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Saving a dynamic image

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Aug 24.2005

Hi,

I’ve wrote a simple script that opens an image file changes it a bit and then displays it in the browser window. These are the basics

[code=php]
<?php

Header(“Content-Type: image/png”);

$myimage = ImageCreateFromPng(“image.png”);

// do something ramdom to it

ImagePng($myimage);

ImageDestroy($myimage);

?>
[/code]

Instead of having this script output directly to the browser, I would like it to save the image to the server and have the html point to the static output.

Thanks

to post a comment
PHP

3 Comments(s) ↴

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@ScleppelAug 24.2005 — Something like this:
[code=php]<?php

ob_start();

$filename = 'png' . mktime() . '.png';

$myimage = imagecreatefrompng('image.png');

// do something ramdom to it

imagepng($myimage);

$imagevariable = ob_get_contents();

ob_end_clean();

if (!$handle = fopen($filename, 'x'))
{
echo 'Cannot open file (' . $filename . ')';
exit();
}
if (fwrite($handle, $imagevariable) === FALSE) {
echo 'Cannot write to file (' . $filename . ')';
exit;
}
echo 'Image has been saved.';
fclose($handle);

imagedestroy($myimage);

?>[/code]
Copy linkTweet thisAlerts:
@MauAug 24.2005 — A more effecient way:

[code=php]$filename = 'png' . mktime() . '.png';

$myimage = imagecreatefrompng('image.png');

// do something ramdom to it

imagepng($myimage,$filename); // saving to $filename
imagedestroy($myimage);
[/code]
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@mintauthorAug 24.2005 — The scripts work a treat, thank you both.
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