3v4l.org

run code in 300+ PHP versions simultaneously
<?php $x = [ 'foo' => [], 'biz' => [ 'baz' => [] ] ]; var_dump(array_flatten($x));

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)
8.3.60.0120.00916.88
8.3.50.0100.01017.96
8.3.40.0040.01218.70
8.3.30.0140.00018.68
8.3.20.0050.00320.13
8.3.10.0080.00023.61
8.3.00.0040.00419.76
8.2.180.0120.00618.66
8.2.170.0070.00722.96
8.2.160.0110.00420.41
8.2.150.0040.00424.18
8.2.140.0030.00524.66
8.2.130.0030.00621.12
8.2.120.0040.00426.35
8.2.110.0080.00022.26
8.2.100.0000.01117.80
8.2.90.0050.00319.14
8.2.80.0000.00818.04
8.2.70.0030.00617.63
8.2.60.0050.00517.68
8.2.50.0080.00018.07
8.2.40.0050.00522.34
8.2.30.0000.00720.51
8.2.20.0040.00417.55
8.2.10.0050.00317.94
8.2.00.0070.00017.97
8.1.280.0040.01125.92
8.1.270.0030.00620.30
8.1.260.0040.00428.09
8.1.250.0070.00028.09
8.1.240.0100.00022.42
8.1.230.0130.00018.85
8.1.220.0000.00817.74
8.1.210.0030.00618.77
8.1.200.0000.01117.35
8.1.190.0000.00817.35
8.1.180.0040.00418.10
8.1.170.0090.00018.48
8.1.160.0050.00220.66
8.1.150.0020.00518.70
8.1.140.0050.00217.39
8.1.130.0070.00017.68
8.1.120.0070.00017.40
8.1.110.0000.00717.37
8.1.100.0000.00817.43
8.1.90.0070.00017.38
8.1.80.0000.00717.28
8.1.70.0070.00017.28
8.1.60.0030.00617.53
8.1.50.0000.00817.56
8.1.40.0030.00517.44
8.1.30.0080.00017.65
8.1.20.0030.00617.64
8.1.10.0050.00317.62
8.1.00.0060.00317.36
8.0.300.0040.00418.77
8.0.290.0040.00416.75
8.0.280.0030.00318.30
8.0.270.0000.00716.88
8.0.260.0040.00417.18
8.0.250.0000.00816.93
8.0.240.0080.00016.99
8.0.230.0030.00317.03
8.0.220.0030.00616.91
8.0.210.0050.00316.86
8.0.200.0040.00416.84
8.0.190.0040.00416.94
8.0.180.0040.00416.94
8.0.170.0050.00316.80
8.0.160.0040.00416.89
8.0.150.0000.00716.94
8.0.140.0070.00316.70
8.0.130.0060.00013.32
8.0.120.0000.00716.89
8.0.110.0040.00416.96
8.0.100.0000.00716.80
8.0.90.0040.00416.84
8.0.80.0000.01516.76
8.0.70.0050.00216.85
8.0.60.0030.00516.72
8.0.50.0040.00416.92
8.0.30.0150.00516.97
8.0.20.0090.00917.40
8.0.10.0070.00016.90
8.0.00.0080.01316.77
7.4.330.0000.00516.70
7.4.320.0060.00016.48
7.4.300.0030.00316.51
7.4.290.0060.00016.59
7.4.280.0030.00316.39
7.4.270.0060.00016.50
7.4.260.0000.00716.53
7.4.250.0040.00416.45
7.4.240.0030.00316.46
7.4.230.0000.00716.49
7.4.220.0070.01416.52
7.4.210.0060.01016.58
7.4.200.0030.00416.41
7.4.160.0070.00716.68
7.4.150.0070.01017.40
7.4.140.0120.00817.86
7.4.130.0120.02116.52
7.4.120.0100.00816.52
7.4.110.0140.00816.38
7.4.100.0070.01016.53
7.4.90.0130.01016.41
7.4.80.0130.00319.39
7.4.70.0000.01516.53
7.4.60.0150.00016.36
7.4.50.0030.00716.56
7.4.40.0080.00816.49
7.4.30.0080.00916.33
7.4.00.0060.01215.23
7.3.330.0030.00313.09
7.3.320.0050.00013.16
7.3.310.0030.00316.27
7.3.300.0030.00316.25
7.3.290.0070.00016.25
7.3.280.0120.00416.28
7.3.270.0170.00017.40
7.3.260.0090.00916.41
7.3.250.0090.01016.46
7.3.240.0100.00716.45
7.3.230.0030.02116.44
7.3.210.0070.01016.35
7.3.200.0130.00316.26
7.3.190.0140.00916.43
7.3.180.0030.01316.23
7.3.170.0090.01516.45
7.3.160.0070.01016.25
7.2.330.0060.01016.62
7.2.320.0030.02016.59
7.2.310.0030.01216.59
7.2.300.0090.00616.28
7.2.290.0130.01316.59
7.2.60.0060.00616.63
7.2.00.0030.01019.25
7.1.200.0040.00415.66
7.1.100.0070.00717.70
7.1.70.0090.00016.75
7.1.60.0030.01319.52
7.1.50.0030.02116.54
7.1.00.0070.07322.54
7.0.200.0050.00216.38
7.0.60.0170.08319.89
7.0.50.0100.04717.80
7.0.40.0030.08720.40
7.0.30.0370.07720.00
7.0.20.0270.08720.17
7.0.10.0130.06720.18
7.0.00.0070.04020.29
5.6.280.0000.04020.98
5.6.210.0100.07720.54
5.6.200.0070.03718.22
5.6.190.0100.04020.60
5.6.180.0230.03320.60
5.6.170.0230.05320.38
5.6.160.0200.07020.54
5.6.150.0030.08318.15
5.6.140.0070.03718.21
5.6.130.0100.06018.16
5.6.120.0130.07720.99
5.6.110.0030.08721.11
5.6.100.0170.05021.13
5.6.90.0300.06320.98
5.6.80.0030.08320.50
5.5.350.0270.08020.48
5.5.340.0070.08317.96
5.5.330.0070.07020.21
5.5.320.0100.04720.30
5.5.310.0130.04020.13
5.5.300.0030.08718.01
5.5.290.0000.07717.88
5.5.280.0070.04020.88
5.5.270.0070.08020.96
5.5.260.0100.08320.75
5.5.250.0100.07720.77
5.5.240.3870.04320.22

preferences:
51.17 ms | 401 KiB | 5 Q