将数据插入表(mysqli insert)

Question

我一直在看这段代码一段时间,我看不出问题出在哪里.我一直在阅读整个StackOverflow,但仍无法看到我的错误.

<?php

mysqli_connect("localhost","root","","web_table");
mysql_select_db("web_table") or die(mysql_error());

if (mysqli_connect_errno()) {

  echo "Failed to connect to MySQL: " . mysqli_connect_error();

}
echo "<p> Connection Successful!"

mysqli_query('INSERT INTO web_formitem (ID, formID, caption, key, sortorder, type, enabled, mandatory, data) VALUES (105, 7, Tip izdelka (6), producttype_6, 42, 5, 1, 0, 0)');


echo "<p>Insert successfull";

?>

错误在第13行的某处,那就是mysqli_query('insert....我试图用http://www.w3schools.com/php/php_mysql_insert.asp来帮助自己,但这对我帮助不大.

Answer 1

警告:永远不要将w3schools用于学习目的.他们的教程中有很多错误.

根据mysqli_query文档,第一个参数必须是连接字符串:

$link = mysqli_connect("localhost","root","","web_table");

mysqli_query($link,"INSERT INTO web_formitem (`ID`, `formID`, `caption`, `key`, `sortorder`, `type`, `enabled`, `mandatory`, `data`)
VALUES (105, 7, 'Tip izdelka (6)', 'producttype_6', 42, 5, 1, 0, 0)") 
or die(mysqli_error($link));

注意:为插入查询中的列名添加反引号`,因为某些列名是保留字.