What is design pattern? Explain all including singleton pattern?
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How to execute an sql query?
What is the difference between array_map () and array_shift ()?
Explain what does the function get_magic_quotes_gpc() means?
How is a constant defined in a PHP script?
Tell me can the value of a constant change during the script's execution?
Which functions are used to remove whitespaces from the string?
What is strlen php?
What the limitation of header() function in php?
How to enable cURL in PHP?
PHP serverside scripting language or client side scripting language>
What is inheritance in php progaming?
Why is php so popular?