3v4l.org

run code in 300+ PHP versions simultaneously
<?php function flatten_array($array, $flat = array()) { $ar = array(); foreach ($array as $i => $items) { foreach ($items as $key => $value) { $ar[$key.'-'.($i+1)] = $value; } } return $ar; } // this line generates a 10x10 multi-d array $a = array_fill(0, 10, array_fill(0, 10, 0)); $flat_array = flatten_array($a); var_dump($flat_array);

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)
8.3.60.0130.01016.63
8.3.50.0130.00618.17
8.3.40.0000.01518.84
8.3.30.0160.00318.82
8.3.20.0040.00420.34
8.3.10.0060.00321.69
8.3.00.0030.00619.02
8.2.180.0160.00316.48
8.2.170.0090.00622.96
8.2.160.0100.00322.07
8.2.150.0050.00324.18
8.2.140.0060.00324.66
8.2.130.0030.00526.16
8.2.120.0090.00019.66
8.2.110.0000.01020.43
8.2.100.0070.00418.16
8.2.90.0040.00419.30
8.2.80.0000.00917.97
8.2.70.0000.01017.63
8.2.60.0040.00418.05
8.2.50.0040.00418.07
8.2.40.0030.00518.22
8.2.30.0040.00419.32
8.2.20.0040.00417.64
8.2.10.0080.00018.21
8.2.00.0080.00017.66
8.1.280.0090.00625.92
8.1.270.0000.01020.73
8.1.260.0080.00026.35
8.1.250.0000.00828.09
8.1.240.0060.00323.93
8.1.230.0030.00919.10
8.1.220.0030.00617.74
8.1.210.0000.01118.77
8.1.200.0040.00417.22
8.1.190.0080.00017.22
8.1.180.0000.00918.10
8.1.170.0000.01118.51
8.1.160.0030.00622.07
8.1.150.0040.00418.82
8.1.140.0000.00819.23
8.1.130.0040.00417.71
8.1.120.0000.00817.38
8.1.110.0080.00017.50
8.1.100.0050.00217.47
8.1.90.0040.00417.39
8.1.80.0040.00417.42
8.1.70.0040.00417.36
8.1.60.0080.00017.59
8.1.50.0060.00317.41
8.1.40.0000.00817.48
8.1.30.0080.00017.50
8.1.20.0000.00817.66
8.1.10.0030.00517.50
8.1.00.0030.00617.52
8.0.300.0000.00718.77
8.0.290.0070.00016.63
8.0.280.0000.00818.37
8.0.270.0070.00017.14
8.0.260.0030.00317.27
8.0.250.0000.00716.99
8.0.240.0040.00417.01
8.0.230.0030.00316.89
8.0.220.0000.00816.82
8.0.210.0040.00416.94
8.0.200.0000.00716.87
8.0.190.0020.00516.94
8.0.180.0040.00416.92
8.0.170.0030.00516.82
8.0.160.0050.00216.87
8.0.150.0040.00416.84
8.0.140.0000.00716.90
8.0.130.0000.00613.26
8.0.120.0000.00816.89
8.0.110.0080.00016.80
8.0.100.0040.00416.80
8.0.90.0030.00616.81
8.0.80.0140.00716.80
8.0.70.0070.00016.70
8.0.60.0080.00016.68
8.0.50.0040.00416.79
8.0.30.0160.01017.13
8.0.20.0130.01017.40
8.0.10.0080.00017.01
8.0.00.0160.00616.75
7.4.330.0000.00515.13
7.4.320.0000.00816.59
7.4.300.0000.00716.60
7.4.290.0040.00416.52
7.4.280.0060.00616.62
7.4.270.0050.00316.66
7.4.260.0000.00816.50
7.4.250.0050.00316.57
7.4.240.0050.00216.50
7.4.230.0040.00416.35
7.4.220.0090.01316.65
7.4.210.0060.00916.55
7.4.200.0030.00616.39
7.4.160.0120.00616.45
7.4.150.0130.00917.40
7.4.140.0140.01117.86
7.4.130.0110.00916.44
7.4.120.0130.01016.48
7.4.110.0090.01216.65
7.4.100.0090.01216.55
7.4.90.0170.00316.49
7.4.80.0130.01019.39
7.4.70.0100.01016.40
7.4.60.0090.00916.54
7.4.50.0000.00816.62
7.4.40.0070.01416.44
7.4.30.0110.01116.63
7.4.00.0070.00715.14
7.3.330.0030.00313.32
7.3.320.0000.00513.41
7.3.310.0030.00316.36
7.3.300.0030.00316.44
7.3.290.0050.00916.39
7.3.280.0090.01016.39
7.3.270.0130.01017.40
7.3.260.0190.00716.57
7.3.250.0150.00716.53
7.3.240.0120.01216.29
7.3.230.0040.01616.56
7.3.210.0100.01016.32
7.3.200.0090.00919.39
7.3.190.0110.00816.45
7.3.180.0110.00816.35
7.3.170.0120.00616.65
7.3.160.0140.00416.46
7.3.10.0170.00716.02
7.3.00.0190.00016.16
7.2.330.0130.00716.90
7.2.320.0080.01116.48
7.2.310.0090.01516.64
7.2.300.0140.00916.46
7.2.290.0060.01216.92
7.2.130.0170.00716.25
7.2.120.0000.01916.75
7.2.110.0210.00616.77
7.2.100.0210.00916.58
7.2.90.0120.00816.38
7.2.80.0090.00916.59
7.2.70.0140.00716.39
7.2.60.0140.00516.71
7.2.50.0100.01017.00
7.2.40.0170.01316.91
7.2.30.0100.01016.71
7.2.20.0100.01016.64
7.2.10.0150.00616.45
7.2.00.0140.00218.16
7.1.250.0230.00815.33
7.1.200.0030.00915.45
7.1.100.0030.00718.05
7.1.70.0040.01117.22
7.1.60.0110.01119.46
7.1.50.0070.01416.96
7.1.00.0070.07322.45
7.0.200.0000.00816.58
7.0.140.0070.07021.92
7.0.60.0030.07320.03
7.0.50.0070.08717.86
7.0.40.0200.07320.13
7.0.30.0200.04020.16
7.0.20.0200.05020.13
7.0.10.0030.06020.07
7.0.00.0030.04320.05
5.6.280.0100.06721.11
5.6.210.0070.08320.73
5.6.200.0030.05718.14
5.6.190.0100.07320.48
5.6.180.0330.06720.46
5.6.170.0100.04720.54
5.6.160.0030.07020.45
5.6.150.0100.08018.29
5.6.140.0030.08718.12
5.6.130.0030.06318.21
5.6.120.0030.06020.97
5.6.110.0030.04021.14
5.6.100.0030.09020.96
5.6.90.0030.05021.13
5.6.80.0070.07020.43
5.5.350.0230.06720.34
5.5.340.0030.07717.96
5.5.330.0100.08020.29
5.5.320.0000.04720.27
5.5.310.0270.08020.34
5.5.300.0030.04718.03
5.5.290.0030.05317.98
5.5.280.0130.07720.77
5.5.270.0000.04720.84
5.5.260.0030.04720.78
5.5.250.0070.06020.46
5.5.240.0100.03020.15
5.4.450.0670.05019.70
5.4.440.0130.06019.59
5.4.430.0730.05019.55
5.4.420.1030.05319.47
5.4.410.0870.08319.35
5.4.400.0430.05719.15
5.4.390.0200.07718.62
5.4.380.0170.05718.76
5.4.370.0100.06718.80
5.4.360.0400.03318.75
5.4.350.0270.07018.52
5.4.340.0230.05018.75
5.4.320.0400.03718.83
5.4.310.0170.06018.59
5.4.300.0300.04718.78
5.4.290.0300.04318.72
5.4.280.0200.05718.75
5.4.270.0270.06718.47
5.4.260.0270.06018.61
5.4.250.0200.05318.73
5.4.240.0200.05718.83
5.4.230.0300.04318.52
5.4.220.0230.06018.84
5.4.210.0430.06018.46
5.4.200.0330.04316.64
5.4.190.0170.05318.64
5.4.180.0070.06018.64
5.4.170.0330.06718.82
5.4.160.0230.07018.59
5.4.150.0200.07718.74
5.4.140.0130.07716.30
5.4.130.0300.06016.33
5.4.120.0130.05716.19
5.4.110.0270.04016.20
5.4.100.0100.06316.27
5.4.90.0030.06716.28
5.4.80.0230.04316.29
5.4.70.0200.05716.24
5.4.60.0370.06716.43
5.4.50.0170.06716.27
5.4.40.0200.05316.18
5.4.30.0070.06016.29
5.4.20.0100.06016.40
5.4.10.0230.04716.43
5.4.00.0170.05315.64
5.3.290.0200.05714.71
5.3.280.0270.05314.64
5.3.270.0230.05714.74
5.3.260.0200.05714.83
5.3.250.0130.06014.64
5.3.240.0130.07314.63
5.3.230.0170.05714.65
5.3.220.0170.06314.71
5.3.210.0170.05714.71
5.3.200.0100.06014.68
5.3.190.0130.05714.63
5.3.180.0200.05314.55
5.3.170.0270.04714.63
5.3.160.0230.05314.73
5.3.150.0130.06014.77
5.3.140.0200.05314.59
5.3.130.0270.05014.60
5.3.120.0130.06014.59
5.3.110.0200.07314.78
5.3.100.0300.05714.17
5.3.90.0170.06714.25
5.3.80.0200.05014.02
5.3.70.0170.05314.13
5.3.60.0400.05014.05
5.3.50.0230.06714.00
5.3.40.0300.05714.08
5.3.30.0370.06313.97
5.3.20.0330.04313.82
5.3.10.0200.05013.70
5.3.00.0170.05313.75
5.2.170.0170.05311.25
5.2.160.0200.05711.18
5.2.150.0230.04011.19
5.2.140.0170.05711.19
5.2.130.0130.06311.23
5.2.120.0270.05011.35
5.2.110.0200.05711.23
5.2.100.0300.04711.15
5.2.90.0230.04011.24
5.2.80.0230.05011.22
5.2.70.0130.05711.10
5.2.60.0230.04311.18
5.2.50.0130.05711.07
5.2.40.0230.03711.02
5.2.30.0130.04711.05
5.2.20.0070.05711.00
5.2.10.0130.04310.86
5.2.00.0130.04010.75
5.1.60.0130.03310.20
5.1.50.0170.03310.04
5.1.40.0200.04710.06
5.1.30.0130.04010.45
5.1.20.0130.03710.41
5.1.10.0070.04010.27
5.1.00.0100.03710.12
5.0.50.0070.0378.76
5.0.40.0070.0338.50
5.0.30.0100.0478.22
5.0.20.0070.0338.39
5.0.10.0100.0308.31
5.0.00.0100.0408.16
4.4.90.0130.0275.92
4.4.80.0200.0175.91
4.4.70.0100.0205.93
4.4.60.0170.0135.97
4.4.50.0070.0235.91
4.4.40.0130.0306.03
4.4.30.0070.0235.89
4.4.20.0070.0276.03
4.4.10.0100.0206.00
4.4.00.0070.0376.04
4.3.110.0130.0275.93
4.3.100.0030.0275.91
4.3.90.0100.0205.80
4.3.80.0000.0435.82
4.3.70.0100.0205.91
4.3.60.0030.0235.84
4.3.50.0100.0205.93
4.3.40.0070.0375.81
4.3.30.0030.0274.68
4.3.20.0030.0274.55
4.3.10.0030.0274.49
4.3.00.0100.0209.38

preferences:
53.53 ms | 400 KiB | 5 Q