note 79145 added to function.imagecolortransparent
| From: | wesley dot gunn at email dot it | Date: | Tue, 13 Nov 2007 17:27:24 +0000 |
| Subject: | note 79145 added to function.imagecolortransparent | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-132229@lists.php.net to get a copy of this message | ||
a simple way to check png with alpha channel reading IHDR PNG HEADER
$readPng = fopen ($argSourceImagePath, "rb");
$readAlp = fread ($readPng, 52);
fclose ($readPng);
if(substr(bin2hex($readAlp),50,2) == "04" || substr(bin2hex($readAlp),50,2) ==
"06")
echo("Png has alpha");
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Server IP: 69.147.83.197
Probable Submitter: 87.7.136.32
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Manual Page -- http://www.php.net/manual/en/function.imagecolortransparent.php
Edit -- https://master.php.net/note/edit/79145
Del: integrated -- https://master.php.net/note/delete/79145/integrated
Del: useless -- https://master.php.net/note/delete/79145/useless
Del: bad code -- https://master.php.net/note/delete/79145/bad+code
Del: spam -- https://master.php.net/note/delete/79145/spam
Del: non-english -- https://master.php.net/note/delete/79145/non-english
Del: in docs -- https://master.php.net/note/delete/79145/in+docs
Del: other reasons-- https://master.php.net/note/delete/79145
Reject -- https://master.php.net/note/reject/79145
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