In php, objects are they passed by value or by reference?
What is the most convenient hashing method to be used to hash passwords?
Explain what is the difference between for and foreach?
What is the use of explode() function?
What is the difference between the functions strstr() and stristr()?
Is it possible to remove the html tags from data?
Tell me how can you pass a variable by reference?
Tell me will a comparison of an integer 12 and a string "13" work in php?
What is the use of the function 'imagetypes()'?
Tell me what is the main difference between require() and require_once()?
How do I check if a given variable is empty?
Tell me what is the main difference between php 4 and php 5?
What should we do to be able to export data into an excel file?
Explain what is the static variable in function useful for?
Tell me what is the use of the function htmlentities?