我在提交表单时看到此错误错误：查询为空

Question

<?php

$con = mysql_connect("localhost","root","");
if (!$con)
{
  die('Could not connect: ' . mysql_error());
}

mysql_select_db("lobbymen_hireus", $con);

$query = mysql_query("INSERT INTO hireus (name, cname, email, telephone)
                      VALUES (ashfaq, muhm, ashfaq@, 1234566)");

if (!mysql_query($query,$con))
{
  die('Error: ' . mysql_error());
}
echo "1 record added";

mysql_close($con);

?>

Answer 1

您需要正确格式化字符串以进行插入：

$query = mysql_query("INSERT INTO hireus (name, cname, email, telephone)
VALUES ('ashfaq', 'muhm', 'ashfaq@', '1234566')");

但这只是这段代码的冰山一角......

Answer 2

嗯，首先，您需要在值周围加上引号，因为它们是字符串。您还在查询查询，因此您需要将$ query更改为：

$query = "INSERT INTO hireus (name, cname, email, telephone)
    VALUES ('ashfaq', 'muhm', 'ashfaq@', '1234566')";

Answer 3

您的查询有问题，应该是这样的：

$query = mysql_query("INSERT INTO hireus (name, cname, email, telephone) VALUES ('ashfaq', 'muhm', 'ashfaq@', '1234566')");

Answer 4

您正在执行两次查询（第二次查询结果是查询，因此返回false），并且您忘记了值周围的引号。它应该是

$query = "INSERT INTO hireus (name, cname, email, telephone) VALUES ('ashfaq', 'muhm', 'ashfaq@', '1234566')";

if (!mysql_query($query,$con))
{
  die('Error: ' . mysql_error());
}
echo "1 record added";