(PHP 4 >= 4.0.7, PHP 5, PHP 7)
imagecreatefromgd2part — �Ӹ����� GD2 �ļ��� URL �еIJ����½�һͼ��
$filename
, int $srcX
, int $srcY
, int $width
, int $height
) : resourceCreate a new image from a given part of GD2 file or URL.
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filename
Path to the GD2 image.
srcX
x-coordinate of source point.
srcY
y-coordinate of source point.
width
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height
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�ɹ���ͼ����Դ,ʧ�ܺ� FALSE
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Example #1 imagecreatefromgd2part() example
<?php
// For this example we need the image size before
$image = getimagesize('./test.gd2');
// Create the image instance now we got the image
// sizes
$im = imagecreatefromgd2part('./test.gd2', 4, 4, ($image[0] / 2) - 6, ($image[1] / 2) - 6);
// Do an image operation, in this case we emboss the
// image if PHP 5+
if(function_exists('imagefilter'))
{
imagefilter($im, IMG_FILTER_EMBOSS);
}
// Save optimized image
imagegd2($im, './test_emboss.gd2');
imagedestroy($im);
?>
Note: �˺�����Ҫ GD 2.0.1 ����߰汾(�Ƽ� 2.0.28 �����߰汾)��
Windows �汾�� PHP �� 4.3.0 ��֮ǰ��֧��ͨ���˺�������Զ���ļ�����ʹ�Ѿ����� allow_url_fopen.