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Ce document utilise Manuel du site Web PHP chinois Libérer
(PHP 4 >= 4.0.6, PHP 5, PHP 7)
fbsql_errno — Returns the error number from previous operation
$link_identifier
] )Returns the numerical value of the error message from previous FrontBase operation.
Errors coming back from the fbsql database backend don't 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.
link_identifier
由 fbsql_connect() 或 fbsql_pconnect() 返回的 FrontBase 链接标识符.
如可选并未指定,函数会尝试查找一个到 FrontBase 服务器的开放链接,且如没有找到这样的链接,会尝试通过不带参数调用 fbsql_connect() 来创建一个。
Returns the error number from the last fbsql function, or 0 (zero) if no error occurred.
Example #1 fbsql_errno() Example
<?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 />" ;
?>