(PHP 4 >= 4.0.6)
fbsql_errno -- Returns the numerical value of the error message from previous FrontBase operationReturns the error number from the last fbsql function, or 0 (zero) if no error occurred.
Errors coming back from the fbsql database backend dont issue warnings. Instead, use fbsql_errno() to retrieve the error code. Note that this function only returns the error code from the most recently executed fbsql function (not including fbsql_error() and fbsql_errno()), so if you want to use it, make sure you check the value before calling another fbsql function.
<?php
fbsql_connect("marliesle");
echo fbsql_errno().": ".fbsql_error()."<BR>";
fbsql_select_db("nonexistentdb");
echo fbsql_errno().": ".fbsql_error()."<BR>";
$conn = fbsql_query("SELECT * FROM nonexistenttable;");
echo fbsql_errno().": ".fbsql_error()."<BR>";
?>
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See also: fbsql_error() and fbsql_warnings().