PHP | imagefill() Function
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.
- $color: It sets the color of image. A color identifier created by imagecolorallocate() function.
Return Value: This function returns True on success of False on failure.
Below programs illustrate the imagefill() function in PHP:
Program 1:
<?php // Create an image of given size$image = imagecreatetruecolor(500, 400); // Sets background to green$green = imagecolorallocate($image, 0, 153, 0);imagefill($image, 0, 0, $green); header('Content-type: image/png');imagepng($image);imagedestroy($image);?> |
Output:
Program 2:
<?php // It create the size of image or blank image.$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, $col_ellipse); // Output of the image.header("Content-type: image/png");imagepng($image); ?> |
Output:
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Reference: http://php.net/manual/en/function.imagefill.php
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