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We would like to see if TODAY is the same day that post has been posted.
To get TODAY:
date('Y-m-d')
This will return something like '2010-04-09'. The problem is that we have our post date as a string, for example:
$postingdate='2010-04-09 12:34:22'
So is this the same date?
Option 1:
if (date('Y-m-d')!=date('Y-m-d',strtotime($postingdate))) { echo 'Not the same day'; };
This converts the string to a timestamp, and then back to a Y-m-d format.
Option 2:
if (strpos($postingdate,date('Y-m-d'))===FALSE) { echo 'Not the same day'; };
Does try to find the date ('2010-04-09') in the string '2010-04-09 12:34:22'.
If it does: same day!
The latter seems more efficient, as the strtotime function might need more "time" to determine the string format that it's trying to convert to a timestamp, to then convert it again to a string.