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[2009-12-20 01:03 UTC] bobkellock at gofast dot co dot uk
Description:
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PHP version is actually 5.2.10 which is what is run on the server at One.com but is due to be upgraded to 5.3 on 2010-01-04.
imagecreatefromjpeg and other imagecreatefromxxx functions put up "Image" in a small rectangle on the centre of the screen.
This is unsightly in my application which simply creates the image and overlays it with some text using imagestring followed by writing the overlaid image to a file. i.e. the original or overlaid image is never written to the screen.
Bob Kellock
Reproduce code:
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header('Content-Type: image/jpg');
$serial = "CL1949F"; // normally passed as a session variable
$img = imagecreatefromjpeg('blankorder.jpg');
$textcolour = imagecolorallocate($img, 0, 0, 0);
$font = imageloadfont('Arial24.gdf');
imagestring($img, $font, 535, 312, $serial, $textcolour);
imagejpeg($img,'orderform.jpg');
imagedestroy($img);
header('refresh: 0; url=stamped.html'); // redirect to new page
Expected result:
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Creation of overlaid file - which works OK.
Screen should be blank.
Actual result:
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"Image" in a small rectangle is displayed
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I object strongly to your comment "This bug report makes no sense". Just try: <?php header('Content-type: image/jpeg'); $img = imagecreatefromjpeg('xxx.jpg'); ?> which generates the spurious display where xxx.jpg is known to be a valid jpeg. Please note that this is using v5.2.10. I had to give an incorrect version number because the bug reporter would not allow me to submit the report with that number in the Version box and I have no control over the version available from my web host.> Try the same thing without the Content-type header and I bet you > > will see an error instead of a broken image. You lost your bet! There is no error message and it now works exactly as I want i.e. as previously but without the spurious "Image" in a rectangle. The header line was a lefover fom when I was learning how to use the GD calls and wanted to display the original jpeg; without it what was being displayed was textural gobbledegook. <?php header('Content-type: image/jpeg'); $img = imagecreatefromjpeg('xxxx.jpg'); imagejpeg($img); ?> The above displays the image correctly in Opera 10.10, FF 3.5.6, Safari for Windows 4.0.3, Chrome and IE8. If I omit the imagejpeg($img) line: Opera (my default browser) displays the rectangle as previously described. FF displays the URL of the page. Chrome and Safari just generate a blank screen. IE8 displays a red X in a box in the top left of the screen. Seemingly there is no error but, despite that, it appears that imagecreatefromjpeg is returning something to the browser which causes some of them to generate a spurious display.