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    Question

    Which of the following statement is INCORRECT related to

    mysql_list_tables() function ?
    A We can display a list of tables present in a database by using mysql_list_tables() function Correct Answer Incorrect Answer
    B Connection has to be established before call of mysql_list_tables() function Correct Answer Incorrect Answer
    C Connection need not to be established before call of mysql_list_tables() function Correct Answer Incorrect Answer
    D The result pointer returned by this function is used by mysql_tablename() function to display the name of the tables. Correct Answer Incorrect Answer

    Solution

    Why this is correct: mysql_list_tables() (from the old PHP mysql_* extension) requires an active DB connection (link identifier) to query the server for table list. So saying a connection is not needed is incorrect. Why the others are correct: 1.┬а┬а┬а┬а┬а The function is intended to list tables in a database. 2.┬а┬а┬а┬а┬а You must establish a connection first (true). 3.┬а┬а┬а┬а┬а The result resource can be used with mysql_tablename() to extract table names (true). Note: the mysql_* PHP extension is deprecated and removed in newer PHP versions in favor of mysqli /PDO, but the behavior above is the historical behavior relevant to the question.

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