Write a program to display a table of any given number?

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What is the difference between $name and $$name?

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What the limitation of header() function in php?

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How does csrf attack work?

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Can you give example for trait in php?

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How to find datatype of variable in php?

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What is csrf verification?

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class Database { public static $_instance; public static function getInstance() { if(!isset(self::$_instance)) self::$_instance = new Database(DB_SERVER, DB_USER, DB_PASS, DB_NAME); print_r(self::$_instance); return self::$_instance; } } can any one explain "self::$_instance = new Database(DB_SERVER, DB_USER, DB_PASS, DB_NAME);" this line

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In php how can you jump in to and out of "php mode"?

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Tell me what does the array operator '===' means?

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Is php better than java?

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Explain me what is the meaning of a persistent cookie?

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