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    imageaffinematrixget

    (PHP 5 >= 5.5.0, PHP 7, PHP 8)

    imageaffinematrixget — Get an affine transformation matrix

    说明

    imageaffinematrixget(int $type, array|float $options): array|false

    Returns an affine transformation matrix.

    参数

    type

    One of the IMG_AFFINE_* constants.

    options

    If type is IMG_AFFINE_TRANSLATE or IMG_AFFINE_SCALE, options has to be an array with keys x and y, both having float values.

    If type is IMG_AFFINE_ROTATE, IMG_AFFINE_SHEAR_HORIZONTAL or IMG_AFFINE_SHEAR_VERTICAL, options has to be a float specifying the angle.

    返回值

    An affine transformation matrix (an array with keys 0 to 5 and float values) 或者在失败时返回 false.

    示例

    示例 #1 imageaffinematrixget() example

    <?php
    $matrix     = imageaffinematrixget(IMG_AFFINE_TRANSLATE, array('x' => 2, 'y' => 3));
    print_r($matrix);
    ?>

    以上示例会输出：

    Array
(
    [0] => 1
    [1] => 0
    [2] => 0
    [3] => 1
    [4] => 2
    [5] => 3
)

    参见

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