PHP - Question Regarding Server Side Processing

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!!

is it true that all the server side code runs before the client side code when accessing a webpage?  if that is true, what about PHP code that is embedded inside HTML tags?  wouldn't that result in an error a lot of times?

Hi,

I am doing some scraping and processing in php that is time intensive.  On my local machine it was no big deal, but now that the project is live and has realtime users daily I have some concerns.

When php is processing does this mean other people can't connect to the server? (They will be queued until the process I am running finishes) ?

I hope not, but my local testing seems like it IS that way.  

I did this:

I ran a php script from my browser that took a few minutes to execute.  While it was running I tried accessing the same local site via another browser tab and it halted.

If this is in fact how php works on the live server, how would I go about running about 6000 processes daily that would consume ~1-4 hours of processing time?

 

Thanks.

 

 

Edited September 6, 2019 by fivestringsurf

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

I am doing server side validations using php and jquery.Its validating properly.But problem is the erros messages are displaying on the top of the page.I want to display side of field.All of the validations store in array.How to display errors to side of the field.