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PHP - Manual: fbsql_error

2024-12-23

fbsql_error

(PHP 4 >= 4.0.6, PHP 5, PHP 7)

fbsql_errorReturns the error message from previous operation

说明

fbsql_error ([ resource $link_identifier ] ) : string

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

fbsql_connect()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

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官方地址:https://www.php.net/manual/en/function.fbsql-error.php

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