What is the use of session and cookies in php?
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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)?
How to find out, how a user visited a particular page?
How many escape sequences are recognized in double-quoted strings?
Is nan in javascript?
What type of errors can be occurred in php?
What does $globals means?
What is prepared statement in php?
Questions on OOP concepts 1. What are the access specifiers available in php ? Explain 2. What is object cloning ? 3. What are the differences between interface and abstract class ? 4. What is overloading ? 5. What is overriding ? 6. How to prevent function overriding ? 7. What is the use of "final" keyword ? 8. What is static variable ? How will access a static variable ? What is static class ?
How to download a php script directly in your script page?
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What is escape data in php?
How variables are passed through arguments?
What is difference between get and post?