Simple image manipulation functions for php

image_functions.php

    public static function resize_image($image, $w, $h) {
        $ret = imagecreatetruecolor($w, $h);
        imagealphablending( $ret, false );
        imagesavealpha( $ret, true );
        imagecopyresampled($ret, $image, 0, 0, 0, 0, $w, $h, imagesx($image), imagesy($image));
        //imageantialias($ret,true);
        return $ret;
    }
   
    public static function overlay_image($image, $overlay, $x, $y) {
        imagealphablending($image, true);
        imagealphablending($overlay, true);
        imagecopy($image, $overlay, $x, $y, 0, 0, imagesx($overlay), imagesy($overlay));
        //return $image;
    }