   #PHP Manual MySQL Functions mysql_drop_db mysql_error

   PHP Manual
   Prev  Next
   ______________________________________________________________________

                                  mysql_errno

   (PHP 3, PHP 4 )
   mysql_errno --  Returns the numerical value of the error message from
   previous MySQL operation

Description

   int mysql_errno ( [resource link_identifier])

   Returns the error number from the last MySQL function, or 0 (zero) if
   no error occurred.

   Errors coming back from the MySQL database backend no longer issue
   warnings. Instead, use mysql_errno() to retrieve the error code. Note
   that this function only returns the error code from the most recently
   executed MySQL function (not including mysql_error() and
   mysql_errno()), so if you want to use it, make sure you check the
   value before calling another MySQL function.

   Example 1. mysql_errno() example
   <?php
       mysql_connect("localhost", "mysql_user", "mysql_password");
       mysql_select_db("nonexistentdb");
       echo mysql_errno() . ": " . mysql_error(). "\n";
       mysql_select_db("kossu");
       mysql_query("SELECT * FROM nonexistenttable");
       echo mysql_errno() . ": " . mysql_error() . "\n";
   ?>

   The above example would produce the following output:
1049: Unknown database 'nonexistentdb'
1146: Table 'kossu.nonexistenttable' doesn't exist

     Note: If the optional argument is specified the given link is used
     to retrieve the error code. If not, the last opened link is used.

   See also mysql_error().
   ______________________________________________________________________

   Prev          Home        Next
   mysql_drop_db  Up  mysql_error
