- * This reads the photoshop image resource.
- * Currently it only compares the iptc/iim hash
- * with the stored hash, which is used to determine the precedence
- * of the iptc data. In future it may extract some other info, like
- * url of copyright license.
- *
- * This should generally be called by BitmapMetadataHandler::doApp13()
- *
- * @param String $app13 photoshop psir app13 block from jpg.
- * @throws MWException (It gets caught next level up though)
- * @return String if the iptc hash is good or not.
- */
- public static function doPSIR ( $app13 ) {
+ * This reads the photoshop image resource.
+ * Currently it only compares the iptc/iim hash
+ * with the stored hash, which is used to determine the precedence
+ * of the iptc data. In future it may extract some other info, like
+ * url of copyright license.
+ *
+ * This should generally be called by BitmapMetadataHandler::doApp13()
+ *
+ * @param string $app13 photoshop psir app13 block from jpg.
+ * @throws MWException (It gets caught next level up though)
+ * @return string If the iptc hash is good or not. One of 'iptc-no-hash',
+ * 'iptc-good-hash', 'iptc-bad-hash'.
+ */
+ public static function doPSIR( $app13 ) {