3v4l.org

run code in 300+ PHP versions simultaneously
<?php function daysInWeek($weekNum) { $result = array(); $datetime = new DateTime(00:00:00); $datetime->setISODate((int)$datetime->format('o'), $weekNum, 1); $interval = new DateInterval('P1D'); $week = new DatePeriod($datetime, $interval, 6); foreach($week as $day){ $result[] = $day->format('D d m Y H:i:s'); } return $result; } var_dump(daysInWeek(24)); //and the difficult ones:- var_dump(daysInWeek(1)); var_dump(daysInWeek(53));

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)
5.4.250.0060.03812.38
5.4.240.0050.03712.39
5.4.230.0070.04312.38
5.4.220.0040.03812.38
5.4.210.0070.03412.38
5.4.200.0070.03612.38
5.4.190.0070.03512.37
5.4.180.0050.03812.38
5.4.170.0070.03812.38
5.4.160.0040.03812.38
5.4.150.0040.04212.37
5.4.140.0040.03812.06
5.4.130.0050.03612.04
5.4.120.0080.03312.01
5.4.110.0040.03812.00
5.4.100.0080.03212.01
5.4.90.0050.03812.00
5.4.80.0040.03812.00
5.4.70.0040.03612.00
5.4.60.0070.03412.00
5.4.50.0040.03612.00
5.4.40.0070.03211.99
5.4.30.0070.03511.99
5.4.20.0090.03411.98
5.4.10.0070.03511.99
5.4.00.0050.03911.48
5.3.280.0080.03612.71
5.3.270.0050.03812.72
5.3.260.0070.03812.72
5.3.250.0060.03612.72
5.3.240.0060.03812.72
5.3.230.0040.03912.71
5.3.220.0070.03612.68
5.3.210.0070.04012.68
5.3.200.0070.03412.68
5.3.190.0070.03812.68
5.3.180.0100.03512.67
5.3.170.0070.03612.67
5.3.160.0090.03612.67
5.3.150.0050.03912.67
5.3.140.0060.03712.66
5.3.130.0080.03612.66
5.3.120.0070.03912.66
5.3.110.0100.03812.66
5.3.100.0050.03812.12
5.3.90.0050.03812.09
5.3.80.0050.03712.08
5.3.70.0070.03612.07
5.3.60.0020.03912.06
5.3.50.0070.03512.01
5.3.40.0070.04112.01
5.3.30.0070.03411.96
5.3.20.0070.03511.75
5.3.10.0070.04311.70
5.3.00.0070.03911.69

preferences:
138.2 ms | 1394 KiB | 7 Q