<?php
$start = new DateTime('2014-01-01');
$start->modify('first day of this month');
$end = new DateTime('2014-01-07');
$end->modify('first day of this month');
$interval = DateInterval::createFromDateString('1 week');
$period = new DatePeriod($start, $interval, $end);
foreach ($period as $dt) {
echo $dt->format("Y-m-d") . PHP_EOL;
}
Warning: DateTime::modify(): Failed to parse time string (first day of this month) at position 10 (o): The timezone could not be found in the database in /in/HVXWQ on line 3
Warning: DateTime::modify(): Failed to parse time string (first day of this month) at position 10 (o): The timezone could not be found in the database in /in/HVXWQ on line 5
Fatal error: Class 'DateInterval' not found in /in/HVXWQ on line 6
Process exited with code 255.
Output for 5.2.0 - 5.2.12
Fatal error: Class 'DateInterval' not found in /in/HVXWQ on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Fatal error: Class 'DateTime' not found in /in/HVXWQ on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Cannot instantiate non-existent class: datetime in /in/HVXWQ on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Cannot instantiate non-existent class: datetime in /in/HVXWQ on line 2