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Posted by pangea33 on 12/13/06 03:43
Anonymous wrote:
> toffee wrote:
> >
> > Hi all,
> >
> > not sure if this is possible in PHP - every couple of weeks; i get a few png
> > files; which i th open in an image editor; add a text box with comments in
> > the top right corner; save the pngs and save them for later use by a php
> > script.
> > My question is there an automatic way so that a php script can do all this
> > image editing for me ?
> >
> > i appreciate all replies.
>
> Sure.
>
> Check the image functions in the PHP manual, especially the functions
> imagecreatefrompng to load a png image, imagestring (or imagepstext or
> imagettftext if you want Postscript Type 1 or Truetype fonts) to write
> your text into it and imagepng to output it again in png format.
>
> Bye!
With a little practice it's not too tough to do this dynamically. Here
are the most useful php functions to get started with...
http://us2.php.net/imagecreatefrompng
http://us2.php.net/manual/en/function.imagefilledrectangle.php
http://us2.php.net/manual/en/function.imagefttext.php
Here's a simple example so you can get an idea of what is involved....
<?php
// Set the content-type
header("Content-type: image/png");
// Create the image
$im = ImageCreateFrompng("images/myImg.png");
// Create some colors
$white = imagecolorallocate($im, 255, 255, 255);
$grey = imagecolorallocate($im, 128, 128, 128);
$black = imagecolorallocate($im, 0, 0, 0);
imagefilledrectangle($im, 10, 5, 450, 80, $white);
// The text to draw
$text = 'Dynamic Text';
// Replace path by your own font path
$font = 'fonts/arial.ttf';
// Add some shadow to the text
//imagettftext($im, 30, 45, 201, 301, $grey, $font, $text);
// Add the text
imagettftext($im, 15, 10, 410, 70, $grey, $font, $text);
// Using imagepng() results in clearer text compared with imagejpeg()
imagepng($im);
imagedestroy($im);
?>
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