Process form with both Javascript and PHP

[mouac01@yahoo.com]

I'm new to PHP/Javascript. I have a simple form I want to validate the
fields with javascript and then run the PHP script. All the scripts
are in one page. I want PHP to control where the next page is. It
works fine without the javascript but when I add the javascript the
page doesn't do anything besides the validation. Thanks for your
help... Chong

----login.html--------------------------------
<?php
ob_start();
session_start() ;
require('dataso urce.html');
switch ($_POST['process'])
{
case 'Login':
$_SESSION['login'] = $_POST['login'];
$sql = "SELECT first_name, last_name, security_access , expire,
passwd_date FROM sy_user WHERE login = '".$_SESSION['login']."' AND
password = '".substr(sha1( $_POST['password']), 0, 10)."'";
$result = mysql_query($sq l);
if (mysql_num_rows ($result) < 1)
{
$msg = "Invalid login and password!";
}
else
{
$row = mysql_fetch_ass oc($result);
$_SESSION['first_name'] = $row['first_name'];
$_SESSION['last_name'] = $row['last_name'];
$_SESSION['security_acces s'] = $row['security_acces s'];
$passwd_date = $row['passwd_date'];
$expire = $row['expire'];

if ($passwd_date + $expire < date('Y-m-j'))
{
header('locatio n: expired.html');
}
else
{
header('locatio n: main.html');
}
}
}
?>
<SCRIPT LANGUAGE="JavaS cript">
function checkrequired(f orm)
{
for(f=0;f<form. length;f++)
{
if(form[f].name.substring (4,length)=="re qd")
{
if(form[f].value){continu e}
else
{
alert("Please fill "+form[f].name.substring (5));
form[f].focus();
return false;
}
}
}
return true;
}
</script>

<form method="post">
Login:<input name="reqd.logi n" type="text"><br >
Password:<input name="reqd.pass word" type="password" ><br>
<input type="submit" name="process" value="Login"
onClick="checkr equired(this)">
</form>
<?php echo($msg); ?>
-------------------------------------------------------

[d]

Re: Process form with both Javascript and PHP

<mouac01@yahoo. com> wrote in message
news:1139418022 .628334.121000@ z14g2000cwz.goo glegroups.com.. .[color=blue]
> I'm new to PHP/Javascript. I have a simple form I want to validate the
> fields with javascript and then run the PHP script. All the scripts
> are in one page. I want PHP to control where the next page is. It
> works fine without the javascript but when I add the javascript the
> page doesn't do anything besides the validation. Thanks for your
> help... Chong
>
> ----login.html--------------------------------
> <?php
> ob_start();
> session_start() ;
> require('dataso urce.html');
> switch ($_POST['process'])
> {
> case 'Login':
> $_SESSION['login'] = $_POST['login'];
> $sql = "SELECT first_name, last_name, security_access , expire,
> passwd_date FROM sy_user WHERE login = '".$_SESSION['login']."' AND
> password = '".substr(sha1( $_POST['password']), 0, 10)."'";
> $result = mysql_query($sq l);
> if (mysql_num_rows ($result) < 1)
> {
> $msg = "Invalid login and password!";
> }
> else
> {
> $row = mysql_fetch_ass oc($result);
> $_SESSION['first_name'] = $row['first_name'];
> $_SESSION['last_name'] = $row['last_name'];
> $_SESSION['security_acces s'] = $row['security_acces s'];
> $passwd_date = $row['passwd_date'];
> $expire = $row['expire'];
>
> if ($passwd_date + $expire < date('Y-m-j'))
> {
> header('locatio n: expired.html');
> }
> else
> {
> header('locatio n: main.html');
> }
> }
> }
> ?>
> <SCRIPT LANGUAGE="JavaS cript">
> function checkrequired(f orm)
> {
> for(f=0;f<form. length;f++)
> {
> if(form[f].name.substring (4,length)=="re qd")
> {
> if(form[f].value){continu e}
> else
> {
> alert("Please fill "+form[f].name.substring (5));
> form[f].focus();
> return false;
> }
> }
> }
> return true;
> }
> </script>
>
> <form method="post">
> Login:<input name="reqd.logi n" type="text"><br >
> Password:<input name="reqd.pass word" type="password" ><br>
> <input type="submit" name="process" value="Login"
> onClick="checkr equired(this)">
> </form>
> <?php echo($msg); ?>
> -------------------------------------------------------[/color]

If you moved the javascript call from the onclick() event of the submit
button to the form's onsubmit() event:

<form method="post" onsubmit="retur n checkrequired(t his);">

It'll work as you expect :) The problem at the moment is that your
javascript isn't submitting the form when it's completed. It's returning
"true" or "false", as a function being called by onsubmit() would be
expected to do, but it's being used in a different fashion. Try dropping it
in the <form> tag as I showed above and see if that makes a difference.

dave

[mouac01@yahoo.com]

Re: Process form with both Javascript and PHP

Thanks for the reply, Dave. I think I tried that before and it didn't
work. I'll try it again. However, what if I have multiple submit
buttons. The javascript above validates when the Login button is
clicked. What if I have a Quit button as well that calls a different
javascript function. I don't see how the onsubmit event can
distinquish between two different functions when each button is
clicked. That's why I used the onclick event so I can assign a
javascript function to each button. I assume PHP doesn't care which
event I use to call the javascript functions since PHP is server side?
But just so long as the form is submitted. Thanks.... Chong

[d]

Re: Process form with both Javascript and PHP

<mouac01@yahoo. com> wrote in message
news:1139420865 .358411.160610@ g43g2000cwa.goo glegroups.com.. .[color=blue]
> Thanks for the reply, Dave. I think I tried that before and it didn't
> work. I'll try it again. However, what if I have multiple submit
> buttons. The javascript above validates when the Login button is
> clicked. What if I have a Quit button as well that calls a different
> javascript function. I don't see how the onsubmit event can
> distinquish between two different functions when each button is
> clicked. That's why I used the onclick event so I can assign a
> javascript function to each button. I assume PHP doesn't care which
> event I use to call the javascript functions since PHP is server side?
> But just so long as the form is submitted. Thanks.... Chong[/color]

What does the quit button do?

You can have each button assign a value to a hidden input in your form -
called, say, "action", then call the submit() method of the form
(document.getEl ementById("form _id").submit()) . That will definitely be
picked up by any functions looking at the form after said value has been
assigned.

dave

[Jim Michaels]

Re: Process form with both Javascript and PHP


<mouac01@yahoo. com> wrote in message
news:1139418022 .628334.121000@ z14g2000cwz.goo glegroups.com.. .[color=blue]
> I'm new to PHP/Javascript. I have a simple form I want to validate the
> fields with javascript and then run the PHP script. All the scripts
> are in one page. I want PHP to control where the next page is. It
> works fine without the javascript but when I add the javascript the
> page doesn't do anything besides the validation. Thanks for your
> help... Chong
>
> ----login.html--------------------------------
> <?php
> ob_start();
> session_start() ;
> require('dataso urce.html');
> switch ($_POST['process'])
> {
> case 'Login':
> $_SESSION['login'] = $_POST['login'];
> $sql = "SELECT first_name, last_name, security_access , expire,
> passwd_date FROM sy_user WHERE login = '".$_SESSION['login']."' AND
> password = '".substr(sha1( $_POST['password']), 0, 10)."'";
> $result = mysql_query($sq l);
> if (mysql_num_rows ($result) < 1)
> {
> $msg = "Invalid login and password!";
> }
> else
> {
> $row = mysql_fetch_ass oc($result);
> $_SESSION['first_name'] = $row['first_name'];
> $_SESSION['last_name'] = $row['last_name'];
> $_SESSION['security_acces s'] = $row['security_acces s'];
> $passwd_date = $row['passwd_date'];
> $expire = $row['expire'];
>
> if ($passwd_date + $expire < date('Y-m-j'))
> {
> header('locatio n: expired.html');
> }
> else
> {
> header('locatio n: main.html');
> }
> }
> }[/color]

move your javascript into the HEAD section where it belongs. weird things
happen elsewhere.

[color=blue]
> ?>
> <SCRIPT LANGUAGE="JavaS cript">
> function checkrequired(f orm)
> {
> for(f=0;f<form. length;f++)
> {
> if(form[f].name.substring (4,length)=="re qd")
> {
> if(form[f].value){continu e}
> else
> {
> alert("Please fill "+form[f].name.substring (5));
> form[f].focus();
> return false;
> }
> }
> }
> return true;
> }
> </script>
>
> <form method="post">
> Login:<input name="reqd.logi n" type="text"><br >
> Password:<input name="reqd.pass word" type="password" ><br>
> <input type="submit" name="process" value="Login"
> onClick="checkr equired(this)">
> </form>
> <?php echo($msg); ?>
> -------------------------------------------------------
>[/color]

[Jim Michaels]

Re: Process form with both Javascript and PHP


"Rich" <rich@newsguy.c om> wrote in message
news:dsda3o02ea 6@drn.newsguy.c om...[color=blue]
> In article <1139418022.628 334.121000@z14g 2000cwz.googleg roups.com>,
> mouac01@yahoo.c om says...[color=green]
>>
>>I'm new to PHP/Javascript. I have a simple form I want to validate the
>>fields with javascript and then run the PHP script. All the scripts
>>are in one page. I want PHP to control where the next page is. It
>>works fine without the javascript but when I add the javascript the
>>page doesn't do anything besides the validation. Thanks for your
>>help... Chong
>>
>>----login.html--------------------------------
>><?php
>>ob_start();
>>session_start ();
>>require('data source.html');
>>switch ($_POST['process'])
>>{
>> case 'Login':
>> $_SESSION['login'] = $_POST['login'];
>> $sql = "SELECT first_name, last_name, security_access , expire,
>>passwd_date FROM sy_user WHERE login = '".$_SESSION['login']."' AND
>>password = '".substr(sha1( $_POST['password']), 0, 10)."'";
>> $result = mysql_query($sq l);
>> if (mysql_num_rows ($result) < 1)
>> {
>> $msg = "Invalid login and password!";
>> }
>> else
>> {
>> $row = mysql_fetch_ass oc($result);
>> $_SESSION['first_name'] = $row['first_name'];
>> $_SESSION['last_name'] = $row['last_name'];
>> $_SESSION['security_acces s'] = $row['security_acces s'];
>> $passwd_date = $row['passwd_date'];
>> $expire = $row['expire'];
>>
>> if ($passwd_date + $expire < date('Y-m-j'))
>> {
>> header('locatio n: expired.html');
>> }
>> else
>> {
>> header('locatio n: main.html');
>> }
>> }
>>}
>>?>
>><SCRIPT LANGUAGE="JavaS cript">
>>function checkrequired(f orm)
>>{
>>for(f=0;f<for m.length;f++)
>>{
>> if(form[f].name.substring (4,length)=="re qd")
>> {
>> if(form[f].value){continu e}
>> else
>> {
>> alert("Please fill "+form[f].name.substring (5));
>> form[f].focus();
>> return false;
>> }
>> }
>>}
>>return true;
>>}
>></script>
>>
>><form method="post">
>>Login:<inpu t name="reqd.logi n" type="text"><br >
>>Password:<inp ut name="reqd.pass word" type="password" ><br>
>><input type="submit" name="process" value="Login"
>>onClick="chec krequired(this) ">
>></form>
>><?php echo($msg); ?>
>>-------------------------------------------------------
>>[/color]
>
> May need to add to your <form> tag. Once the Javascript does the form
> validation, it needs to know where to send the form data. You have the
> method
> set to "post" but were missing the action setting. If you are sending the
> form
> back to itself you can usually specify that in PHP using...
>
> <form action="<?php $PHP_SELF; ?>" method="post">[/color]

that works if you have register_global s on probably. and it's probably not
on by default.
try using <?php echo $_SERVER['PHP_SELF']; ?> instead. it's more likely to
work.
[color=blue]
>
> You might need to pull the "onClick" event from your submit button and
> include
> that in the form tag as well.
>
> Rich
> --
> Newsguy BonusBytes! - Free monthly rewards
> http://newsguy.com/bonusbytes.htm
>[/color]