some useful function php with mysql

  • mysql_connect(‘servers’,’admin’,’password’)
  • mysql_select_db(‘name of databases’)
  • mysql_query(‘sql querys’)
  • mysql_num_row(‘my sql query result’)
  • mysql_affected_row() and mysql_info() return information on the records that were affected by an insert,update,or delete query.
  • mysql_fetch_array()
  • mysql_fetch_assoc()
  • mysql_fetch_row()
  • mysql_fetch_lengths()
  • mysql_free_result() This ensures that the resultset doesn’t keep taking up space in your Web server’s memory.
  • You can only use the mysql_free_result() function with SQL statements that return results,such as SELECT queries,and only when the SQL statement successfully returned results. If you attempt to use the mysql_free_result() function with SQL statements that do not return results, such as the CREATE DATABASE and CREATE TABLE statements, or on an empty resultset, you will receive an error.

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