Updated php packages fix security vulnerability

php-mbstring _php_mb_regex_ereg_replace_exec() - double free (CVE-2016-5768). php-mcrypt heap Overflow due to integer overflows (CVE-2016-5769). php-SPL int/size_t confusion in SplFileObject::fread (CVE-2016-5770). php-SPL Use After Free Vulnerability in PHP’s GC algorithm and unserialize (CVE-2016-5771). php-WDDX Double Free Courruption in wddx_deserialize (CVE-2016-5772). php-zip ZipArchive class Use After Free Vulnerability in PHP’s GC algorithm and unserialize (CVE-2016-5773). The php package has been updated to version 5.6.23, fixing these issues and several other bugs. See the upstream ChangeLog for details.