What is the difference between null and empty?
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List out some tools through which we can draw E-R diagrams for mysql?
What is use of htmlspecialchars php?
Shopping cart online validation i.e. how can we configure Paypal, etc.?
What does a delimiter do in mysql?
How can you submit a form without a submit button?
What is helper function?
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Tell me what are the __construct() and __destruct() methods in a php class?
What does $_server mean?
How to download files from an external server with code in php?
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How many open modes available when a file open in PHP?