3v4l.org

run code in 300+ PHP versions simultaneously
<?php function _flatten_array($arr) { while ($arr) { list($key, $value) = each($arr); is_array($value) ? $arr = $value : $out[$key] = $value; unset($arr[$key]); } return (array)$out; } $aNonFlat = array( 1, 2, array( 3, 4, 5, array( 6, 7 ), 8, 9, ), 10, 11 ); var_export(_flatten_array($aNonFlat));

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)
8.4.130.0060.00518.73
8.4.120.0120.00823.79
8.4.110.0110.00818.83
8.4.100.0150.00617.80
8.4.90.0060.00320.47
8.4.80.0070.01220.56
8.4.70.0130.00718.06
8.4.60.0130.00919.63
8.4.50.0150.00317.91
8.4.40.0090.00617.78
8.4.30.0100.01017.73
8.4.20.0100.00719.60
8.4.10.0060.00319.71
8.3.260.0050.00316.48
8.3.250.0140.00519.08
8.3.240.0100.01016.64
8.3.230.0110.00816.89
8.3.220.0070.01019.02
8.3.210.0060.01016.50
8.3.200.0120.00716.87
8.3.190.0080.00717.28
8.3.180.0160.00416.69
8.3.170.0030.00816.63
8.3.160.0070.01118.92
8.3.150.0070.01117.11
8.3.140.0040.00417.05
8.3.130.0060.00318.49
8.3.120.0030.00919.12
8.3.110.0070.00320.94
8.3.100.0040.00416.61
8.3.90.0070.01126.77
8.3.80.0030.00716.63
8.3.70.0130.00316.58
8.3.60.0100.01318.30
8.3.50.0060.00818.34
8.3.40.0060.00918.84
8.3.30.0060.00918.67
8.3.20.0080.00019.16
8.3.10.0040.00421.77
8.3.00.0000.00823.40
8.2.290.0090.00917.36
8.2.280.0130.00616.69
8.2.270.0110.00816.85
8.2.260.0070.00718.96
8.2.250.0040.00416.71
8.2.240.0030.00619.10
8.2.230.0060.00922.58
8.2.220.0070.00724.06
8.2.210.0000.00826.77
8.2.200.0030.00616.75
8.2.190.0080.00816.63
8.2.180.0060.00918.66
8.2.170.0100.01022.96
8.2.160.0110.00419.12
8.2.150.0080.00024.18
8.2.140.0040.00424.66
8.2.130.0180.00019.64
8.2.120.0080.00026.35
8.2.110.0030.00622.38
8.2.100.0040.00817.91
8.2.90.0040.00417.63
8.2.80.0070.00318.73
8.2.70.0030.00517.63
8.2.60.0040.00417.50
8.2.50.0040.00417.63
8.2.40.0040.00419.34
8.2.30.0040.00419.09
8.2.20.0030.00518.05
8.2.10.0070.00019.45
8.2.00.0000.00719.43
8.1.330.0100.00821.77
8.1.320.0080.01016.47
8.1.310.0030.00516.90
8.1.300.0100.00719.84
8.1.290.0090.00330.84
8.1.280.0070.00725.92
8.1.270.0060.00323.99
8.1.260.0000.00826.35
8.1.250.0130.00328.09
8.1.240.0030.00619.09
8.1.230.0080.00318.99
8.1.220.0000.00817.74
8.1.210.0000.00818.77
8.1.200.0030.00617.53
8.1.190.0060.00317.22
8.1.180.0000.00818.10
8.1.170.0030.00618.50
8.1.160.0040.00418.79
8.1.150.0040.00418.82
8.1.140.0000.00717.67
8.1.130.0030.00319.01
8.1.120.0030.00617.41
8.1.110.0070.00317.43
8.1.100.0040.00417.33
8.1.90.0040.00417.30
8.1.80.0000.00717.41
8.1.70.0000.00717.41
8.1.60.0000.00817.46
8.1.50.0000.00817.48
8.1.40.0000.00817.42
8.1.30.0060.00617.72
8.1.20.0070.00017.71
8.1.10.0040.00417.46
8.1.00.0030.00617.47
8.0.300.0000.00818.77
8.0.290.0040.00416.63
8.0.280.0040.00418.39
8.0.270.0000.00716.81
8.0.260.0000.00817.18
8.0.250.0070.00016.83
8.0.240.0080.00016.96
8.0.230.0000.00716.86
8.0.220.0030.00516.83
8.0.210.0000.00716.82
8.0.200.0000.00716.88
8.0.190.0000.00816.84
8.0.180.0000.00816.87
8.0.170.0030.00616.76
8.0.160.0040.00416.76
8.0.150.0000.00816.86
8.0.140.0000.00716.78
8.0.130.0000.00513.40
8.0.120.0070.00016.86
8.0.110.0070.00016.76
8.0.100.0030.00316.74
8.0.90.0000.00716.72
8.0.80.0070.01116.88
8.0.70.0030.00516.87
8.0.60.0040.00416.84
8.0.50.0040.00416.92
8.0.30.0090.01017.10
8.0.20.0080.01117.40
8.0.10.0040.00416.91
8.0.00.0090.01216.73
7.4.330.0050.00015.55
7.4.320.0030.00316.60
7.4.300.0030.00316.51
7.4.290.0070.00316.60
7.4.280.0040.00416.49
7.4.270.0070.00016.48
7.4.260.0000.00716.50
7.4.250.0060.00316.52
7.4.240.0040.00416.51
7.4.230.0040.00416.68
7.4.220.0030.00616.48
7.4.210.0030.01416.65
7.4.200.0070.00016.49
7.4.160.0070.00916.50
7.4.140.0090.01017.86
7.4.130.0060.01216.66
7.4.120.0090.01116.50
7.4.110.0070.01016.58
7.4.100.0100.00716.43
7.4.90.0090.00916.59
7.4.80.0090.00919.39
7.4.70.0100.01316.63
7.4.60.0120.00916.52
7.4.50.0070.00716.45
7.4.40.0070.01116.21
7.4.00.0060.01114.87
7.3.330.0020.00213.30
7.3.320.0030.00313.46
7.3.310.0000.00716.43
7.3.300.0030.00316.31
7.3.290.0040.00416.41
7.3.280.0090.01216.42
7.3.260.0120.00716.42
7.3.240.0130.00616.56
7.3.230.0030.01316.36
7.3.210.0090.00916.39
7.3.200.0210.00316.49
7.3.190.0090.00616.31
7.3.180.0040.01216.36
7.3.170.0060.01216.29
7.3.160.0000.01616.34
7.3.120.0080.00814.81
7.3.110.0060.01114.80
7.3.100.0080.01014.99
7.3.90.0060.00614.87
7.3.80.0060.00814.88
7.3.70.0050.00714.96
7.3.60.0080.00814.67
7.3.50.0060.01114.65
7.3.40.0070.00514.88
7.3.30.0070.00914.89
7.3.20.0050.00916.63
7.3.10.0080.00816.66
7.3.00.0020.01116.61
7.2.330.0090.00916.66
7.2.320.0140.00416.63
7.2.310.0070.01316.73
7.2.300.0040.01216.51
7.2.290.0140.00416.43
7.2.250.0020.01315.17
7.2.240.0030.01514.89
7.2.230.0080.00914.99
7.2.220.0060.00715.16
7.2.210.0050.00915.09
7.2.200.0050.01014.88
7.2.190.0050.00714.83
7.2.180.0060.00815.00
7.2.170.0030.01014.91
7.2.130.0040.00916.97
7.2.120.0060.00616.84
7.2.110.0030.00616.88
7.2.100.0040.00716.80
7.2.90.0060.00917.03
7.2.80.0090.00616.92
7.2.70.0130.01115.91
7.2.60.0200.00516.03
7.2.50.0150.00916.14
7.2.40.0210.00315.79
7.2.30.0080.01516.01
7.2.20.0090.01615.94
7.2.10.0130.00615.75
7.2.00.0090.01115.90
7.1.330.0070.00815.94
7.1.320.0050.00515.89
7.1.310.0030.00815.78
7.1.300.0080.00515.70
7.1.290.0090.00315.86
7.1.280.0040.01015.86
7.1.270.0040.00915.72
7.1.260.0050.00915.70
7.1.250.0000.00915.66
7.1.200.0070.00715.69
7.1.170.0200.01013.85
7.1.160.0260.00413.71
7.1.150.0230.00713.71
7.1.140.0120.01613.83
7.1.130.0370.00313.84
7.1.120.1340.01014.07
7.1.110.0280.00614.10
7.1.100.0140.00714.07
7.1.90.0120.01213.93
7.1.80.0150.00714.13
7.1.70.0220.00014.07
7.1.60.0440.00732.02
7.1.50.0460.01331.84
7.1.40.0510.00931.59
7.1.30.0380.02031.92
7.1.20.0330.00731.73
7.1.10.0200.00313.65
7.1.00.0230.00613.82

preferences:
31.03 ms | 403 KiB | 5 Q