[SOLVED] Generate an image in php?

[pinacoladaxb]

I want to generate an image based on user inputted data. The best way to describe what I want to do is to use an example...

 

Let's say I want to make a 120 X 120 pixel image that represents user inputted data. I'd have it broken into 4 sections. Each section will hold an image that is a part of the entire image.

So what I want to do is make user input determine what goes in each square. I want different numbers to mean different pictures. For example...

1 = smile

2 = frown

If the user inputs the text "1221" then I want this image to be generated:

Can anyone explain how to do this? I've seen similar things done before, so I know it's possible. Remember, I want the final image to be 1 image. Thanks in advance. 

 

EDIT: The way the text is inputted will be via POST. The POST string will be "input=(input)." The php page will just need to generate the image.

[Barand]

In the main page

<img src='myimage.php?text=1221'>

 

in "myimage.php"

<?php
$text = $_GET['text'];    //$text now contains 1221

$im = imagecreate(120,120);

// build the image here

header("content-type: image/png");
imagepng($im);
imagedestroy($im);
?>

[pinacoladaxb]

I understood up to the part where I build the image. How do I build it?

[Barand]

Use imagecopy() to place the required smiley into each quadrant

[pinacoladaxb]

Thanks. I'll try it, but I may need more help as what I am actually doing is a lot more than this.

[pinacoladaxb]

I still can't figure out how to build the image. Could you explain it a bit more?

[pinacoladaxb]

Never mind. I figured it out. Thanks for the help!