PHP imagecreatefromstring function

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imagecreatefromstring

(PHP 4 >= 4.0.4, PHP 5)

imagecreatefromstring() returns an image identifier
representing the image obtained from the given data
These types will be automatically detected if your build of PHP supports
them: JPEG, PNG, GIF, WBMP, and GD2.

A string containing the image data

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.

Example 1. imagecreatefromstring() example

$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);
}
else {
    echo 'An error occurred.';
}

The above example will output
something similar to: