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PHP

Draw a dashed line


imagedashedline

(PHP 4, PHP 5)

imagedashedlineDraw a dashed line

Description

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().

x1

Upper left x coordinate.

y1

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

x2

Bottom right x coordinate.

y2

Bottom right y coordinate.

color

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

Return Values

Always returns true

Examples

Example #1 imagedashedline() example

<?php
// Create a 100x100 image
$im imagecreatetruecolor(100100);
$white imagecolorallocate($im0xFF0xFF0xFF);

// Draw a vertical dashed line
imagedashedline($im50255075$white);

// Save the image
imagepng($im'./dashedline.png');
imagedestroy($im);
?>

The above example will output something similar to:

output of example : imagedashedline()

Example #2 Alternative to imagedashedline()

<?php
// Create a 100x100 image
$im imagecreatetruecolor(100100);
$white imagecolorallocate($im0xFF0xFF0xFF);

// 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($im50255075IMG_COLOR_STYLED);

// Save the image
imagepng($im'./imageline.png');
imagedestroy($im);
?>

See Also



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