mysql_error
(PHP 3, PHP 4 )
mysql_error -- Returns the text of the error message from
previous MySQL operation
Description
string mysql_error ( [resource link_identifier])
Returns the error text from the last MySQL function, or
'' (the empty string) if no error occurred. If no link is
explicitly passed to the function, the last successful open
link will be used to retrieve the error message from the
MySQL server.
Errors coming back from the MySQL database backend no longer
issue warnings. Instead, use mysql_error() to retrieve the
error text. Note that this function only returns the error
text 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_error() example
<?php
$link = mysql_connect("localhost", "mysql_user",
"mysql_password");
mysql_select_db("nonexistentdb", $link);
echo mysql_errno($link) . ": " . mysql_error($link).
"\n";
mysql_select_db("kossu", $link);
mysql_query("SELECT * FROM nonexistenttable",
$link);
echo mysql_errno($link) . ": " . mysql_error($link)
. "\n";
?>
The above example would produce the following output:
1049: Unknown database 'nonexistentdb'
1146: Table 'kossu.nonexistenttable' doesn't exist
See also mysql_errno().
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