PHP Manual: Set the thickness for line drawing

Description

bool imagesetthickness(GdImage $image, int $thickness)

imagesetthickness sets the thickness of the lines drawn when drawing rectangles, polygons, arcs etc. to thickness pixels.

Parameters

image: A GdImage object, returned by one of the image creation functions, such as imagecreatetruecolor.
thickness: Thickness, in pixels.

Return Values

Returns true on success or false on failure.

Changelog

Version	Description
8.0.0	`image` expects a GdImage instance now; previously, a valid `gd` resource was expected.

Examples

Example #1 imagesetthickness example

<?php
// Create a 200x100 image
$im = imagecreatetruecolor(200, 100);
$white = imagecolorallocate($im, 0xFF, 0xFF, 0xFF);
$black = imagecolorallocate($im, 0x00, 0x00, 0x00);

// Set the background to be white
imagefilledrectangle($im, 0, 0, 299, 99, $white);

// Set the line thickness to 5
imagesetthickness($im, 5);

// Draw the rectangle
imagerectangle($im, 14, 14, 185, 85, $black);

// Output image to the browser
header('Content-Type: image/png');

imagepng($im);
imagedestroy($im);
?>

The above example will output something similar to: