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im trying to check whether fields on my html page are empty. If they are i want a message to appear saying "youve not filled in all fields...etc." if they have filled it in then carry out the php. the code i have is:
mysql_function(): WARNING: This extension is deprecated as of PHP 5.5.0, and will be removed in the future. Instead, the MySQLi or PDO_MySQLextension should be used. See also MySQL: choosing an API guide and related FAQ for more information.