how to call a external function in a specific division using php

mymahesh11

I have two files called index.php which is my main file and configFun.php file which includes all functions. I want to call a function function form configFun.php in a index.php but not anywhere it should be load in a specific div so how to implement that code.
I know how to call external function but i don't understood how to call that function in a specific div.

mymahesh11

This is the index.php file

<?php require'config.php'; ?>
<html><body>
<p>Welcome to the homepage</p>
<br>
<hr>
<a href="?run=About">About</a><br>
<a href="?run=Contact">Contact</a> <br>
<a href="?run=0">Refresh No run</a>
<div class="dispArea">

</div>
</body></html>

This is configFun.php file

<?php
if (isset($GET['run'])) $linkchoice=$GET['run'];
else $linkchoice='';
switch($linkchoice)
{
case 'About' :
myAbout();
break;
case 'Contact' :
myContact();
break;
}
?>
<?php
function myAbout(){
echo 'we are just trying it for a demo.';
}
function myContact(){
echo 'Thanx for cantacting us';
}
?>

I want to call functions in the"dispArea" div how to implement the code.

traq

Please use [noparse]

[/noparse] BBCode tags and indent your code to make it more readable.

I'm not exactly sure what you're asking, but, if I understand your question correctly, you want the result of your function to be printed in the [font=monospace].dispArea[/font] div?

Turn your HTML into a template.

index.php

<?php 
require 'config.php';

/* 
move all output to the *end* of your script (i.e., a "View", or "template" file).

It is **not possible** to print 
    "<div class=dispArea></div>"
to the browser and then, afterwards, add some content inside it.

PHP works *first*, ON THE SERVER.  As soon as you print (echo, ?>, etc.) something, it's *gone*.
HTML works *after*, ON THE USER'S BROWSER.  It has *no clue* that PHP ever existed.
*/

config.php

<?php

// you should always use brackets to define blocks.
// it will really help prevent/fix bugs.
if( isset( $_GET['run'] ) ){
    $linkchoice=$_GET['run'];
}else{
    $linkchoice=''; 
}

/*
In your functions, don't use `echo`.
Instead, `return` the text so it can be stored in a variable and inserted into your template.
*/
function myAbout(){
    return 'We are just trying it for a demo.'; 
} 
function myContact(){ 
    return 'Thanks for contacting us'; 
}

/*
In your `switch`, assign your function's return value to a variable.
Make sure you choose a unique variable name so it's not accidentally overwritten
(you could also avoid this problem by using a class (object-oriented programming)).
Here, I choose to prefix the variable with `$t_` (i.e., "template").
*/
switch( $linkchoice ){
    case 'About' : 
        $t_dispArea = myAbout(); 
        break; 
    case 'Contact' : 
        $t_dispArea = myContact(); 
        break; 
/* add a `default` case, in case `$linkchoice` is empty or doesn't match the above cases */
    default:
        $t_dispArea = "Nothing to see here.";
        break;
}

/*
When *all* of your content is ready, get your template.
*/
require 'template_index.php';

template_index.php

<!doctype html>
<html>
<body>
    <p>Welcome to the homepage</p>
    <hr>
    <a href="?run=About">About</a><br> 
    <a href="?run=Contact">Contact</a> <br> 
    <a href="?run=0">Refresh No run</a>
    <div class="dispArea">
        <?= $t_dispArea ?>
    </div>
</body>
</html><?php
/*
If you are using <PHP 5.4 and shorttags are not enabled, you'll have to do this instead:

<?php print $t_dispArea; ?>

It does excactly the same thing.
*/

// all done
exit;