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dbart
Neuer User
Anmeldungsdatum: 13.04.2007
Beiträge: 3
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 13.04.2007 13:52 image_barcode not working |
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Hi,
i have problems creating barcode graphics using the image_barcode.
code is:
| Code: |
<body>
<?
require_once("Image/Barcode.php");
Image_Barcode::draw($_GET['NUM'], $_GET['TYP'], $_GET['IMG']);
?>
<img src="barcode.php?NUM=9780131471498&TYP=ean13&IMG=png"/>
<img src="barcode.php?NUM=9780131471498&TYP=int25&IMG=png"/>
</body>
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but the graphics do not appear.
all i can see are two little red crosses.
gd support is enabled
would appreciate some tips
thx |
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Berdir
Power User
Anmeldungsdatum: 22.09.2005
Beiträge: 1347
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| 13.04.2007 14:21 |
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red cross could mean that there is an output wich is not an image, for example an error message.
Check the return message from draw:
| PHP: | <?php
$return = Image_Barcode::draw($_GET['NUM'], $_GET['TYP'], $_GET['IMG']);
if (PEAR::isError($return)) {
die ($return->getMessage());
} |
And open the image-url directly in the browser or even in a simple text editor.
I am not sure if I understand your code right, make sure there are only these 4 lines in barcode.php, and nothing else above or under. (not even empty lines)
| PHP: | <?
require_once("Image/Barcode.php");
Image_Barcode::draw($_GET['NUM'], $_GET['TYP'], $_GET['IMG']);
?> |
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dbart
Neuer User
Anmeldungsdatum: 13.04.2007
Beiträge: 3
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Berdir
Power User
Anmeldungsdatum: 22.09.2005
Beiträge: 1347
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| 13.04.2007 15:10 |
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| PHP: | <?php
if (!include_once('Image/Barcode/' . $type . '.php')) {
return PEAR::raiseError($type . ' barcode is not supported');
} |
It seems that this code failes.. check that for example Image/Barcode/int25.php is there and could be included. |
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dbart
Neuer User
Anmeldungsdatum: 13.04.2007
Beiträge: 3
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| 13.04.2007 15:27 |
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all files exist and they are where they're supposed to be
/php/pear/image/barcode/
include returns no error.
i have found another example right here
http://www.mribti.com/barcode/sample.php
online it works but when i download it and let it run on my localhost
the barcode is not displayed, again that little red cross
thx so far |
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Berdir
Power User
Anmeldungsdatum: 22.09.2005
Beiträge: 1347
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| 13.04.2007 15:54 |
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Are you sure that the parameters are correct when you call draw() ?
Try the following before draw() and open the "image" again directly in the browser
| PHP: | <?php
var_dump($_GET);
die(); |
I write this because you said that you had the error message "barcode is not supported", imho this should actually be: "test123 barcode is not supported" where test123 is the barcode type (for example int25). So it seems to me that $type is empty.
You could also try an hardcoded example:
| PHP: | <?php
require_once("Image/Barcode.php");
$return = Image_Barcode::draw('9780131471498', 'int25', 'png');
if (PEAR::isError($return)) {
die ($return->getMessage());
} |
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