[PHP] AJAXReplacer Class

timROGERS · 15-02-2007, 06:13 PM

Yes, I know, it's not really AJAX, it's just Javascript, it's only AJAX if you dynamically get the data

But it just sounds a lot better eh? I've written another PHP class, after my RSSReader class, this time which is a bit more simple

It makes replacing text with Javascript more easy - you can just run the PHP multiple times if you want to have more than one replacing. Here's the code for AJAXReplacer.class.php:

PHP Code:


<?php
// AJAXReplacer Class by Tim Rogers
// To use this, place the needed PHP between the <head> tags
// To replace something, call replace_(WHAT YOU SET AS JAVANAME)
class AJAXReplacer {
    var $span;
    var $javaname;

    function replace($replace_with) {
        echo '<script type="text/javascript">';
        echo 'function replace_';
        echo $this->javaname;
        echo '() { document.getElementById("';
        echo $this->span;
        echo '").innerHTML = "';
        echo $replace_with;
        echo '"; }</script>';
    }
}
?>

And here is how to call it, aka test.php:

PHP Code:


<?php
// Brings in the class
require("AJAXReplacer.class.php");
?>
<html>
<head>
<title>AJAXReplacer Test</title>
<?php
// AJAXReplacer Test

// Creates a new "AJAXReplacer" object and assigns it to $replacer
$replacer = new AJAXReplacer;
// Sets the span to replace
$replacer->span = "replacehere";
// Sets the name of the function which will be created
$replacer->javaname = "replacetest";
// Creates a function to replace the span with the string in the parameter of replace()
$replacer->replace("This has been replaced");
?>
</head>
<body>
<a onclick="replace_replacetest();"><span id="replacehere">This is going to be replaced</span></a>
</body>
</html>

For a sample of it working, visit http://php5.tim-rogers.co.uk/AJAXReplacer/test.php. It isn't PHP5, but I put it in my PHP5 area as I was already on it

.

ZAG · 15-02-2007, 06:36 PM

This is a bit pointless than the other one but I know you haven't made many classes before.

Good though.

nets · 15-02-2007, 07:05 PM

the class would cause yuor html to become repetitive. preferably, an external javascript file would contain a one-off function to perform such tasks (preventing inefficient homogeneous code).

(-:

timROGERS · 15-02-2007, 07:17 PM

Originally Posted by Th0m4s

This is a bit pointless than the other one but I know you haven't made many classes before.

Good though.

Yeah, this one was just another idea that I had - it's not really particuarly useful, I agree.

Originally Posted by nets

the class would cause yuor html to become repetitive. preferably, an external javascript file would contain a one-off function to perform such tasks (preventing inefficient homogeneous code).

(-:

I did think of that. It writes really horrible code, which I dislike to. It's difficult to read because it doesn't use line breaks, it just puts the coding into one long line.

Mentor · 15-02-2007, 09:18 PM

Kudos on the OOP approach, although i dont really see then benifit over simply writeing in the javascript function by hand, and supplying the relivant varibles to it, avoideing the needless php o.0

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