Bug #70622 [NEW]: imagealphablending() reports bad first parameter

From: Date: Fri, 02 Oct 2015 13:48:29 +0000
Subject: Bug #70622 [NEW]: imagealphablending() reports bad first parameter
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-196349@lists.php.net to get a copy of this message 
From:             gb4ker at gmail dot com
Operating system: Linux (1and1)
PHP version:      5.5.30
Package:          GD related
Bug Type:         Bug
Bug description:imagealphablending() reports bad first parameter

Description:
------------
The below code is fine on PHP 5.4 but fails on PHP 5.5 (tested on 1and1
Linux servers and WAMP)

imagealphablending() reports a problem - boolean parameter for parameter
1 instead of resource - on PHP 5.5 but NOT on PHP 5.4

Test script:
---------------
<?php

$f = "test.png";

$img = imagecreatefrompng($f);
if (!$img)
{
	echo "Failed to open ".$f;
	exit;
}

imagealphablending($img, true);
imagesavealpha($img, true);
      
header("Content-Type: image/png");
imagepng($img,null,6);
imagedestroy($img);
exit;

?>
 


Expected result:
----------------
Script runs on php 5.4 and returns an image.
On 5.5 reports broken image depending on browser.


-- 
Edit bug report at https://bugs.php.net/bug.php?id=70622&edit=1
-- 
Try a snapshot (PHP 5.4):   https://bugs.php.net/fix.php?id=70622&r=trysnapshot54
Try a snapshot (PHP 5.5):   https://bugs.php.net/fix.php?id=70622&r=trysnapshot55
Try a snapshot (trunk):     https://bugs.php.net/fix.php?id=70622&r=trysnapshottrunk
Fixed in SVN:               https://bugs.php.net/fix.php?id=70622&r=fixed
Fixed in release:           https://bugs.php.net/fix.php?id=70622&r=alreadyfixed
Need backtrace:             https://bugs.php.net/fix.php?id=70622&r=needtrace
Need Reproduce Script:      https://bugs.php.net/fix.php?id=70622&r=needscript
Try newer version:          https://bugs.php.net/fix.php?id=70622&r=oldversion
Not developer issue:        https://bugs.php.net/fix.php?id=70622&r=support
Expected behavior:          https://bugs.php.net/fix.php?id=70622&r=notwrong
Not enough info:            https://bugs.php.net/fix.php?id=70622&r=notenoughinfo
Submitted twice:            https://bugs.php.net/fix.php?id=70622&r=submittedtwice
register_globals:           https://bugs.php.net/fix.php?id=70622&r=globals
PHP 4 support discontinued: https://bugs.php.net/fix.php?id=70622&r=php4
Daylight Savings:           https://bugs.php.net/fix.php?id=70622&r=dst
IIS Stability:              https://bugs.php.net/fix.php?id=70622&r=isapi
Install GNU Sed:            https://bugs.php.net/fix.php?id=70622&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=70622&r=float
No Zend Extensions:         https://bugs.php.net/fix.php?id=70622&r=nozend
MySQL Configuration Error:  https://bugs.php.net/fix.php?id=70622&r=mysqlcfg

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