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    Imagick::__construct

    (PECL imagick 2, PECL imagick 3)

    Imagick::__construct — Imagick のコンストラクタ

    説明

    public Imagick::__construct(mixed $files = ?)

    指定した画像あるいは画像群用に Imagick のインスタンスを作ります。

    パラメータ

    files

    読み込みたい画像へのパス、あるいは複数のパスの配列。 パスのファイル名にはワイルドカードを含めることができ、 また URL を指定することもできます。

    エラー / 例外

    エラー時に ImagickException をスローします。

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    User Contributed Notes 4 notes

    up
    9
    martin at lks dot com
    12 years ago
    If you are using windows imagemagick, at leat in my case, you have to include the full path of the file, including the 'c:' at the beginning. If you don't know for sure the way that the filename is going to come, you can use realpath() function to normalize it:

    <?php
    $incoming_file     = '/Users/John/Desktop/file_loco.jpg';
    $img = new Imagick(realpath($incoming_file));
    // realpath() will convert '/Users/John/Desktop/file_loco.jpg' to 'C:\Users\John\Desktop\file_loco.jpg'
    // and ImageMagick will have no trouble when loading
    ?>
    up
    7
    andyearnshaw at do-not-spam-mygmail dot com
    11 years ago
    If you try and load an ICO file whose extension isn't .ico, you'll get an error going along the lines of no delegate existing for the supplied image's format. The can occur, for example, if you're using a temporary file.

    <?php
    $tmp     = tempnam('cache/images', 'ico_');

    if (    copy('http://remote.url/favicon.ico', $tmp)) {
    $ico = new Imagick($tmp); // <-- ERROR!
    }
    ?>

    Your first thought might be to rename your temporary file's extension to .ico, but I decided to try something that works on the command line―prefix the file name with 'ico:'

    <?php
    $tmp     = tempnam('cache/images', 'ico_');

    if (    copy('http://remote.url/favicon.ico', $tmp)) {
    $ico = new Imagick("ico:$tmp"); // <-- Works great!
    }
    ?>
    up
    3
    divinity76 at gmail dot com
    5 years ago
    if you need to create an image from a string containing the image binary, use readImageBlob, eg

    <?php
    $imagick     = new Imagick();
    $imagick->readImageBlob($str);
    ?>

    likewise if you need to create an image from a file handle (without having the filepath), use readImageFile()
    up
    1
    Jerome
    11 years ago
    you can use PDF page as image. To do that, install ghostscript libraries.
    IMagick use ghostscript to read PDF page.

    <?php
    $myurl     = '/pdf/mypdf.pdf';
    $image = new Imagick(realpath($myurl).'[0]'); //[0] indicate the number of the wanted page
    $image->setResolution( 300, 300 );
    $image->setImageFormat( "png" );
    $image->writeImage(realpath('./mypdf.png'));
    ?>
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