fbsql_errno()
(PHP 4 >= 4.0.6, PHP 5, PHP 7)
Returns the error number from previous operation
说明
fbsql_errno([resource $link_identifier]): int
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.
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 number from the last fbsql function, or0(zero)if no error occurred.
范例
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 />";
?>
参见
fbsql_error()Returns the error message from previous operationfbsql_warnings()Enable or disable FrontBase warnings