fbsql_error
(PHP 4 >= 4.0.6, PHP 5, PHP 7)
fbsql_error — Returns the error message from previous operation
说明
$link_identifier
] )Returns the error message from previous FrontBase operation.
Errors coming back from the fbsql database backend don't issue warnings. Instead, use fbsql_error() to retrieve the error text. 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.
参数
-
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。
返回值
Returns the error text from the last fbsql function, or '' (the empty string) if no error occurred.
范例
Example #1 fbsql_error() 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 />" ;
?> 参见
- fbsql_errno() - Returns the error number from previous operation
- fbsql_warnings() - Enable or disable FrontBase warnings