Dynamically Save Canvas Coordinates (Drawing) to PNG or JPEG using PHP

I know a Canvas drawing can be saved as a PNG image using a modern browser such at Firefox 5 开发者_StackOverflow中文版I need to do the same by converting the X and Y coordinates into a PNG file using PHP how would I go about that?

Thanks in Advance!

Did you mean creating images with php? link

You Can Start By:

http://ir.php.net/manual/en/function.imagecreatefrompng.php

If you want to flip your image then: posted by xafford

<?php

define ( 'IMAGE_FLIP_HORIZONTAL', 1 );
define ( 'IMAGE_FLIP_VERTICAL', 2 );
define ( 'IMAGE_FLIP_BOTH', 3 );

function ImageFlip ( $imgsrc, $mode )
{

    $width                        =    imagesx ( $imgsrc );
    $height                       =    imagesy ( $imgsrc );

    $src_x                        =    0;
    $src_y                        =    0;
    $src_width                    =    $width;
    $src_height                   =    $height;

    switch ( (int) $mode )
    {

        case IMAGE_FLIP_HORIZONTAL:
            $src_y                =    $height;
            $src_height           =    -$height;
        break;

        case IMAGE_FLIP_VERTICAL:
            $src_x                =    $width;
            $src_width            =    -$width;
        break;

        case IMAGE_FLIP_BOTH:
            $src_x                =    $width;
            $src_y                =    $height;
            $src_width            =    -$width;
            $src_height           =    -$height;
        break;

        default:
            return $imgsrc;

    }

    $imgdest                    =    imagecreatetruecolor ( $width, $height );

    if ( imagecopyresampled ( $imgdest, $imgsrc, 0, 0, $src_x, $src_y, $width, $height, $src_width, $src_height ) )
    {
        return $imgdest;
    }

    return $imgsrc;

}

?>

These having more function. http://php.net/manual/en/function.imagecopymerge.php

http://php.net/manual/en/function.imagecopy.php . here nineslice will be correct for you i think.