WeberDev.com -> PHP Manual -> Create a new image from a given part of GD2 file or URL

Description

resource imagecreatefromgd2part ( string $filename , int $srcX , int $srcY , int $width , int $height )

Create a new image from a given part of GD2 file or URL.

Tip

A URL can be used as a filename with this function if the fopen wrappers have been enabled. See fopen() for more details on how to specify the filename and List of Supported Protocols/Wrappers for a list of supported URL protocols.

Parameters

filename: Path to the GD2 image.
srcX: x-coordinate of source point.
srcY: y-coordinate of source point.
width: Source width.
height: Source height.

Return Values

Returns an image resource identifier on success, FALSE on errors.

Examples

Example #1 imagecreatefromgd2part() example

 <?php
// For this example we need the image size before
// we create the image instance
$image = getimagesize('./test.gd2');

// Create the image instance now we got the image 
// sizes
$im = imagecreatefromgd2part('./test.gd2', 4, 4, ($image[0] / 2) - 6, ($image[1] / 2) - 6);

// Do an image operation, in this case we emboss the 
// image if PHP5+
if(function_exists('imagefilter'))
{
    imagefilter($im, IMG_FILTER_EMBOSS);
}

// Save optimized image
imagegd2($im, './test_emboss.gd2');
imagedestroy($im);
?>

Notes

Note: This function requires GD 2.0.1 or later (2.0.28 or later is recommended).

Warning

Windows versions of PHP prior to PHP 4.3.0 do not support access of remote files via this function, even if allow_url_fopen is enabled.