Solved

img src

Posted on 2014-12-01
10
73 Views
Last Modified: 2015-01-08
Im trying to put in an image source as:-
<img src="../logos/getImgLogo.php?logoID=<?php echo $row['cid']; ?>" alt="Logo" />

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However inside html doesnt display the image, instead just displays the image as if it doesnt exist, however if I goto the location where getImgLogo.php exists and load it works fine.

Im assuming the issue is that src doesnt know its a png file so cant display it. Is this correct and if so how can I tell it there is a PNG coming in like:-
<img src="data:image/png;../logos/getImgLogo.php?logoID=<?php echo $row['cid']; ?>" alt="Logo" />

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or is there another issue?

Thank you
0
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Question by:tonelm54
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10 Comments
 
LVL 31

Expert Comment

by:Marco Gasi
ID: 40473952
You could try this:

<?php $img = "../logos/getImgLogo.php?logoID=$row['cid']; ?>
<img src="<?php echo $img ?>" alt="Logo" />

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Cheers
0
 
LVL 9

Expert Comment

by:Brian Tao
ID: 40474133
The problem is in your getImgLogo.php and not in your img tag.  Please post the php code so that people can help.
0
 
LVL 83

Expert Comment

by:Dave Baldwin
ID: 40474213
The PHP page must return the correct MIME type in a header for the image type to be recognized.  It also must be sent first before the image content.
header('Content-type: image/png'); 

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Look at the first example on this page: http://php.net/manual/en/function.imagecreate.php
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Author Comment

by:tonelm54
ID: 40485510
Im trying to show the image as:-
<HTML>
<HEAD>
</HEAD>
<BODY>
<img src="showImage.php?logoID=3" />
</BODY>
</HTML>

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And the to get the image (simplified code):-
<?php
    if (file_exists($_GET['logoID'] . ".dat")) {
        $filename = $_GET['logoID'] . ".dat";
    } else {
        $filename = "noLogo.dat";
    }
    
    $savename = $_GET['logoID'] . ".png";
    
    header("Content-Type: image/png");
    header("Content-Length: " . filesize($filename));    
    //header("Content-Disposition: attachment; filename=". $row['name']);    
    
    list($width, $height) = getimagesize($filename);
    $newwidth = 50;
    $newheight = 30;
    
    $imgsrc = file_get_contents($filename);
    
    $thumb = imagecreatetruecolor($newwidth, $newheight);
    
    $source = imagecreatefrompng($filename);
    imagecopyresized($thumb, $source, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);
    
    imagepng($thumb);
    
    imagedestroy($thumb);
    imagedestroy($source);
?>

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Ive attached the code, in the hope someone can help, please

Thank you
index.php
showImage.php
2.png
0
 
LVL 83

Expert Comment

by:Dave Baldwin
ID: 40485649
Works perfectly when you change "logoID=3" to "logoID=2" so it looks for the right image.
0
 

Author Comment

by:tonelm54
ID: 40485698
Sorry, uploaded a some wrong test data.

Im a bit confused, as when I upload it to a testing server I get the image load then disapear in chrome???

For example:-
http://test.uwh.tonycross.me.uk/imgSrc/index.php

But image loads fine:-
http://test.uwh.tonycross.me.uk/imgSrc/showImage.php?logoID=2

Very confused now :-S
0
 
LVL 83

Expert Comment

by:Dave Baldwin
ID: 40485774
No, your test site works just fine from here in Chrome and Firefox.
0
 

Accepted Solution

by:
tonelm54 earned 0 total points
ID: 40494746
I actually found the issue and now it works with all browsers.

The issue was with the line:-
header("Content-Length: " . filesize($filename));  

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When I removed it, it works fine. I dont understand why though, or why it works on your browsers and not mine
0
 
LVL 83

Assisted Solution

by:Dave Baldwin
Dave Baldwin earned 500 total points
ID: 40494780
Very puzzling because that is not done in the browser but on the server.
0
 

Author Closing Comment

by:tonelm54
ID: 40537504
Found the problem myself, but thank you for your assistance
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