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php getimagesize_PHP tutorial

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Release: 2016-07-20 11:06:36
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php getimagesize

getimagesize reads image-related information and returns an array with four cells. Index 0 contains the pixel values ​​for the width of the image, and index 1 contains the pixel values ​​for the height of the image. Index 2 is the index of the image type

$size = getimagesize($filename);
$fp = fopen($filename, "rb");
if ( $size && $fp) {
header("Content-type: {$size['mime']}");
fpassthru($fp);
exit;
} else {
// error
}
?>


#2 getimagesize() example

list($width, $height , $type, $attr) = getimagesize("img/flag.jpg");
echo "getimagesize() example" ;
?>

Example #3 getimagesize (URL)

$size = getimagesize("http://www.example.com/gifs /logo.gif");
$size = getimagesize("http://www.example.com/gifs/lo%20go.gif");
?>

Example # 4 getimagesize() returning IPTC

$size = getimagesize("testimg.jpg", $info);
if (isset($info["APP13"])) {
$iptc = iptcparse($info["APP13"]);
var_dump($iptc);
}
?>


www.bkjia.comtruehttp: //www.bkjia.com/PHPjc/445015.htmlTechArticlephp getimagesize getimagesize reads image related information and returns an array with four cells. Index 0 contains the pixel value of the image width, index 1 contains the pixel value of the image height...
source:php.cn
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