01618.68
8.3.20.0080.00019.15
8.3.10.0080.00020.94
8.3.00.0040.00419.69
8.2.180.0070.01118.42
8.2.170.0110.00422.96
8.2.160.0000.01518.94
8.2.150.0080.00024.18
8.2.140.0060.00324.66
8.2.130.0000.00819.94
8.2.120.0000.00726.35
8.2.110.0000.01022.12
8.2.100.0110.00017.78
8.2.90.0000.00718.16
8.2.80.0080.00017.97
8.2.70.0060.00317.38
8.2.60.0000.00817.63
8.2.50.0040.00417.48
8.2.40.0040.00419.29
8.2.30.0050.00219.42
8.2.20.0050.00218.17
8.2.10.0030.00618.04
8.2.00.0000.00819.57
8.1.280.0100.00725.92
8.1.270.0030.00623.99
8.1.260.0070.00026.35
8.1.250.0020.00528.09
8.1.240.0000.00820.89
8.1.230.0060.00621.04
8.1.220.0040.00417.79
8.1.210.0000.00918.93
8.1.200.0060.00617.35
8.1.190.0050.00317.36
8.1.180.0040.00419.01
8.1.170.0040.00417.62
8.1.160.0000.00718.90
8.1.150.0040.00418.87
8.1.140.0000.00717.72
8.1.130.0030.00319.01
8.1.120.0040.00417.40
8.1.110.0020.00517.52
8.1.100.0000.00717.49
8.1.90.0070.00317.53
8.1.80.0000.01017.44
8.1.70.0020.00517.36
8.1.60.0030.00517.45
8.1.50.0070.00317.44
8.1.40.0000.00717.46
8.1.30.0040.00417.60
8.1.20.0050.00217.55
8.1.10.0050.00317.66
8.1.00.0030.00617.41
8.0.300.0050.00320.03
8.0.290.0000.00816.88
8.0.280.0050.00318.46
8.0.270.0080.00017.19
8.0.260.0030.00317.18
8.0.250.0000.00717.01
8.0.240.0040.00416.91
8.0.230.0030.00316.96
8.0.220.0000.00716.89
8.0.210.0000.00816.95
8.0.200.0000.00717.00
8.0.190.0050.00316.98
8.0.180.0000.00816.92
8.0.170.0050.00316.91
8.0.160.0070.00016.95
8.0.150.0040.00416.86
8.0.140.0050.00216.85
8.0.130.0000.00613.32
8.0.120.0050.00316.85
8.0.110.0040.00616.82
8.0.100.0040.00416.80
8.0.90.0040.00316.97
8.0.80.0050.01116.89
8.0.70.0040.00416.88
8.0.60.0080.00016.74
8.0.50.0050.00316.80
8.0.30.0150.00517.02
8.0.20.0120.00617.40
8.0.10.0040.00416.97
8.0.00.0050.01416.95
7.4.330.0000.00515.55
7.4.320.0000.00616.61
7.4.300.0060.00016.60
7.4.290.0070.00016.61
7.4.280.0040.00416.51
7.4.270.0070.00016.61
7.4.260.0040.00416.52
7.4.250.0040.00416.38
7.4.240.0030.00316.57
7.4.230.0000.00716.59
7.4.220.0000.00816.68
7.4.210.0090.00716.59
7.4.200.0040.00416.70
7.4.140.0110.00817.86
7.4.130.0130.00516.50
7.4.120.0090.01016.48
7.4.110.0100.00716.48
7.4.100.0070.01016.46
7.4.90.0110.00616.66
7.4.80.0130.00619.39
7.4.70.0030.01316.44
7.4.60.0070.01016.29
7.4.50.0060.00916.48
7.4.40.0070.01116.59
7.4.00.0100.00714.88
7.3.330.0050.00013.41
7.3.320.0030.00313.44
7.3.310.0030.00316.38
7.3.300.0040.00416.27
7.3.290.0000.00716.37
7.3.280.0060.01016.38
7.3.260.0070.01316.43
7.3.240.0080.01216.45
7.3.230.0100.00716.55
7.3.210.0050.02016.36
7.3.200.0030.01416.35
7.3.190.0100.00716.41
7.3.180.0060.01316.62
7.3.170.0030.01316.58
7.3.160.0080.00816.30
7.2.330.0100.01316.43
7.2.320.0130.00316.61
7.2.310.0130.00416.81
7.2.300.0070.01016.71
7.2.290.0080.01416.89
7.2.60.0920.01115.11
7.2.50.0230.01014.93
7.2.40.0270.01115.62
7.2.30.0240.00815.35
7.2.20.1290.01215.54
7.2.10.1010.00815.61
7.2.00.1290.01015.48
7.1.200.0060.00615.94
7.1.170.2160.01113.83
7.1.160.0320.01216.70
7.1.150.0480.01217.00
7.1.140.0160.01316.93
7.1.130.0380.01316.89
7.1.120.1660.00916.87
7.1.110.2000.00916.25
7.1.100.0790.01016.06
7.1.90.1880.01116.33
7.1.80.0970.01116.30
7.1.70.1440.01015.27
7.1.60.0330.01233.22
7.1.50.1740.01933.11
7.1.40.1790.01632.53
7.1.30.1360.01732.66
7.1.20.3000.01932.76
7.1.10.2210.01114.64
7.1.00.2320.01214.77

preferences:
58.9 ms | 401 KiB | 5 Q