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How to draw a line using imageline() function in PHP?
imageline() is an inbuilt function in PHP that is used to draw a line between two given points.
Syntax
bool imageline(resource $image, int $x1, int $y1,int $x2, int $y2, int $color)
Parameters
imageline() takes six different parameters: $image, $x1, $y1, $x2, $y2 and $color.
$image − Specifies the image resource to work on.
$x1 − Specifies the starting x-coordinate.
$y1 − Specifies the starting y-coordinate.
$x2 − Specifies the ending x-coordinate.
$y2 − Specifies the ending y-coordinate.
$color − Specifies the line color and a color identifier created using imagecolorallocate() function.
Return Values
imageline() returns True on success or False on failure.
Example 1 − Add a line to an image
<?php // Create an image using imagecreatefrompng() function $img = imagecreatefrompng('C:\xampp\htdocs\test\515.png'); // allocated the line color $text_color = imagecolorallocate($img, 255, 255, 0); // Set the thickness of the line imagesetthickness($img, 5); // Add a line using imageline() function. imageline($img, 80, 300, 1140, 300, $text_color); // Output of the image header('Content-type: image/png'); imagepng($img); imagedestroy($img); ?>
Output
.jpg)
Example 2
<?php // Create an image using imagecreate() function $img = imagecreate(700, 300); // Allocate the colors $grey = imagecolorallocate($img, 122, 122, 122); $blue = imagecolorallocate($img, 0, 0, 255); // Set the thickness of the line imagesetthickness($img, 15); // Add a grey background color imageline($img, 0, 0, 550, 400, $grey); // Add a blue line imageline($img, 0, 0, 550, 400, $blue); // Output the image header('Content-type: image/png'); imagepng($img); imagedestroy($img); ?>
Output
.jpg)
Updated on: 09-Aug-2021
1K+ Views
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