note 72781 added to function.getimagesize
| From: | boshka at gmail dot com | Date: | Thu, 01 Feb 2007 13:40:51 +0000 |
| Subject: | note 72781 added to function.getimagesize | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-122474@lists.php.net to get a copy of this message | ||
I was trying to workaround with the problem of getting the mime type of the image from the raw data
(the images data is stored in a database and the mime type is not known in advance). Since
getimagesize requires a file name, there are some ways to deal with it:
1. call getimagesize with a URL which points to the image - this is too slow.
2. use PHP file i/o wrapper class.
3. use temporary files. The code for #3 could be as follows:
function getimagesize_raw($data){
$cwd = getcwd(); #get current working directory
$tempfile = tempnam("$cwd/tmp", "temp_image_");#create tempfile and
return the path/name (make sure you have created tmp directory under $cwd
$temphandle = fopen($tempfile, "w");#open for writing
fwrite($temphandle, $data); #write image to tempfile
fclose($temphandle);
$imagesize = getimagesize($tempfile); #get image params from the tempfile
unlink($tempfile); // this removes the tempfile
return $imagesize;
}
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Server IP: 69.147.83.197
Probable Submitter: 136.182.158.129 (proxied: 175.37.13.13)
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Manual Page -- http://www.php.net/manual/en/function.getimagesize.php
Edit -- https://master.php.net/note/edit/72781
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Del: useless -- https://master.php.net/note/delete/72781/useless
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Del: non-english -- https://master.php.net/note/delete/72781/non-english
Del: in docs -- https://master.php.net/note/delete/72781/in+docs
Del: other reasons-- https://master.php.net/note/delete/72781
Reject -- https://master.php.net/note/reject/72781
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