Online PHP editor | output for CreL0

@ 2013-12-11T11:55:51Z

<?php
$start_date    = new DateTime( '2013-01-01 00:00:00' );
$end_date      = new DateTime( '2013-12-31 23:59:59' );
$end_date_ts   = $end_date->getTimestamp();
$now           = new DateTime( '2013-12-10 15:45:34' );
$now_ts        = $now->getTimestamp();
$interval      = new DateInterval( 'P1W' );
$periods        = new DatePeriod( $start_date, $interval, $end_date );

/** @var \DateTime $period */
foreach($periods as $period){
    $periodEnd = clone $period;
    $periodEnd->add($interval);
    if($period < $now && $now < $periodEnd){
        $result = iterator_to_array(new \DatePeriod($period, $interval, $periodEnd->add($interval)));
        $int_start_date = $result[0];
        $int_end_date = $result[1];
    }
}

var_dump( $int_start_date->format( 'Y-m-d H:i:s' ) );
var_dump( $int_end_date->format( 'Y-m-d H:i:s' ) );

Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: string(19) "2013-12-10 00:00:00" string(19) "2013-12-17 00:00:00"
Output for 5.2.0 - 5.2.17: Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/CreL0 on line 15 Fatal error: Call to undefined method DateTime::getTimestamp() in /in/CreL0 on line 4
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6: Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/CreL0 on line 15 Fatal error: Class 'DateTime' not found in /in/CreL0 on line 2
Process exited with code 255.
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected T_VARIABLE in /in/CreL0 on line 12
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1: Parse error: parse error, unexpected T_VARIABLE in /in/CreL0 on line 12
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error in /in/CreL0 on line 12
Process exited with code 255.

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