使用html表单将数据插入表中

Question

I have a html form on the main page to insert data into a mysql table.

<form action ="http://127.0.0.1/insertdata.php" name="salesRecords" method="post">
Client name = <input type="text" name="client" value="" /> </br>
Date of sale = <input type="text" name="date" value="" /> (YYYY-MM-DD) </br>
Value of sale = <input type="text" name="amount" value="" /> (DDDD.DD) </br>
<input type="submit" value="Submit" onclick="return validateForm();"/>

I use the following code in receiveform.php file to display the the table data and it works correctly.

<?php

//create connection
$con = mysql_connect("localhost", "admin", "password")
//query database and write out results
$sql = 'select * from sales';
$result = mysql_query($sql, $con);
echo "<table>";
while($row = mysql_fetch_array($result))
{
    echo "<tr><td>"
    echo $row['client'];
    echo "</td><td>";
    echo $row['date'];
    echo "</td><td>";
    echo $row['amount'];
    echo "</td></tr>";
}
echo "</table>";
?>

I use the following code in an insertdata.php file. However, it doesn't work properly. Can anyone help?

/Form values
$_POST['client'];
$_POST['date'];
$_POST['amount'];

//insert data into table
$insertData = 'insert into sales (client, date, amount) values
    ('$_POST[client]', '$_POST[date]', '$_POST[amount]')';

$result = mysql_query($insertData, $con);
if($result)
{
    echo 'Data inserted successfully';
}else{
    echo 'Data insertion failed: ' .mysql_error();
}
?>

Answer 1

zan, modify your query like this

$insertData = 'insert into sales (client, date, amount) values ("'.$_POST['client'].'", "'.$_POST['date'].'", "'.$_POST['amount'].'")';