PHP getimagesizefromstring - Get Image Information Function

PHP 图像处理PHP Image Processing

getimagesizefromstring — Get image size information from a string.

Syntax

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

samegetimagesize()Function. The difference is that the first parameter of getimagesizefromstring() is a string representation of the image data, rather than a filename.

Parameters

  • imagedata：A string representation of the image data.
  • imageinfo：See alsogetimagesize()Function.

Example

<?php
$img = 'example-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 output of the above example is:

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

PHP 图像处理PHP Image Processing

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