php - Subtract one DateTime from another and return days -

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i have 2 datetime objects. 1 represents 2 days , other represents 2 days , 6 months now.

i need able count number of days between these 2 dates display users dates can book on.

i have calculated 2 dates struggling finding way subtract them , return difference in days.

$first; // first datetime object  $second; // second datetime object   $diff = $first->diff($second);  echo $diff->days;

also take @ dateinterval class @ php.net


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