3v4l.org

run code in 300+ PHP versions simultaneously
<?php $chars = ["a", "b", "c"]; $result = array_merge(...array_fill(0, 3, $chars)); var_export($result);

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)
8.5.10.0140.00516.57
8.5.00.0110.00919.39
8.4.150.0020.00014.05
8.4.140.0140.00817.64
8.4.130.0070.00417.45
8.4.120.0110.01022.34
8.4.110.0140.00622.50
8.4.100.0120.00917.50
8.4.90.0140.00718.40
8.4.80.0120.00820.27
8.4.70.0080.00217.85
8.4.60.0110.00918.96
8.4.50.0040.00418.33
8.4.40.0100.01018.48
8.4.30.0150.00318.89
8.4.20.0080.01219.54
8.4.10.0080.00019.17
8.3.280.0110.01018.35
8.3.270.0120.00716.44
8.3.260.0060.00316.66
8.3.250.0120.00718.60
8.3.240.0130.00516.95
8.3.230.0130.00616.69
8.3.220.0040.00418.73
8.3.210.0120.00716.59
8.3.200.0050.00416.59
8.3.190.0110.00917.01
8.3.180.0090.00816.99
8.3.170.0060.01222.65
8.3.160.0130.00317.08
8.3.150.0070.01117.23
8.3.140.0030.00617.15
8.3.130.0000.00816.39
8.3.120.0030.00620.66
8.3.110.0110.00420.94
8.3.100.0050.00324.06
8.3.90.0140.00426.77
8.3.80.0050.00518.43
8.3.70.0140.00716.38
8.3.60.0490.00025.92
8.3.50.0040.01525.92
8.3.40.0230.00825.92
8.3.30.0270.01025.92
8.3.20.0320.00425.92
8.3.10.0290.00525.92
8.3.00.0210.00925.92
8.2.290.0070.00120.67
8.2.280.0100.00618.42
8.2.270.0130.00618.88
8.2.260.0140.00318.05
8.2.250.0080.00016.56
8.2.240.0030.01216.99
8.2.230.0060.00322.58
8.2.220.0070.01037.54
8.2.210.0050.00226.77
8.2.200.0030.00618.16
8.2.190.0110.00416.58
8.2.180.0250.00625.92
8.2.170.0300.01125.92
8.2.160.0360.00825.92
8.2.150.0350.00725.92
8.2.140.0350.00625.92
8.2.130.0280.01425.92
8.2.120.0340.00625.92
8.2.110.0350.00925.92
8.2.100.0400.00325.92
8.2.90.0380.00725.92
8.2.80.0290.00425.92
8.2.70.0260.00825.92
8.2.60.0360.00625.92
8.2.50.0370.00325.92
8.2.40.0270.01025.92
8.2.30.0260.01125.92
8.2.20.0310.01025.92
8.2.10.0270.01025.92
8.2.00.0340.00725.92
8.1.330.0080.01019.98
8.1.320.0120.00715.97
8.1.310.0040.00416.73
8.1.300.0040.00418.22
8.1.290.0030.00630.84
8.1.280.0410.00725.92
8.1.270.0370.00525.92
8.1.260.0230.02625.92
8.1.250.0370.00725.92
8.1.240.0270.01025.92
8.1.230.0290.01125.92
8.1.220.0330.00925.92
8.1.210.0380.01125.92
8.1.200.0250.01525.92
8.1.190.0350.00525.92
8.1.180.0260.01025.92
8.1.170.0280.00425.92
8.1.160.0280.00925.92
8.1.150.0270.00325.92
8.1.140.0230.00725.92
8.1.130.0220.00825.92
8.1.120.0370.00525.92
8.1.110.0470.01025.92
8.1.100.0350.00925.92
8.1.90.0320.01225.92
8.1.80.0400.00425.92
8.1.70.0240.01225.92
8.1.60.0330.01225.92
8.1.50.0370.01225.92
8.1.40.0360.01125.92
8.1.30.0450.00325.92
8.1.20.0330.01725.92
8.1.10.0440.00725.92
8.1.00.0520.00625.92

preferences:
37.87 ms | 403 KiB | 5 Q