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How to create a new true-color image in PHP using imagecreatetruecolor()?
imagecreatetruecolor( ) is an inbuilt function in PHP that is used to create a new true-color image. It returns a blank image of the given size.
Syntax
resource imagecreatetruecolor($width, $height)
Parameters
imagecreatetruecolor() takes two paramters, $width and $height.
$width − The $width parameter is used to set the image width.
$height − The $height parameter is used to set the image height.
Return Values
imagecreatetruecolor() returns an image resource identifier on success or it returns false on errors.
Example 1
<?php // Set the vertices of polygon $values = array( 150, 50, // Point 1 (x, y) 50, 250, // Point 2 (x, y) 250, 250 // Point 3 (x, y) ); // Create the size of image or blank image $image = imagecreatetruecolor(700, 350); // Set the background color of image $background_color = imagecolorallocate($image, 122, 122, 122); // Fill background with above selected color imagefill($image, 0, 0, $background_color); // Allocate a color for the polygon $image_color = imagecolorallocate($image, 0, 255, 255); // Draw the polygon imagepolygon($image, $values, 3, $image_color); // Output the picture to the browser header('Content-type: image/png'); imagepng($image); ?>
Output
.jpg)
Example 2 − Below PHP code will create a new GD image stream
<?php
header ('Content-Type: image/gif');
$img = @imagecreatetruecolor(550, 220)
or die('Cannot Initialize new GD image stream');
$text_color = imagecolorallocate($img, 255, 255, 0);
imagestring($img, 10, 50, 50, 'A Simple PHP Example', $text_color);
imagepng($img);
imagedestroy($img);
?>Output
.jpg)
Updated on: 09-Aug-2021
767 Views
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