返回上次连接错误的错误描述(如果有):
<?php
$mysqli = new mysqli("localhost","my_user","my_password","my_db");
// Check connection
if ($mysqli -> connect_errno) {
echo "Failed to connect to MySQL: " . $mysqli -> connect_error;
exit();
}
?>
查看底部的程序样式示例。
connect_error / mysqli_connect_error() 函数返回最后一个连接错误的错误描述(如果有)。
$mysqli -> connect_error
mysqli_connect_error()
;
返回值: | 返回描述错误的字符串。如果没有发生错误则为 NULL |
---|---|
PHP 版本: | 5+ |
返回上次连接错误的错误描述(如果有):
<?php
$con = mysqli_connect("localhost","my_user","my_password","my_db");
// Check connection
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
exit();
}
?>
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