imagecolorsforindex
Description
The imagecolorsforindex of Image for PHP get the colors for an index.
Syntax
imagecolorsforindex( GdImage $image, int $color ): array
Parameters
image
A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor().
color
The color index.
Return
Returns an associative array with red, green, blue and alpha keys that contain the appropriate values for the specified color index.
Examples
1 · return
<? $width = 100; $height = 100; $image = imagecreatetruecolor($width, $height); $red = 255; $green = 128; $blue = 0; $alpha = 64; $background = imagecolorallocatealpha($image, $red, $green, $blue, $alpha); $x = 0; $y = 0; imagefill($image, $x, $y, $background); $x = 0; $y = 0; $color = imagecolorat($image, $x, $y); $return = imagecolorsforindex($image, $color); print_r($return);
Array ( [red] => 255 [green] => 128 [blue] => 0 [alpha] => 64 )
Links
Related
Image
- gd_info
- getimagesize
- getimagesizefromstring
- image_type_to_extension
- image_type_to_mime_type
- imageaffine
- imageaffinematrixconcat
- imageaffinematrixget
- imagealphablending
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- imagearc
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- imagecolordeallocate
- imagecolorexact
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- imagecolormatch
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- imagecolorset
- imagecolorstotal
- imagecolortransparent
- imageconvolution
- imagecopy
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- imagecopyresampled
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- imagecreate
- imagecreatefromavif
- imagecreatefrombmp
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- imagegif
- imageinterlace
- imageistruecolor
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- imagesy
- imagetruecolortopalette
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- imagewbmp
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