How to combine simple math with strings with php in MySQL query
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I want to add a filter to my MySQL query based on users birthday.

Providing:

    $cur_year = 2012
    $cur_month = 07
    $cur_day = 18

How do I do the difference `$cur_year - $minAge` and then display `-07-19` (month and day)

I'm trying this:

    `Birthday` < $cur_year - $minAge'-$cur_month-$cur_day'