无涯教程-PHP - mysqli_error函数

mysqli_error - 语法

mysqli_error(connection);

它返回上次连接的错误列表

mysqli_error - 返回值

它返回一个包含错误描述的字符串。

mysqli_error - 示例

<?php
   $connection_mysql=mysqli_connect("host_name","user","password","db");
if (mysqli_connect_errno($connection_mysql)){
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
if (!mysqli_query(connection_mysql</span><span class="pun">,</span><span class="str">"INSERT INTO Persons (FirstName) VALUES (Jack)"</span><span class="pun">)){</span><span class="pln">
      echo</span><span class="pun">(</span><span class="str">"Error description: "</span><span class="pln"> </span><span class="pun">.</span><span class="pln"> mysqli_error</span><span class="pun">(</span><span class="pln">connection_mysql));
}
mysqli_close($connection_mysql);
?>

参考链接

www.learnfk.com/php/php-fun…