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PHP | imagefill() Function

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The imagefill() function is an inbuilt function in PHP which is used to fill the image with the given color. This function performs a flood fill starting at the given coordinate (top left is 0, 0) with the given color in the image. Syntax:
bool imagefill( $image, $x, $y, $color )
Parameters:This function accepts four parameters as mentioned above and described below:
  • $image: It is returned by one of the image creation functions, such as imagecreatetruecolor(). It is used to create size of image.
  • $x: This parameter is used to set x-coordinate of starting point.
  • $y: This parameter is used to set y-coordinate of starting point.
  • $color: It sets the color of image. A color identifier created by imagecolorallocate() function.
Return Value: This function returns True on success of False on failure. Below programs illustrate the imagefill() function in PHP: Program 1:
// Create an image of given size
$image = imagecreatetruecolor(500, 400);
// Sets background to green
$green = imagecolorallocate($image, 0, 153, 0);
imagefill($image, 0, 0, $green);
header('Content-type: image/png');

Output: image filled Program 2:
// It create the size of image or blank image.
$image = imagecreatetruecolor(500, 300);
// Set the background color of image.
$bg = imagecolorallocate($image, 205, 220, 200);
// Fill background with above selected color.
imagefill($image, 0, 0, $bg);
// Set the color of an ellipse.
$col_ellipse = imagecolorallocate($image, 0, 102, 0);
// Function to draw the filled ellipse.
imagefilledellipse($image, 250, 150, 400, 250, $col_ellipse);
// Output of the image.
header("Content-type: image/png");

Output: image filled Related Articles: Reference:

Last Updated : 23 Aug, 2019
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