imagesetthickness() is an inbuilt function in PHP that is used to set the thickness for line drawing.
Syntax
bool imagesetthickness($image, $thickness)
Parameters
imagesetthickness() accepts two parameters− $image and $thickness.
$image − This parameter is returned by an image creation function such as imagecreatetruecolor(). It is used to create the size of an image.
$thickness − This parameter sets the thickness in pixel.
Return Values
imagesetthickness() returns True on success and False on failure.
Example 1
<?php
// Create an image of a given size
$img = imagecreatetruecolor(700, 300);
$gray = imagecolorallocate($img, 0, 0, 255);
$white = imagecolorallocate($img, 0xff, 0xff, 0xff);
// Set the gray background color
imagefilledrectangle($img, 0, 0, 700, 300, $gray);
// Set the line thickness to 10
imagesetthickness($img, 10);
// Draw the rectangle
imagerectangle($img, 30, 30, 200, 150, $white);
// Output image to the browser
header('Content-Type: image/png');
imagepng($img);
imagedestroy($img);
?>Output
Example 2
<?php
// Create an image of given size using imagecreatetruecolor() function
$img = imagecreatetruecolor(700, 300);
$blue = imagecolorallocate($img, 0, 0, 255);
$white = imagecolorallocate($img, 0xff, 0xff, 0xff);
// Set the white background-color
imagefilledrectangle($img, 0, 0, 300, 200, $blue);
// Set the line thickness to 50
imagesetthickness($img, 50);
// Draw the white line
imageline($img, 50, 50, 250, 50, $white);
// Output image to the browser
header('Content-Type: image/png');
imagepng($img);
imagedestroy($img);
?>Output
