How can PHP be utilized to concatenate placeholder characters and actual text in a way that maintains consistent sizing and appearance in ImageMagick-generated graphics?

When creating graphics with ImageMagick in PHP, it can be challenging to concatenate placeholder characters and actual text while maintaining consistent sizing and appearance. One way to solve this is by using the `annotateImage` function in ImageMagick to overlay text onto the image. By specifying the font size, style, and position of the text, you can ensure that the placeholder characters and actual text are displayed correctly.

<?php
// Create a new Imagick object
$image = new Imagick();

// Set the image size and background color
$image->newImage(200, 100, 'white');

// Set the font properties
$draw = new ImagickDraw();
$draw->setFont('Arial');
$draw->setFontSize(20);
$draw->setFillColor('black');

// Concatenate placeholder characters and actual text
$text = 'Placeholder Text: ' . 'Actual Text';
$image->annotateImage($draw, 10, 50, 0, $text);

// Display the image
header('Content-Type: image/png');
echo $image;
?>