Are there specific considerations to keep in mind when saving an image with added text in PHP, particularly in terms of file format?

When saving an image with added text in PHP, it is important to consider the file format in order to preserve the quality and transparency of the image. For images with text overlays, it is recommended to save the image in a format that supports transparency, such as PNG. This will ensure that the text overlays appear correctly on the image without any loss of quality.

// Create a new image from an existing image file
$image = imagecreatefromjpeg('image.jpg');

// Set the text color and font
$textColor = imagecolorallocate($image, 255, 255, 255);
$font = 'arial.ttf';

// Add text to the image
imagettftext($image, 20, 0, 10, 30, $textColor, $font, 'Sample Text');

// Save the image as a PNG file to preserve transparency
imagepng($image, 'output.png');

// Free up memory
imagedestroy($image);