[PHP-5.3-COMPAT] Backported r17046 to trunk
[PHP-5.3-COMPAT] Backported r17046 to trunk

git-svn-id: abaeb2b3ba5a94ed391a9405ad7d63d0414021c9@17047 44c647ce-9c0f-0410-b52a-842ac1e357ba

indeed-id/ZendPdf,heiglandreas/ZendPdf,zendframework/ZendPdf