PHP imageantialias Function: Usage, Parameters, and Example
The article explains PHP’s GD library function imageantialias, detailing its purpose, parameters, return values, limitations such as lack of alpha support, and provides a complete example that creates two images, toggles antialiasing, draws lines, merges them, and outputs a PNG.
The imageantialias function in PHP’s GD library enables or disables antialiasing for line and polygon drawing on true‑color images, but it does not support alpha channels, line widths, or styles.
Parameters: $image – an image resource created by functions such as imagecreatetruecolor() ; $enabled – a boolean indicating whether antialiasing should be turned on.
Return value: on success the function returns the image resource; on failure it returns FALSE .
Example usage creates two images, enables antialiasing on one, allocates colors, draws lines, merges the images side by side, and outputs the result as a PNG.
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