PHP getimagesizefromstring - Get image info function

PHP getimagesizefromstring - Get image info function

PHP Image Processing

getimagesizefromstring - Get image size information from a string.

grammar

array getimagesizefromstring ( string $imagedata [, array &$imageinfo ] )

With getimagesize () function. The difference is getimagesizefromstring () The first parameter is the string representation of the image data, not the file name.

parameter

• imagedata: a string representation of the image data.
• imageinfo: See also getimagesize () function.

Examples

<?php
$img = 'w3big-logo.png';

// 以文件方式打开
$size_info1 = getimagesize($img);

// 以字符串格式打开
$data = file_get_contents($img);
$size_info2 = getimagesizefromstring($data);
print_r($size_info2);
?>

The above example output is:

Array
(
    [0] => 290
    [1] => 69
    [2] => 3
    [3] => width="290" height="69"
    [bits] => 8
    [mime] => image/png
)

PHP Image Processing