note 62029 deleted from ref.image by tularis
| From: | tularis@php.net | Date: | Sun, 29 Jun 2008 21:02:42 +0000 |
| Subject: | note 62029 deleted from ref.image by tularis | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-140926@lists.php.net to get a copy of this message | ||
Note Submitter: relsqui at chiliahedron dot com
----
<?php
// This is a correction to the image-flipping function I posted previously.
// The bitwise ands (&) were incorrectly written as logical ands (&&).
// Needless to say, that breaks the function in obnoxious--if amusing--ways.
define("VERTICAL", 1);
define("HORIZONTAL", 2);
function imageflip($image, $mode) {
$w = imagesx($image);
$h = imagesy($image);
$flipped = imagecreate($w, $h);
if ($mode & VERTICAL) {
for ($y = 0; $y < $h; $y++) {
imagecopy($flipped, $image, 0, $y, 0, $h - $y - 1, $w, 1);
}
}
if ($mode & HORIZONTAL) {
for ($x = 0; $x < $w; $x++) {
imagecopy($flipped, $image, $x, 0, $w - $x - 1, 0, 1, $h);
}
}
return $flipped;
}
?>