There are four different types of variables they are local, instance, global, and class. Variables can be used in the program without any declaration and they can contain data of any type. A local variable contains lower case characters followed by name characters. Instance variable starts with a @ sign followed by name characters.
Explain what are the differences between mysql_fetch_array(), mysql_fetch_object(), mysql_fetch_row()?
Can the value of a constant change during the script's execution?
Explain What is PHP?
What are some magic methods in PHP, how might you use them?
What is MVC in PHP context?
How to find the position of the first occurrence of a substring in a string?
How do you define a constant?
What is MIME?
What are the characteristics of PHP variables?
The value of the variable input is a string 1,2,3,4,5,6,7. How would you get the sum of the integers contained inside input?
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