3v4l.org

run code in 300+ PHP versions simultaneously
<?php $items = ""; $items['1'] = ['test1' => 'test1']; $items['2'] = ['test2' => 'test2']; var_dump($items);

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)
8.3.60.0110.00416.50
8.3.50.0100.00316.22
8.3.40.0090.00618.84
8.3.30.0040.01118.66
8.3.20.0070.00021.80
8.3.10.0080.00021.90
8.3.00.0090.00017.66
8.2.180.0070.00716.50
8.2.170.0040.01122.96
8.2.160.0070.00720.45
8.2.150.0120.00324.18
8.2.140.0000.00724.66
8.2.130.0070.00021.07
8.2.120.0050.00226.35
8.2.110.0040.00421.18
8.2.100.0070.00417.84
8.2.90.0070.00019.28
8.2.80.0060.00317.97
8.2.70.0060.00317.50
8.2.60.0040.00417.93
8.2.50.0090.00018.10
8.2.40.0080.00022.14
8.2.30.0040.00420.91
8.2.20.0070.00017.91
8.2.10.0070.00018.02
8.2.00.0030.00518.12
8.1.280.0070.00725.92
8.1.270.0080.00022.10
8.1.260.0040.00426.35
8.1.250.0080.00028.09
8.1.240.0070.00322.62
8.1.230.0090.00320.88
8.1.220.0040.00417.74
8.1.210.0040.00418.77
8.1.200.0000.00817.35
8.1.190.0040.00417.36
8.1.180.0080.00018.10
8.1.170.0000.00818.59
8.1.160.0000.00818.93
8.1.150.0000.00718.79
8.1.140.0050.00317.51
8.1.130.0000.00718.96
8.1.120.0050.00317.34
8.1.110.0080.00017.36
8.1.100.0050.00217.46
8.1.90.0030.00417.50
8.1.80.0080.00017.48
8.1.70.0000.00717.36
8.1.60.0030.00617.55
8.1.50.0000.00717.50
8.1.40.0050.00317.41
8.1.30.0070.00017.56
8.1.20.0000.00717.55
8.1.10.0000.00817.46
8.1.00.0060.00317.33
8.0.300.0000.00718.77
8.0.290.0070.00016.88
8.0.280.0070.00018.34
8.0.270.0050.00317.30
8.0.260.0000.00616.88
8.0.250.0000.00716.99
8.0.240.0030.00516.85
8.0.230.0030.00617.01
8.0.220.0040.00416.84
8.0.210.0000.00716.96
8.0.200.0040.00417.01
8.0.190.0040.00416.98
8.0.180.0040.00716.97
8.0.170.0000.00716.82
8.0.160.0000.00716.87
8.0.150.0000.00716.86
8.0.140.0040.00416.94
8.0.130.0070.00013.29
8.0.120.0030.00516.94
8.0.110.0040.00416.76
8.0.100.0000.00716.90
8.0.90.0000.00716.92
8.0.80.0060.00916.98
8.0.70.0000.00716.77
8.0.60.0000.00716.77
8.0.50.0000.00716.86
8.0.30.0060.01117.06
8.0.20.0090.01117.40
8.0.10.0000.00817.06
8.0.00.0000.01716.76
7.4.330.0000.00515.55
7.4.320.0020.00516.62
7.4.300.0060.00016.44
7.4.290.0030.00816.60
7.4.280.0040.00416.50
7.4.270.0070.00016.51
7.4.260.0060.00013.27
7.4.250.0040.00416.51
7.4.240.0030.00316.52
7.4.230.0070.00016.63
7.4.220.0120.00616.56
7.4.210.0130.00616.60
7.4.200.0000.00716.34
7.4.160.0140.00216.40
7.4.150.0070.01117.40
7.4.140.0150.00717.86
7.4.130.0160.01016.31
7.4.120.0090.00916.52
7.4.110.0090.01316.34
7.4.100.0090.01416.51
7.4.90.0090.00916.53
7.4.80.0160.00719.39
7.4.70.0150.00616.50
7.4.60.0070.01416.52
7.4.50.0060.00916.33
7.4.40.0130.00316.33
7.4.30.0080.00816.66
7.4.00.0060.00914.98
7.3.330.0030.00313.21
7.3.320.0000.00613.22
7.3.310.0000.00716.32
7.3.300.0050.00316.32
7.3.290.0080.00716.37
7.3.280.0070.00916.31
7.3.270.0090.00917.40
7.3.260.0110.00716.43
7.3.250.0100.00916.39
7.3.240.0070.01316.38
7.3.230.0120.00616.34
7.3.210.0070.01016.43
7.3.200.0030.01316.36
7.3.190.0090.00616.21
7.3.180.0130.00716.29
7.3.170.0130.00716.60
7.3.160.0100.00616.37
7.2.330.0110.00616.48
7.2.320.0160.00316.34
7.2.310.0120.00616.60
7.2.300.0070.01816.62
7.2.290.0060.01116.42
7.2.60.0050.00516.91
7.2.00.0060.00919.11
7.1.200.0040.01115.66
7.1.100.0030.00718.18
7.1.70.0030.00917.24
7.1.60.0130.02335.12
7.1.50.0170.01034.85
7.1.40.0200.01034.36
7.1.30.0150.01234.34
7.1.20.0170.01034.27
7.1.10.0040.00816.76
7.1.00.0000.01716.81
7.0.200.0140.00416.46
7.0.190.0030.00916.50
7.0.180.0000.01316.36
7.0.170.0060.00916.12
7.0.160.0000.01316.00
7.0.150.0000.01316.14
7.0.140.0070.01016.43
7.0.130.0030.01416.65
7.0.120.0060.00716.65
7.0.110.0000.01916.38
7.0.100.0090.00916.37
7.0.90.0060.01216.23
7.0.80.0070.01216.25
7.0.70.0030.01116.23
7.0.60.0080.00416.16
7.0.50.0090.00316.25
7.0.40.0060.00916.56
7.0.30.0080.00516.58
7.0.20.0030.01316.38
7.0.10.0030.01216.34
7.0.00.0060.00916.38

preferences:
58.45 ms | 401 KiB | 5 Q