What potential issues can arise when trying to change the font style of text in images using PHP?

When trying to change the font style of text in images using PHP, one potential issue that can arise is the lack of support for certain font types or formats. To solve this issue, ensure that the desired font is available on the server and in a format that PHP can use. Additionally, make sure to properly set the font file path and handle any errors that may occur during the font loading process. 

<?php
// Specify the font file path
$fontFile = 'path/to/font.ttf';

// Check if the font file exists
if (!file_exists($fontFile)) {
    die('Font file not found');
}

// Load the font
$font = imageloadfont($fontFile);
if (!$font) {
    die('Error loading font');
}

// Use the font to write text on the image
// Example code to write text on an image
$image = imagecreatefromjpeg('path/to/image.jpg');
$color = imagecolorallocate($image, 255, 255, 255);
imagettftext($image, 20, 0, 10, 50, $color, $font, 'Sample Text');
header('Content-Type: image/jpeg');
imagejpeg($image);
imagedestroy($image);
?>

Keywords

GD library image processing font rendering TrueType fonts text alignment

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