imagedashedline

(PHP 4, PHP 5, PHP 7)

Draw a dashed line

bool imagedashedline ( resource $image, int $x1, int $y1, int $x2, int $y2, int $color )

This function is deprecated. Use combination of imagesetstyle() and imageline() instead.

Parameters:

image

An image resource, returned by one of the image creation functions, such as imagecreatetruecolor().

Upper left x coordinate.

Upper left y coordinate 0, 0 is the top left corner of the image.

Bottom right x coordinate.

Bottom right y coordinate.

color

The fill color. A color identifier created with imagecolorallocate().

Returns:

Always returns true

Examples:

imagedashedline() example

<?php
// Create a 100x100 image
$im = imagecreatetruecolor(100, 100);
$white = imagecolorallocate($im, 0xFF, 0xFF, 0xFF);
 
// Draw a vertical dashed line
imagedashedline($im, 50, 25, 50, 75, $white);
 
// Save the image
imagepng($im, './dashedline.png');
imagedestroy($im);
?>

The above example will output something similar to:

Alternative to imagedashedline()

<?php
// Create a 100x100 image
$im = imagecreatetruecolor(100, 100);
$white = imagecolorallocate($im, 0xFF, 0xFF, 0xFF);
 
// Define our style: First 4 pixels is white and the 
// next 4 is transparent. This creates the dashed line effect
$style = Array(
                $white, 
                $white, 
                $white, 
                $white, 
                IMG_COLOR_TRANSPARENT, 
                IMG_COLOR_TRANSPARENT, 
                IMG_COLOR_TRANSPARENT, 
                IMG_COLOR_TRANSPARENT
                );
 
imagesetstyle($im, $style);
 
// Draw the dashed line
imageline($im, 50, 25, 50, 75, IMG_COLOR_STYLED);
 
// Save the image
imagepng($im, './imageline.png');
imagedestroy($im);
?>