PHP



  2. Question:What are Property Scopes? 
    Answer
    Coming soon...






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  3. Question:How we declare static class member? 
    Answer
    Coming soon...






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  4. Question:
    Briefly describe the following methods:
    1. class_exists()
    2. is_a()
    3. is_subclass_of()
    4. method_exists()
    5. interface_exists()
    6. get_parent_class()
     
    Answer
    Coming soon...






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  5. Question:What are the PHP’s authentication variables? 
    Answer
    PHP uses two predefined variables to authenticate a user and those are $_SERVER['PHP_AUTH_USER'] and $_SERVER['PHP_AUTH_PW']. These variables store the username and password values, respectively.






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  6. Question:What are the two regular expression syntaxes? 
    Answer
    There are two regular expression syntaxes in php. These are 1. POSIX syntax and 2. Perl syntax.






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