I want select pages where now between date and end_date or now bigger than date and end_date is empty.
I have tried five variants:
$start = strtotime(date('Y-m-d') . " 00:00:00");
$results = $page->children("foo=(date<$start,date_end=''),bar=(date<$start,date_end>=$start),sort=-date,limit=12");
$start = strtotime(date('Y-m-d') . " 00:00:00");
$results = $page->children("date<$start,(date_end='',date_end>=$start),sort=-date,limit=12");
$start = strtotime(date('Y-m-d') . " 00:00:00");
$results = $page->children("date_end=''|date_end>=$start,date<$start,sort=-date,limit=12");
$start = strtotime(date('Y-m-d') . " 00:00:00");
$results = $page->children("!date_end|date_end>=$start,date<$start,sort=-date,limit=12");
$start = strtotime(date('Y-m-d') . " 00:00:00");
$results = $page->children("date_end>=$start|!date_end,date<$start,sort=-date,limit=12");
All this variants not worked for me and returned zero results.
The right way was:
$results = $page->children("date<today, (date_end>today), (date_end=''), sort=-date, limit=12");
You can use "today" in place of your timestamp.