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    Imagick::identifyImage

    (PECL imagick 2, PECL imagick 3)

    Imagick::identifyImage — Identifies an image and fetches attributes

    Descrizione

    public Imagick::identifyImage(bool $appendRawOutput = false): array

    Identifies an image and returns the attributes. Attributes include the image width, height, size, and others.

    Elenco dei parametri

    appendRawOutput

    If true then the raw output is appended to the array.

    Valori restituiti

    Identifies an image and returns the attributes. Attributes include the image width, height, size, and others.

    Errori/Eccezioni

    Lancia una ImagickException in caso di errore.

    Example #1 Example Result Format

    Array
(
    [imageName] => /some/path/image.jpg
    [format] => JPEG (Joint Photographic Experts Group JFIF format)
    [geometry] => Array
        (
            [width] => 90
            [height] => 90
        )

    [type] => TrueColor
    [colorSpace] => RGB
    [resolution] => Array
        (
            [x] => 300
            [y] => 300
        )

    [units] => PixelsPerInch
    [fileSize] => 1.88672kb
    [compression] => JPEG
    [signature] => 9a6dc8f604f97d0d691c0286176ddf992e188f0bebba98494b2146ee2d7118da
)

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    User Contributed Notes 3 notes

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    0
    rhuanpachecok at gmail dot com
    4 years ago
    I have created a function to parse the "rawOutput" because the information provided by this function is quite useless.

    function parseIdentify($info) {
        $lines = explode("\n", $info);
       
        $outputs = [];
        $output = [];
        $keys = [];
       
        $currSpaces = 0;
        $raw = false;
       
        foreach($lines as $line) {
            $trimLine = trim($line);
           
            if(empty($trimLine)) continue;
           
            if($raw) {
                preg_match('/^[0-9]+:\s/', $trimLine, $match);
               
                if(!empty($match)) {
                    $regex = '/([\d]+):';
                    $regex .= '\s(\([\d|\s]{1,3},[\d|\s]{1,3},[\d|\s]{1,3},[\d|\s]{1,3}\))';
                    $regex .= '\s(#\w+)';
                    $regex .= '\s(srgba\([\d|\s]{1,3},[\d|\s]{1,3},[\d|\s]{1,3},[\d|\s|.]+\)|\w+)/';

                    preg_match($regex, $trimLine, $matches);
                    array_shift($matches);
                   
                    $output['Image'][$raw][] = $matches;
                   
                    continue;
                }
               
                else {
                    $raw = false;
                    array_pop($keys);
                }
            }
           
            preg_match('/^\s+/', $line, $match);
           
            $spaces = isset($match[0]) ? strlen($match[0]) : $spaces = 0;
            $parts = preg_split('/:\s/', $trimLine, 2);
           
            $_key = ucwords($parts[0]);
            $_key = str_replace(' ', '', $_key);
            $_val = isset($parts[1]) ? $parts[1] : [];
           
            if($_key == 'Image') {
                if(!empty($output)) {
                    $outputs[] = $output['Image'];
                    $output = [];
                }
               
                $_val = [];
            }
           
            if($spaces < $currSpaces) {
                for($i = 0; $i < ($currSpaces - $spaces) / 2; $i++) {
                    array_pop($keys);
                }
            }
           
            if(is_array($_val)) {
                $_key = rtrim($_key, ':');
                $keys[] = $_key;
               
                if($_key == 'Histogram' || $_key == 'Colormap') {
                    $raw = $_key;
                }
            }
           
            $currSpaces = $spaces;
            $arr = &$output;
           
            foreach($keys as $key) {
                if(!isset($arr[$key])) {
                    $arr[$key] = $_val;
                }
               
                $arr = &$arr[$key];
            }
           
            if(!is_array($_val)) {
                $arr[$_key] = $_val;
            }
           
        }
       
        $outputs[] = $output['Image'];
       
        return count($outputs) > 1 ? $outputs : $outputs[0];
    }

    Usage example:

    $img = new Imagick('example.png');
    $identify = parseIdentify($img->identifyImage(true)['rawOutput']);

    But the "rawOutput" that this function returns only contains the first frame if it is a GIF. Alternatively you can use the command "identify" to get the data of all the frames:

    $identify = parseIdentify(shell_exec('identify -verbose example.gif'));
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    0
    php at ontheroad dot net dot nz
    13 years ago
    If you use the option to append the raw output, you can extract the mime type from there.  I'm not sure what's going on in the background here, but it seems far less useful than the command line identify tool.
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    0
    rob at OhReally dot nl
    16 years ago
    The array returned by Imagick::identifyImage():

    Array
    (
        [imageName] => /some/path/image.jpg
        [format] => JPEG (Joint Photographic Experts Group JFIF format)
        [geometry] => Array
            (
                [width] => 90
                [height] => 90
            )

        [type] => TrueColor
        [colorSpace] => RGB
        [resolution] => Array
            (
                [x] => 300
                [y] => 300
            )

        [units] => PixelsPerInch
        [fileSize] => 1.88672kb
        [compression] => JPEG
        [signature] => 9a6dc8f604f97d0d691c0286176ddf992e188f0bebba98494b2146ee2d7118da
    )

    Looks like the only way to get the mimetype is getimagesize()...
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