php - session username match to -

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so when logged on user posts comment on webpage, automatically posts username next comment. using <? echo $rows['a_name']; ?>

i want create edit link appear on posts logged in user has created. in other words want match <? echo $rows['a_name']; ?> $_session=['username'] username , if match - display edit link -... if not, hide edit link.

any help, examples, ideas?

<?php if($rows['a_name']===$_session['username']) { ?>     <!-- edit link here --> <?php } ?>

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