What are the encryption functions in php?

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How do you put a space in html?

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Is php outdated 2019?

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Tell me how to create a session? How to set a value in session? How to remove data from a session?

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how can we check mail function with '127.0.0.1' (before submitting a site?

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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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What is mysqli_real_escape_string?

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What is the difference between include and include_once ? Which is one is good in terms of performance ?

2 Answers   Dest,

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Is it possible to get the screen resolution and like with php?

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What is mean tnq

0 Answers   TNQ,

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What good is polymorphism?

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What is default session time and path in PHP. How to change it?

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