3v4l.org

run code in 300+ PHP versions simultaneously
<?php function flatArray($array) { $retval = array(); foreach ($array as $val) { if (is_array($val)) $retval = array_merge($retval, flatArray($val)); else $retval[] = $val; } return $retval; } $array1 = [['#90', '#91'], ['#92', '#93', '#94', '#95', '#96']]; $array2 = ['#82', '#83', '#84', '#85', '#86']; $array3 = [['#90', '#91', ['100', '101']], ['#92', '#93', '#94', '#95', '#96']]; print_r(flatArray($array1)); print_r(flatArray($array2)); print_r(flatArray($array3));

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)
8.4.140.0140.00717.63
8.4.130.0120.00919.18
8.4.120.0090.01122.59
8.4.110.0050.00518.81
8.4.100.0070.00318.93
8.4.90.0080.00120.70
8.4.80.0120.00818.70
8.4.70.0030.00519.11
8.4.60.0040.00618.82
8.4.50.0080.00718.59
8.4.40.0060.00319.23
8.4.30.0210.00018.73
8.4.20.0150.00319.52
8.4.10.0050.00523.65
8.3.270.0100.01216.93
8.3.260.0100.01016.69
8.3.250.0140.00517.29
8.3.240.0080.01116.43
8.3.230.0060.00316.77
8.3.220.0090.00918.74
8.3.210.0120.00816.60
8.3.200.0050.00416.61
8.3.190.0050.00917.28
8.3.180.0090.00518.94
8.3.170.0040.01118.33
8.3.160.0150.00317.18
8.3.150.0070.01117.20
8.3.140.0040.01220.91
8.3.130.0000.00818.60
8.3.120.0040.00419.17
8.3.110.0060.00320.94
8.3.100.0070.00716.63
8.3.90.0090.00926.77
8.3.80.0030.00718.56
8.3.70.0040.01118.52
8.3.60.0100.01018.43
8.3.50.0110.01116.62
8.3.40.0070.00723.64
8.3.30.0090.00618.54
8.3.20.0040.00424.18
8.3.10.0000.00824.66
8.3.00.0070.00326.16
8.2.290.0080.01120.45
8.2.280.0040.00418.46
8.2.270.0130.00620.55
8.2.260.0070.01116.74
8.2.250.0030.00616.61
8.2.240.0110.00716.96
8.2.230.0030.00522.58
8.2.220.0090.00624.06
8.2.210.0080.00026.77
8.2.200.0060.00316.63
8.2.190.0120.00316.66
8.2.180.0070.01316.48
8.2.170.0090.00618.96
8.2.160.0070.00722.96
8.2.150.0000.00725.66
8.2.140.0000.00824.66
8.2.130.0080.00026.16
8.2.120.0040.00426.16
8.2.110.0030.00620.53
8.2.100.0040.00817.91
8.2.90.0060.00317.88
8.2.80.0080.00018.82
8.2.70.0000.00917.63
8.2.60.0040.00417.75
8.2.50.0040.00417.93
8.2.40.0000.00819.77
8.2.30.0190.00017.67
8.2.20.0140.00617.62
8.2.10.0160.00317.72
8.2.00.0190.00017.71
8.1.330.0110.00622.06
8.1.320.0100.00916.08
8.1.310.0120.00615.82
8.1.300.0040.00418.19
8.1.290.0090.00030.84
8.1.280.0120.00625.92
8.1.270.0040.00424.66
8.1.260.0030.00626.35
8.1.250.0040.00428.09
8.1.240.0070.00422.00
8.1.230.0090.00320.97
8.1.220.0030.00518.68
8.1.210.0040.00418.77
8.1.200.0040.00417.25
8.1.190.0060.00617.35
8.1.180.0080.00018.10
8.1.170.0040.00417.62
8.1.160.0060.00717.34
8.1.150.0110.00717.35
8.1.140.0140.00417.34
8.1.130.0110.00717.35
8.1.120.0120.00717.49
8.1.110.0130.00617.41
8.1.100.0210.00017.35
8.1.90.0100.01017.39
8.1.80.0110.00717.50
8.1.70.0120.00617.54
8.1.60.0120.01217.61
8.1.50.0210.00017.38
8.1.40.0150.00517.62
8.1.30.0190.00517.56
8.1.20.0170.00317.45
8.1.10.0140.00817.33
8.1.00.0180.00017.40
8.0.300.0070.00018.77
8.0.290.0030.00616.88
8.0.280.0140.00416.79
8.0.270.0160.00316.82
8.0.260.0080.00816.80
8.0.250.0110.00716.82
8.0.240.0140.00316.82
8.0.230.0180.00016.86
8.0.220.0190.00016.79
8.0.210.0140.00316.77
8.0.200.0130.00316.76
8.0.190.0140.00316.77
8.0.180.0130.00316.73
8.0.170.0120.00416.90
8.0.160.0000.01716.86
8.0.150.0130.00416.73
8.0.140.0130.00316.75
8.0.130.0150.00216.73
8.0.120.0160.00316.73
8.0.110.0110.00516.82
8.0.100.0140.00416.77
8.0.90.0100.00516.73
8.0.80.0170.00016.79
8.0.70.0130.00316.84
8.0.60.0100.00716.82
8.0.50.0120.00516.73
8.0.30.0140.00316.73
8.0.20.0100.00516.73
8.0.10.0160.00016.77

preferences:
82.47 ms | 403 KiB | 5 Q