I have tried to write
<?php
print $xxx;
?>
this will not make any error in web-page. I want the zend server to tell me which variable not defined If I do it mistakenly in my code.
If I write
<?php
$fb = new Facebook()
?>
This will create fatal issue because their is nothing Facebook in my page. Do someone know how to solve it. I have changed the php.ini file found in zendserver folder. I don't have too much knowldge of how this thing work .please help I tried first Zend server.
I want to know another thing well, Is Zend server (I used community edition for now) have something for me specially used in development.

