Using $_POST with Submit button

External Since: May 15, 2004 Posts: 2

Hello,

I wondered if anyone could further advice? In my script I was trying
allow the user to enter a userid and password, and when the users
clicks the login button. Pass these values passed to a method
login_user, and finally display there record.

I was hoping to display the record on this page. I would appreicate
some advice if my scrips looks corrects? I unsure about the line
if(isset($_POST['login'])){?

Thank you

<?php
function login_form(){
?>
<html>
<head>
<title></title>
</head>

<body>

<div align="center">
<form method="post">
<table border="1">
<tr>
<th align="right">E-mail</th>
<td nowrap>
<input name="userid" size="25">
</td>
</tr>
<tr>
<th align="right">Password</th>
<td nowrap>
<input name="password" size="25">
</td>
</tr>
<tr>
<td align="center">
<input type="submit" name="login" value="Login">
</td>
</tr>
</table>
</form>
<div>
<?php
}

login_form();

if(isset($_POST['login'])){
$userid = $_POST["userid"];
$password = $_POST["password"];
$userRecord = login_user($userid, $password);
displayRecord($userRecord);

echo "</body>";
echo "</html>";
}
?>

</body>
</html>

Joined: Jan 06, 2004 Posts: 660

Antoni wrote:

Hello,

I wondered if anyone could further advice? In my script I was trying
allow the user to enter a userid and password, and when the users
clicks the login button. Pass these values passed to a method
login_user, and finally display there record.

I was hoping to display the record on this page. I would appreicate
some advice if my scrips looks corrects? I unsure about the line
if(isset($_POST['login'])){?

Thank you

<?php
function login_form(){
?>
<html>
<head>
<title></title>
</head>

<body>

<div align="center">
<form method="post">
<table border="1">
<tr>
<th align="right">E-mail</th>
<td nowrap>
<input name="userid" size="25">
</td>
</tr>
<tr>
<th align="right">Password</th>
<td nowrap>
<input name="password" size="25">
</td>
</tr>
<tr>
<td align="center">
<input type="submit" name="login" value="Login">
</td>
</tr>
</table>
</form>
<div>
<?php
}

login_form();

if(isset($_POST['login'])){
$userid = $_POST["userid"];
$password = $_POST["password"];
$userRecord = login_user($userid, $password);
displayRecord($userRecord);

echo "</body>";
echo "</html>";
}
?>

</body>
</html>

I did not go thru the code fully, so I leave that to others to comment on.

(isset($_POST['login']))... refers to detecting that the form has been submitted. The value of $_POST['login'] would be set when the submit button has been pressed. As your form and your form-processing logic are both on the same script, this is the way of detecting when $_POST values are present for processing