The imagecolorat() function gets the index of the color of the pixel.
Syntax
imagecolorat( $img, $x, $y )
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Parameters
-
img: Create an image with imagecreatetruecolor() function.
-
x: The x-coordinate of the point.
-
y: The y-coordinate of the point.
Return
The imagecolorat() function returns the color index or FALSE on failure.
Example
The following is an example:
Live Demo
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输出
以下是输出结果:
array(4) { ["red"]=> int(255) ["green"]=> int(255) ["blue"]=> int(255) ["alpha"]=> int(127) }
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