PHP - Manual: imageaffinematrixget
2024-11-12
(PHP 5 >= 5.5.0, PHP 7, PHP 8)
imageaffinematrixget — Get an affine transformation matrix
$type
, array|float $options
): array|falseReturns an affine transformation matrix.
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.
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 #1 imageaffinematrixget() example
<?php
$matrix = imageaffinematrixget(IMG_AFFINE_TRANSLATE, array('x' => 2, 'y' => 3));
print_r($matrix);
?>
以上例程会输出:
Array ( [0] => 1 [1] => 0 [2] => 0 [3] => 1 [4] => 2 [5] => 3 )
官方地址:https://www.php.net/manual/en/function.imageaffinematrixget.php