Posts by Will Gresham Page 10

Will Gresham 81 Master Poster

16 Years Ago

Re: Calling PHP function on Javascript events e.g onchange

Ok, my final response, you are clearly going to continue to be ignorant.

Taken from php.net (The people who manage PHP, they have much more knowledge of PHP than you)

How can I pass a variable from Javascript to PHP?
Since Javascript is (usually) a client-side technology, and PHP is (usually) a server-side technology, and since HTTP is a "stateless" protocol, the two languages cannot directly share variables.

Link to PHP.net article

Web Development javascript php

Will Gresham 81 Master Poster

16 Years Ago

Re: Calling PHP function on Javascript events e.g onchange

I am not saying that I am the first one who figure it out....

No, you have yet to figure it out, you seem to be deliberately missing the point being made here

I hope you understand the topic.....is it very clear....that it works!
that when you trigger the onchange...it will run the php function...

No, the text in the PHP function is being parsed on the server, it has nothing to do with Javascript or onChange

even with or without code on view source....the output came from php function bro. if you want source code...RETURN THE WHOLE PAGE WITH HEADER....using heredoc.

Again, you have yet to figure it out.

Or is this your idea of a bad joke?

Web Development javascript php

Will Gresham 81 Master Poster

16 Years Ago

Re: Calling PHP function on Javascript events e.g onchange

Ok, in the other thread you started, you posted this example:

<?php
function myfunction(){
mysql_query('INSERT INTO `table` SET `column`="value"') or die(mysql_error());
return 0;
}
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script language="javascript" type="text/javascript">
function ILovePHP() {
b = "<?=myfunction();?>";
alert(b);
}
</script>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<title>Untitled Document</title>
</head>
<body>
<form action="" method="post"><input name="" name="" type="text" onChange="ILovePHP();"></form><p>
</body>
</html>

Now, load a page with that script in, then check your database BEFORE you click the textbox or do anything, I can guarantee you that the new entry will be in the database, meaning that it has been executed BEFORE you trigger the onChange event, meaning that the onChange WILL NOT update the database, it has already been done when the script loads.

You have been told the same in 2 threads on Daniweb, and you say that you found the same answer on other sites. This should indicate that Javascript cannot interact with PHP in the way you are claiming it does.

Web Development javascript php

Will Gresham 81 Master Poster

16 Years Ago

Re: Calling PHP function on Javascript events e.g onchange

Yes, this will work for static pages, but the PHP is being processed server side BEFORE it is sent to the browser, look at the source code in your browser, no PHP there.

PHP = Server Side
Javascript = Client Side

You can use pre-defined PHP variables in Javascript, but you cannot /do/ anything with PHP after the script has been processed and sent to the client.

Web Development javascript php

Will Gresham 81 Master Poster

16 Years Ago

Re: User Management

More info is needed for an accurate response, speaking generically, you need a database, which will store a username, user ID and a password at minimum (A user ID isn't actually essential, but indexing a text field takes more time than indexing an integer field)

Further than that, depends entirely on what the site is for, and until you have a database structure drawn up, I wouldn't even bother thinking about a management script.

You have asked a very vague question, the best apporach would be to search the internet: link 1 link 2, then get a script going and ask specific questions if you encounter problems.