mysqli::$connect_error

mysqli_connect_error

(PHP 5, PHP 7, PHP 8)

mysqli::$connect_error -- mysqli_connect_errorReturns a description of the last connection error

说明

面向对象风格

过程化风格

mysqli_connect_error(): ?string

Returns the error message from the last connection attempt.

参数

此函数没有参数。

返回值

A string that describes the error. null is returned if no error occurred.

范例

示例 #1 $mysqli->connect_error example

面向对象风格

<?php

mysqli_report
(MYSQLI_REPORT_OFF);
/* @ is used to suppress warnings */
$mysqli = @new mysqli('localhost''fake_user''wrong_password''does_not_exist');
if (
$mysqli->connect_error) {
    
/* Use your preferred error logging method here */
    
error_log('Connection error: ' $mysqli->connect_error);
}

过程化风格

<?php

mysqli_report
(MYSQLI_REPORT_OFF);
/* @ is used to suppress warnings */
$link = @mysqli_connect('localhost''fake_user''wrong_password''does_not_exist');
if (!
$link) {
    
/* Use your preferred error logging method here */
    
error_log('Connection error: ' mysqli_connect_error());
}

参见

add a noteadd a note

User Contributed Notes

There are no user contributed notes for this page.

备份地址:http://www.lvesu.com/blog/php/mysqli.connect-error.php