When sessions ends?
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How to turn on the session support?
What is $$ in php?
What is in a cookie?
What is class extend in php?
Describe the differences between the object models in PHP 4 and PHP 5.
How can we get the properties (size, type, width, height) of an image using PHP image functions?
What are the different tables(engine) present in mysql, which one is default?
Where can I find php ini file?
What beforeFilter() is used?
When viewing an html page in a browser, the browser often keeps this page in its cache. What can be possible advantages/disadvantages of page caching? How can you prevent caching of a certain page (please give several alternate solutions)?
What is the delimiter default in PHP?
Tell me how is the ternary conditional operator used in php?