(PECL imagick 2.0.0)
Imagick::borderImage — Surrounds the image with a border
Surrounds the image with a border of the color defined by the bordercolor ImagickPixel object.
bordercolorImagickPixel object or a string containing the border color
widthBorder width
heightBorder height
   Returns TRUE on success.
  
| Version | Description | 
|---|---|
| 2.1.0 | Now allows a string representing the color as the first parameter. Previous versions allow only an ImagickPixel object. | 
Example #1 Imagick::borderImage()
<?php
function borderImage($imagePath, $color, $width, $height) {
    $imagick = new \Imagick(realpath($imagePath));
    $imagick->borderImage($color, $width, $height);
    header("Content-Type: image/jpg");
    echo $imagick->getImageBlob();
}
?>