imagecreatefromstring
(PHP 4 >= 4.0.4, PHP 5, PHP 7)
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imagecreatefromstring
( string
$image
) : resourceimagecreatefromstring() ����һ��ͼ���ʶ���������˴Ӹ����ַ���������ͼ��ͼ���ʽ���Զ���⣬ֻҪ PHP ֧�֣�JPEG��PNG��GIF��WBMP �� GD2��
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-
image -
A string containing the image data.
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An image resource will be returned on success. FALSE is returned if
the image type is unsupported, the data is not in a recognised format,
or the image is corrupt and cannot be loaded.
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Example #1 imagecreatefromstring() example
<?php
$data = 'iVBORw0KGgoAAAANSUhEUgAAABwAAAASCAMAAAB/2U7WAAAABl'
. 'BMVEUAAAD///+l2Z/dAAAASUlEQVR4XqWQUQoAIAxC2/0vXZDr'
. 'EX4IJTRkb7lobNUStXsB0jIXIAMSsQnWlsV+wULF4Avk9fLq2r'
. '8a5HSE35Q3eO2XP1A1wQkZSgETvDtKdQAAAABJRU5ErkJggg==';
$data = base64_decode($data);
$im = imagecreatefromstring($data);
if ($im !== false) {
header('Content-Type: image/png');
imagepng($im);
imagedestroy($im);
}
else {
echo 'An error occurred.';
}
?>
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- imagecreatefromjpeg() - ���ļ��� URL ����һ����ͼ��
- imagecreatefrompng() - ���ļ��� URL ����һ����ͼ��
- imagecreatefromgif() - ���ļ��� URL ����һ����ͼ��
- imagecreatetruecolor() - �½�һ�����ɫͼ��