3v4l.org

run code in 300+ PHP versions simultaneously
<?php function flatten_array($array) { foreach ($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, array_fill(0, 5, 1))); $flat_array = flatten_array($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)
8.3.70.0150.00316.38
8.3.60.0140.01116.75
8.3.50.0140.00721.99
8.3.40.0190.00018.66
8.3.30.0110.00719.39
8.3.20.0060.00320.13
8.3.10.0070.00321.85
8.3.00.0030.00618.96
8.2.180.0090.01316.61
8.2.170.0120.01222.96
8.2.160.0100.00719.43
8.2.150.0040.00724.18
8.2.140.0060.00324.66
8.2.130.0090.00026.16
8.2.120.0060.00320.93
8.2.110.0120.00022.13
8.2.100.0090.00617.84
8.2.90.0000.00917.75
8.2.80.0000.00917.97
8.2.70.0030.00718.04
8.2.60.0000.00917.92
8.2.50.0030.00919.65
8.2.40.0060.00320.32
8.2.30.0040.00419.18
8.2.20.0000.00917.76
8.2.10.0000.00918.11
8.2.00.0030.00617.67
8.1.280.0120.00625.92
8.1.270.0030.00720.48
8.1.260.0080.00326.35
8.1.250.0040.00428.09
8.1.240.0110.00023.75
8.1.230.0110.00419.16
8.1.220.0000.00917.76
8.1.210.0070.00318.77
8.1.200.0120.00017.35
8.1.190.0030.00617.35
8.1.180.0030.00618.10
8.1.170.0060.00318.59
8.1.160.0000.00822.06
8.1.150.0030.00618.93
8.1.140.0060.00319.19
8.1.130.0040.00417.71
8.1.120.0090.00017.50
8.1.110.0040.00417.38
8.1.100.0060.00317.45
8.1.90.0040.00417.49
8.1.80.0030.00617.46
8.1.70.0060.00317.45
8.1.60.0100.00017.54
8.1.50.0040.00717.53
8.1.40.0040.00417.54
8.1.30.0030.00617.68
8.1.20.0060.00317.63
8.1.10.0030.00717.43
8.1.00.0090.00017.40
8.0.300.0000.00819.64
8.0.290.0060.00316.63
8.0.280.0060.00318.32
8.0.270.0000.00817.31
8.0.260.0040.00417.27
8.0.250.0040.00416.87
8.0.240.0000.00816.88
8.0.230.0080.00016.85
8.0.220.0050.00316.87
8.0.210.0080.00016.94
8.0.200.0000.00717.02
8.0.190.0030.00516.96
8.0.180.0080.00016.90
8.0.170.0060.00316.89
8.0.160.0030.00616.87
8.0.150.0030.00616.74
8.0.140.0030.00616.77
8.0.130.0030.00313.32
8.0.120.0000.00916.89
8.0.110.0040.00416.84
8.0.100.0000.00917.01
8.0.90.0090.00016.89
8.0.80.0130.00616.88
8.0.70.0040.00416.80
8.0.60.0030.00516.93
8.0.50.0050.00316.81
8.0.30.0240.01117.24
8.0.20.0200.01117.40
8.0.10.0040.00417.01
8.0.00.0170.01116.75
7.4.330.0000.00715.03
7.4.320.0000.00816.48
7.4.300.0070.00016.61
7.4.290.0090.00016.51
7.4.280.0030.01016.50
7.4.270.0040.00416.65
7.4.260.0030.00616.57
7.4.250.0000.00816.57
7.4.240.0040.00416.55
7.4.230.0030.00616.51
7.4.220.0130.01316.65
7.4.210.0120.01316.55
7.4.200.0030.00516.50
7.4.160.0250.00016.68
7.4.150.0170.01117.40
7.4.140.0100.02017.86
7.4.130.0200.00516.62
7.4.120.0090.01616.44
7.4.110.0160.01116.29
7.4.100.0210.00716.72
7.4.90.0090.01616.46
7.4.80.0130.01019.39
7.4.70.0190.00716.45
7.4.60.0090.01416.36
7.4.50.0040.00716.64
7.4.40.0150.01916.38
7.4.30.0170.01416.51
7.4.00.0090.00914.82
7.3.330.0070.00013.44
7.3.320.0030.00313.37
7.3.310.0030.00616.23
7.3.300.0040.00416.42
7.3.290.0070.01416.34
7.3.280.0100.01216.41
7.3.270.0200.01217.40
7.3.260.0200.01516.43
7.3.250.0200.00716.56
7.3.240.0120.01516.41
7.3.230.0070.02616.39
7.3.210.0120.01216.34
7.3.200.0120.01619.39
7.3.190.0230.00316.54
7.3.180.0070.02216.63
7.3.170.0230.01016.27
7.3.160.0120.01216.52
7.3.10.0070.01716.17
7.3.00.0220.00016.71
7.2.330.0180.00916.51
7.2.320.0190.00316.59
7.2.310.0120.01816.52
7.2.300.0190.00916.66
7.2.290.0180.01016.48
7.2.130.0110.00616.82
7.2.120.0090.00316.65
7.2.110.0110.00716.90
7.2.100.0200.01016.56
7.2.90.0060.01316.95
7.2.80.0100.01616.84
7.2.70.0150.00816.77
7.2.60.0120.00816.56
7.2.50.0130.00716.79
7.2.40.0130.01016.78
7.2.30.0230.00616.79
7.2.20.0130.01016.67
7.2.10.0130.01016.70
7.2.00.0110.00518.14
7.1.250.0070.01015.65
7.1.200.0130.00315.53
7.1.100.0030.01018.00
7.1.70.0000.01117.21
7.1.60.0030.01719.46
7.1.50.0060.01316.97
7.1.00.0030.08022.30
7.0.200.0080.00016.57
7.0.140.0030.07022.04
7.0.60.0030.09720.04
7.0.50.0070.07017.99
7.0.40.0100.08020.15
7.0.30.0170.04020.08
7.0.20.0330.07320.05
7.0.10.0100.08020.23
7.0.00.0070.04720.22
5.6.280.0200.06020.91
5.6.210.0070.09020.53
5.6.200.0100.08318.29
5.6.190.0030.04320.54
5.6.180.0300.07320.55
5.6.170.0170.06720.51
5.6.160.0130.08020.54
5.6.150.0170.07318.20
5.6.140.0100.05718.25
5.6.130.0100.08718.23
5.6.120.0030.04720.99
5.6.110.0070.07720.98
5.6.100.0070.05021.06
5.6.90.0130.07721.13
5.6.80.0000.07020.41
5.5.350.0330.07720.47
5.5.340.0030.04018.09
5.5.330.0030.06320.41
5.5.320.0530.04720.36
5.5.310.0330.06720.35
5.5.300.0170.07718.10
5.5.290.0100.08017.98
5.5.280.0230.07020.65
5.5.270.0030.09020.87
5.5.260.0100.09020.77
5.5.250.0100.03720.79
5.5.240.0070.04020.16
5.4.450.0530.06019.34
5.4.440.0900.06319.19
5.4.430.0870.05719.35
5.4.420.1000.04319.47
5.4.410.0270.05719.35
5.4.400.1270.07019.02
5.4.390.0170.06318.50
5.4.380.0230.06018.75
5.4.370.0200.05018.76
5.4.360.0230.05318.70
5.4.350.0300.05018.50
5.4.340.0270.05018.62
5.4.320.0300.05018.54
5.4.310.0370.05718.75
5.4.300.0100.06318.76
5.4.290.0300.05318.70
5.4.280.0270.07318.47
5.4.270.0170.06018.77
5.4.260.0300.04718.56
5.4.250.0270.05718.54
5.4.240.0230.05718.51
5.4.230.0400.06318.51
5.4.220.0270.06318.77
5.4.210.0300.07018.46
5.4.200.0230.07316.79
5.4.190.0330.04718.54
5.4.180.0370.04318.73
5.4.170.0270.05718.77
5.4.160.0230.05318.82
5.4.150.0200.05718.75
5.4.140.0230.05316.30
5.4.130.0230.05716.30
5.4.120.0270.05316.27
5.4.110.0200.05716.21
5.4.100.0300.04316.29
5.4.90.0270.05716.34
5.4.80.0230.05716.29
5.4.70.0170.05716.25
5.4.60.0300.04716.43
5.4.50.0130.06316.31
5.4.40.0200.06016.32
5.4.30.0300.04716.26
5.4.20.0270.05016.23
5.4.10.0500.04716.27
5.4.00.0130.06715.70
5.3.290.0170.07014.67
5.3.280.0100.06314.79
5.3.270.0270.06314.71
5.3.260.0270.07314.66
5.3.250.0300.05314.71
5.3.240.0170.07014.82
5.3.230.0330.06314.66
5.3.220.0200.06314.78
5.3.210.0270.08014.79
5.3.200.0230.07714.70
5.3.190.0270.06314.61
5.3.180.0270.06714.63
5.3.170.0230.05714.57
5.3.160.0230.06014.74
5.3.150.0270.05714.70
5.3.140.0230.06014.62
5.3.130.0230.08714.70
5.3.120.0300.06314.59
5.3.110.0230.06714.59
5.3.100.0400.06014.25
5.3.90.0300.05014.00
5.3.80.0370.05714.04
5.3.70.0370.04014.05
5.3.60.0270.07314.05
5.3.50.0130.08013.98
5.3.40.0230.06314.06
5.3.30.0270.05314.08
5.3.20.0330.05313.83
5.3.10.0300.05713.71
5.3.00.0100.06713.86
5.2.170.0130.05711.13
5.2.160.0230.03711.20
5.2.150.0130.04711.17
5.2.140.0200.05011.18
5.2.130.0170.05011.17
5.2.120.0300.04311.18
5.2.110.0130.04711.18
5.2.100.0170.06311.16
5.2.90.0330.05711.17
5.2.80.0100.05311.21
5.2.70.0130.05011.13
5.2.60.0200.04711.11
5.2.50.0300.04011.01
5.2.40.0100.04711.12
5.2.30.0070.06010.98
5.2.20.0130.04711.07
5.2.10.0300.03310.91
5.2.00.0130.05010.75
5.1.60.0070.04310.04
5.1.50.0200.03710.03
5.1.40.0100.0439.98
5.1.30.0170.04010.34
5.1.20.0070.04310.57
5.1.10.0100.05010.16
5.1.00.0070.05010.07
5.0.50.0200.0278.58
5.0.40.0130.0278.41
5.0.30.0130.0478.30
5.0.20.0230.0278.26
5.0.10.0100.0308.20
5.0.00.0070.0578.36
4.4.90.0170.0235.91
4.4.80.0130.0235.89
4.4.70.0070.0305.89
4.4.60.0070.0335.88
4.4.50.0170.0235.91
4.4.40.0100.0375.93
4.4.30.0100.0275.93
4.4.20.0170.0205.98
4.4.10.0170.0205.95
4.4.00.0170.0335.98
4.3.110.0100.0275.83
4.3.100.0100.0235.82
4.3.90.0100.0235.89
4.3.80.0100.0305.82
4.3.70.0000.0305.88
4.3.60.0070.0235.83
4.3.50.0070.0275.84
4.3.40.0070.0405.75
4.3.30.0130.0204.60
4.3.20.0000.0404.56
4.3.10.0170.0234.64
4.3.00.0130.0279.38

preferences:
49.57 ms | 401 KiB | 5 Q