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17 years ago
Here is a function I thought I would share that will resample and copy an image with rounded corners.

<?php
/** ------------------------------------------------------------
 * Copy and resample an image with rounded corners.
 * ----------------------------------------------------------- */
function imageRoundedCopyResampled(&$dstimg, &$srcimg, $dstx, $dsty, $srcx,
                                   $srcy, $dstw, $dsth, $srcw, $srch, $radius) {
    # Resize the Source Image
    $srcResized = imagecreatetruecolor($dstw, $dsth);
    imagecopyresampled($srcResized, $srcimg, 0, 0, $srcx, $srcy,
                       $dstw, $dsth, $srcw, $srch);
    # Copy the Body without corners
    imagecopy($dstimg, $srcResized, $dstx+$radius, $dsty,
              $radius, 0, $dstw-($radius*2), $dsth);
    imagecopy($dstimg, $srcResized, $dstx, $dsty+$radius,
              0, $radius, $dstw, $dsth-($radius*2));
    # Create a list of iterations; array(array(X1, X2, CenterX, CenterY), ...)
    # Iterations in order are: Top-Left, Top-Right, Bottom-Left, Bottom-Right
    $iterations = array(
        array(0, 0, $radius, $radius),
        array($dstw-$radius, 0, $dstw-$radius, $radius),
        array(0, $dsth-$radius, $radius, $dsth-$radius),
        array($dstw-$radius, $dsth-$radius, $dstw-$radius, $dsth-$radius)
    );
    # Loop through each corner 'iteration'
    foreach($iterations as $iteration) {
        list($x1,$y1,$cx,$cy) = $iteration;
        for ($y=$y1; $y<=$y1+$radius; $y++) {
            for ($x=$x1; $x<=$x1+$radius; $x++) {
                # If length (X,Y)->(CX,CY) is less then radius draw the point
                $length = sqrt(pow(($cx - $x), 2) + pow(($cy - $y), 2));
                if ($length < $radius) {
                    imagecopy($dstimg, $srcResized, $x+$dstx, $y+$dsty,
                              $x, $y, 1, 1);
                }
            }
        }
    }
}
?>
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