cakephp - php e() and h() functions? -

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i , lately i'm seeing h() , e() functions in php. have googled them, short results don't give idea of are. got results exponential or math related functions. example:

<td><?php echo h($room['room']['message']) ?></td>

does have idea? or maybe not called functions? (i think read long ago, can remember real name)

added:

thanks, replies. using cakephp , found e() example:

<?php e($time->niceshort($question['question'] ['created'])) ?>

if escaping somehow strings think make sense, since see them right next "echo"

i still don't know ;(

it looks might cakephp. see e() , h().


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