PHP - Server Side Vs. Client Side

I have a web portal which is scripted using client side scripting language i.e HTML. I want to create a login page in .php and want the other pages to be in .hmtl.
Can i do so?
I want to do this because i want the login password to be stored in a database. Also I want the password to get encrypted (by either MD5 javascript or OpenSSL ) when user enters it inside the login form.

I cannot create the entire portal in php because my portal makes use of C code. And php doesn't have an interface with C language.

Can a user get directed to a .html page after a secure login from login.php page ?
My main aim is to secure the access to my web portal using a password.

I tried to authenticate the login using javascript where the password was stored in an array. But i feel any one having moderate knowledge can easily break that password.

Any help would be greatly appreciated!!

I wish to create validation rules once which are used both on the client and on the server.   For instance, I will start off with the following PHP object:

stdClass Object
(
    [rules] => stdClass Object
        (
            [email] => stdClass Object
                (
                    [required] => 1
                    [email] => 1
                    [remote] => stdClass Object
                        (
                            [url] => check-email.php
                            [type] => post
                            [data] => stdClass Object
                                (
                                    [username] => function() {return $( '#username' ).val();}
                                )
                        )
                )
        )

    [messages] => stdClass Object
        (
            [email] => stdClass Object
                (
                    [required] => an email is required
                )
        )
)

When the edit page is downloaded to the client, I will include this object in some format suitable to the client.   The client will then use the jQuery Validation plugin (http://jqueryvalidation.org/) along with the validation object, and client side validate the page.   When the form passes client side validation and is uploaded, PHP will use the same validation object to serverside validate the form (I have this part working as desired).   My question is how should I pass this data to the client?  Originally, I would just use PHP to write some JavaScript.

exit('var myObj='.json_encode($myObj));

Note that when I json_encode the object, the value of $myObj->rules->email->remote->data->username is a string with quotes around it, however, I can easily use PHP to strip these tags before sending it to the client.   As Jacques1 pointed out in http://forums.phpfre...ascript-client/, I should never ever use PHP to generate JavaScript, and should use AJAX to download the JSON directly.  I tried doing the later, but found that a callback function could not be included in the JSON.     Please advise on the best way to accomplish this.   Thank you

Hi All - I'm trying to see if the below is possible using PHP.

is it possible for php to allow a user to check if a port is open/listening on a remote server/PC, from their local machine. I've seen scripts on the web that talk about opening cmd.exe - this won't work as not all of my users will be on windows. Also saw fsock.. but the remote server is not serving http page(s). Also saw telnet, but again, some of my users may not have that windows feature enabled.

Desired workflow:

1. user enters the server hostname/IP and a port

2. my php webapp will emulate checking if that hostname and port is open from the local user's computer.

 

thanks!

Hello guys. I was thinking on posting this under the mysql thread. but i think this can be solved by php.. anyway, i want to dump mysql data on the client side whenever a user logs out. how can i do this? thanks in advance.

I'm in the habit of verifying input client side. For example, there is a field to enter a number, and I ensure that it is within a particular range using Javascript.

My backend PHP code does not do such checking... Is this bad? Should I be doing checking using my backend code and send a response back to the client to display a message? Admittedly, I avoid it, since it's a little extra work -- well more extra than just javascripts, IF-THEN-ALERT type statement.