PHP linked database

PHP links MySql database
mysql_connect('server','username','password')
mysql_connect() returns the identification of successful database connection.
mysql_slect_db('database name','link')
mysql_slect_db() selects the library used,
mysql_query("sql statement") sql statement can add, delete, modify and query
mysql_query() method of executing sql statement.
mysql_fetch_array ('results from the incoming sql query') returns key/value pairs and index/values ​​
mysql_fetch_assoc ('results from the incoming sql query') only returns key/value pairs
mysql_num_rows() returns the sql query results Head Office

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