Zend Framework requires a PHP 5 interpreter with a web server configured to handle PHP scripts correctly. Some features require additional extensions or web server features; in most cases the framework can be used without them, although performance may suffer or ancillary features may not be fully functional. An example of such a dependency is mod_rewrite in an Apache environment, which can be used to implement "pretty URL's" like "http://www.example.com/user/edit". If mod_rewrite is not enabled, ZF can be configured to support URL's such as "http://www.example.com?controller=user&action=edit". Pretty URL's may be used to shorten URL's for textual representation or search engine optimization (SEO), but they do not directly affect the functionality of the application. Zend recommends the most current release of PHP for critical security and performance enhancements, and currently supports PHP 5.2.4 or later. Zend Framework has an extensive collection of unit tests, which you can run using PHPUnit 3.3.0 or later. You will find a table listing all extensions typically found in PHP and how they are used in Zend Framework below. You should verify that the extensions on which ZF components you'll be using in your application are available in your PHP environments. Many applications will not require every extension listed below. A dependency of type "hard" indicates that the components or classes cannot function properly if the respective extension is not available, while a dependency of type "soft" indicates that the component may use the extension if it is available but will function properly if it is not. Many components will automatically use certain extensions if they are available to optimize performance but will execute code with similar functionality in the component itself if the extensions are unavailable. Extension Dependency Type Used by Zend Framework Components apc Hard Zend_Cache_Backend_Apc Soft Zend_File_Transfer bcmath Soft Zend_Locale bitset Soft Zend_Search_Lucene bz2 --- --- calendar --- --- com_dotnet --- --- ctype Hard Zend_Auth_Adapter_Http Zend_Gdata Zend_Http_Client Zend_Pdf Zend_Rest_Client Zend_Rest_Server Zend_Search_Lucene Zend_Uri Zend_Validate curl Hard Zend_Http_Client_Adapter_Curl date Soft Zend_Amf dba --- --- dbase --- --- dom Hard Zend_Amf Zend_Dom Zend_Feed Zend_Gdata Zend_Log_Formatter_Xml Zend_Rest_Server Zend_Soap Zend_Search_Lucene Zend_Service_Amazon Zend_Service_Delicious Zend_Service_Flickr Zend_Service_Simpy Zend_Service_Yahoo Zend_XmlRpc exif --- --- fbsql --- --- fdf --- --- filter --- --- ftp --- --- gd Hard Zend_Captcha Zend_Pdf gettext --- --- gmp --- --- hash Hard Zend_Auth_Adapter_Http ibm_db2 Hard Zend_Db_Adapter_Db2 iconv Hard Zend_Currency Zend_Locale_Format Zend_Mime Zend_Pdf Zend_Search_Lucene Zend_Service_Audioscrobbler Zend_Service_Flickr Zend_XmlRpc_Client imap --- --- informix --- --- interbase Hard Zend_Db_Adapter_Firebird json Soft Zend_Json ldap Hard Zend_Ldap libxml --- --- mbstring Hard Zend_Feed mcrypt Hard Zend_Service_ReCaptcha memcache Hard Zend_Cache_Backend_Memcached mhash --- --- mime_magic Hard Zend_Http_Client ming --- --- msql --- --- mssql --- --- mysql --- --- mysqli Hard Zend_Db_Adapter_Mysqli ncurses --- --- oci8 Hard Zend_Db_Adapter_Oracle odbc --- --- openssl --- --- pcntl --- --- pcre Hard Virtually all components pdo Hard All PDO database adapters pdo_dblib --- --- pdo_firebird --- --- pdo_mssql Hard Zend_Db_Adapter_Pdo_Mssql pdo_mysql Hard Zend_Db_Adapter_Pdo_Mysql pdo_oci Hard Zend_Db_Adapter_Pdo_Oci pdo_pgsql Hard Zend_Db_Adapter_Pdo_Pgsql pdo_sqlite Hard Zend_Db_Adapter_Pdo_Sqlite pgsql --- --- posix Soft Zend_Mail pspell --- --- readline --- --- recode --- --- Reflection Hard Zend_Controller Zend_Filter Zend_Filter_Input Zend_Json Zend_Log Zend_Rest_Server Zend_Server_Reflection Zend_Validate Zend_View Zend_XmlRpc_Server session Hard Zend_Controller_Action_Helper_Redirector Zend_Session shmop --- SimpleXML Hard Zend_Config_Xml Zend_Feed Zend_Rest_Client Zend_Service_Audioscrobbler Zend_Soap Zend_XmlRpc Soft Zend_Amf soap Hard Zend_Service_StrikeIron Zend_Soap sockets --- --- SPL Hard Virtually all components SQLite Hard Zend_Cache_Backend_Sqlite standard Hard Virtually all components sybase --- --- sysvmsg --- --- sysvsem --- -- sysvshm --- --- tidy --- --- tokenizer --- --- wddx --- --- xml Hard Zend_Translate_Adapter_Qt Zend_Translate_Adapter_Tmx Zend_Translate_Adapter_Xliff XMLReader --- --- xmlrpc --- --- XMLWriter --- --- xsl --- --- zip --- --- zlib Hard Zend_Pdf Below is a table that lists all available Zend Framework Components and which PHP extension they need. This can help guide you to know which extensions are required for your application. Not all extensions used by Zend Framework are required for every application. A dependency of type "hard" indicates that the components or classes cannot function properly if the respective extension is not available, while a dependency of type "soft" indicates that the component may use the extension if it is available but will function properly if it is not. Many components will automatically use certain extensions if they are available to optimize performance but will execute code with similar functionality in the component itself if the extensions are unavailable. Zend Framework Components Dependency Type PHP Extension All Components Hard pcre SPL standard Zend_Acl --- --- Zend_Amf Hard date Soft dom SimpleXML Zend_Auth Hard ctype hash Zend_Cache Hard apc memcache sqlite zlib Zend_Captcha Hard gd Zend_Config Hard libxml SimpleXML Zend_Console_Getopt --- --- Zend_Controller Hard Reflection session Zend_Currency Hard iconv Zend_Date --- --- Zend_Db Hard ibm_db2 mysqli oci8 pdo pdo_mssql pdo_mysql pdo_oci pdo_pgsql pdo_sqlite Zend_Debug --- --- Zend_Dojo --- --- Zend_Dom Hard dom Zend_Exception --- --- Zend_Feed Hard dom libxml mbstring SimpleXML Zend_File_Transfer Soft apc upload_extension Zend_Filter Hard Reflection Zend_Form --- --- Zend_Gdata Hard ctype dom libxml Zend_Http Hard ctype curl mime_magic Zend_InfoCard --- --- Zend_Json Soft json Hard Reflection Zend_Layout --- --- Zend_Ldap --- ldap Zend_Loader --- --- Zend_Locale Soft bcmath Hard iconv Zend_Log Hard dom libxml Reflection Zend_Mail Soft posix Zend_Measure --- --- Zend_Memory --- --- Zend_Mime Hard iconv Zend_OpenId --- --- Zend_Paginator --- --- Zend_Pdf Hard ctype gd iconv zlib Zend_ProgressBar --- --- Zend_Registry --- --- Zend_Request --- --- Zend_Rest Hard ctype dom libxml Reflection SimpleXML Zend_Search_Lucene Soft bitset Hard ctype dom iconv libxml Zend_Server_Reflection Hard Reflection Zend_Service_Akismet --- --- Zend_Service_Amazon Hard dom libxml Zend_Service_Audioscrobbler Hard iconv libxml SimpleXML Zend_Service_Delicious Hard dom libxml Zend_Service_Flickr Hard dom iconv libxml Zend_Service_Nirvanix --- --- Zend_Service_ReCaptcha Hard mcrypt Zend_Service_Simpy Hard dom libxml Zend_Service_SlideShare --- --- Zend_Service_StrikeIron Hard soap Zend_Service_Technorati --- --- Zend_Service_Twitter --- --- Zend_Service_Yahoo Hard dom libxml Zend_Session Hard session Zend_Soap Hard dom SimpleXML soap Zend_Test --- --- Zend_Text --- --- Zend_TimeSync --- --- Zend_Translate Hard xml Zend_Uri Hard ctype Zend_Validate Hard ctype Reflection Zend_Version --- --- Zend_Validate Hard Reflection Zend_Wildfire --- --- Zend_XmlRpc Hard dom iconv libxml Reflection SimpleXML Below you can find a table listing Zend Framework Components and their dependencies to other Zend Framework Components. This can help you if you need to have only single components instead of the complete Zend Framework. A dependency of type "hard" indicates that the components or classes cannot function properly if the respective dependent component is not available, while a dependency of type "soft" indicates that the component may need the dependent component in special situations or with special adapters. At last a dependency of type "fix" indicated that this components or classes are in any case used by subcomponents, and a dependency of type "sub" indicates that these components can be used by subcomponents in special situations or with special adapters. Even if it's possible to seperate single components for usage from the complete Zend Framework you should keep in mind that this can lead to problems when files are missed or components are used dynamically. Zend Framework Component Dependency Type Dependent Zend Framework Component Zend_Acl Hard Zend_Exception Zend_Amf Hard Zend_Exception Zend_Server Soft Zend_Date Zend_Loader Sub Zend_Locale Zend_Registry Zend_Auth Hard Zend_Exception Soft Zend_Db Zend_InfoCard Zend_Ldap Zend_OpenId Zend_Session Fix Zend_Controller Zend_Http Zend_Loader Zend_Locale Zend_Uri Zend_View Sub Zend_Captcha Zend_Config Zend_Date Zend_Dojo Zend_Filter Zend_Form Zend_Json Zend_Layout Zend_Registry Zend_Server Zend_Service_ReCaptcha Zend_Text Zend_Validate Zend_Wildfire Zend_Cache Hard Zend_Exception Soft Zend_Log Sub Zend_Captcha Zend_Config Zend_Controller Zend_Date Zend_Db Zend_Dojo Zend_Filter Zend_Form Zend_Http Zend_Json Zend_Layout Zend_Loader Zend_Locale Zend_Registry Zend_Server Zend_Service_ReCaptcha Zend_Session Zend_Text Zend_Uri Zend_Validate Zend_View Zend_Wildfire Zend_Captcha Hard Zend_Exception Zend_Service_ReCaptcha Zend_Text Zend_Validate Fix Zend_Http Zend_Json Zend_Loader Zend_Locale Zend_Server Zend_Uri Sub Zend_Date Zend_Filter Zend_ReLoader Zend_Config Hard Zend_Exception Zend_Console_Getopt Hard Zend_Exception Soft Zend_Json Sub Zend_Loader Zend_Server Zend_Controller Hard Zend_Config Zend_Exception Zend_Loader Zend_Registry Zend_Uri Zend_View Soft Zend_Dojo Zend_Filter Zend_Json Zend_Layout Fix Zend_Locale Zend_Validate Sub Zend_Captcha Zend_Date Zend_Db Zend_Form Zend_Http Zend_Server Zend_Service_ReCaptcha Zend_Session Zend_Text Zend_Wildfire Zend_Currency Hard Zend_Exception Zend_Locale Sub Zend_Loader Zend_Registry Zend_Date Hard Zend_Exception Zend_Locale Sub Zend_Loader Zend_Registry Zend_Db Hard Zend_Exception Zend_Loader Soft Zend_Registry Zend_Wildfire Sub Zend_Captcha Zend_Config Zend_Controller Zend_Date Zend_Db Zend_Dojo Zend_Filter Zend_Form Zend_Http Zend_Json Zend_Layout Zend_Server Zend_Service_ReCaptcha Zend_Session Zend_Text Zend_Uri Zend_Validate Zend_View Zend_Debug --- --- Zend_Dojo Hard Zend_Exception Zend_Form Zend_Json Zend_Registry Zend_View Soft Zend_Filter Fix Zend_Config Zend_Loader Zend_Locale Zend_Uri Zend_Validate Sub Zend_Captcha Zend_Controller Zend_Date Zend_Db Zend_Dojo Zend_Http Zend_Layout Zend_Server Zend_Service_ReCaptcha Zend_Session Zend_Text Zend_Wildfire Zend_Dom Hard Zend_Exception Zend_Exception --- --- Zend_Feed Hard Zend_Exception Zend_Loader Zend_Uri Fix Zend_Locale Zend_Validate Sub Zend_Date Zend_Filter Zend_Http Zend_Registry Zend_File_Transfer Hard Zend_Exception Soft Zend_Loader Zend_Filter Hard Zend_Exception Zend_Loader Zend_Validate Soft Zend_Locale Sub Zend_Date Zend_Registry Zend_Form Hard Zend_Exception Zend_Filter Zend_Validate Soft Zend_Captcha Zend_Controller Zend_Json Zend_Loader Zend_Registry Zend_Session Fix Zend_Config Zend_Http Zend_Locale Zend_Server Zend_Service_ReCaptcha Zend_Text Zend_Uri Zend_View Sub Zend_Date Zend_Db Zend_Dojo Zend_Form Zend_Layout Zend_Wildfire Zend_Gdata Hard Zend_Exception Zend_Http Zend_Mime Zend_Version Soft Zend_Loader Fix Zend_Locale Zend_Uri Zend_Validate Sub Zend_Date Zend_Filter Zend_Registry Zend_Http Hard Zend_Exception Zend_Loader Zend_Uri Fix Zend_Locale Zend_Validate Sub Zend_Date Zend_Filter Zend_Registry Zend_InfoCard Hard Zend_Exception Zend_Loader Zend_Json Hard Zend_Exception Zend_Loader Zend_Server Zend_Layout Hard Zend_Exception Soft Zend_Controller Zend_Filter Zend_Loader Zend_View Fix Zend_Config Zend_Layout Zend_Registry Zend_Uri Zend_Validate Sub Zend_Captcha Zend_Date Zend_Db Zend_Dojo Zend_Form Zend_Http Zend_Json Zend_Locale Zend_Server Zend_Service_ReCaptcha Zend_Session Zend_Text Zend_Wildfire Zend_Ldap Hard Zend_Exception Zend_Loader Hard Zend_Exception Zend_Locale Hard Zend_Exception Soft Zend_Registry Sub Zend_Loader Zend_Log Hard Zend_Exception Soft Zend_Wildfire Sub Zend_Captcha Zend_Config Zend_Controller Zend_Date Zend_Db Zend_Dojo Zend_Filter Zend_Form Zend_Http Zend_Json Zend_Layout Zend_Loader Zend_Registry Zend_Server Zend_Service_ReCaptcha Zend_Session Zend_Text Zend_Uri Zend_Validate Zend_View Zend_Mail Hard Zend_Exception Zend_Loader Zend_Mime Zend_Validate Fix Zend_Locale Sub Zend_Date Zend_Filter Zend_Registry Zend_Measure Hard Zend_Exception Zend_Locale Zend_Registry Sub Zend_Loader Zend_Memory Hard Zend_Cache Zend_Exception Sub Zend_Captcha Zend_Config Zend_Controller Zend_Date Zend_Db Zend_Dojo Zend_Filter Zend_Form Zend_Http Zend_Json Zend_Layout Zend_Loader Zend_Locale Zend_Log Zend_Registry Zend_Server Zend_Service_ReCaptcha Zend_Session Zend_Text Zend_Uri Zend_Validate Zend_View Zend_Wildfire Zend_Mime Hard Zend_Exception Zend_OpenId Hard Zend_Controller Zend_Exception Zend_Http Zend_Session Fix Zend_Config Zend_Dojo Zend_Loader Zend_Locale Zend_Registry Zend_Uri Zend_Validate Zend_View Sub Zend_Captcha Zend_Date Zend_Db Zend_Filter Zend_Form Zend_Json Zend_Layout Zend_Server Zend_Service_ReCaptcha Zend_Text Zend_Wildfire Zend_Paginator Hard Zend_Exception Zend_Json Zend_Loader Soft Zend_Controller Zend_Db Zend_View Fix Zend_Server Sub Zend_Captcha Zend_Config Zend_Date Zend_Dojo Zend_Filter Zend_Form Zend_Http Zend_Layout Zend_Locale Zend_Registry Zend_Service_ReCaptcha Zend_Session Zend_Text Zend_Uri Zend_Validate Zend_Wildfire Zend_Pdf Hard Zend_Exception Zend_Log Zend_Memory Fix Zend_Cache Sub Zend_Captcha Zend_Config Zend_Controller Zend_Date Zend_Db Zend_Dojo Zend_Filter Zend_Form Zend_Http Zend_Json Zend_Layout Zend_Loader Zend_Locale Zend_Registry Zend_Server Zend_Service_ReCaptcha Zend_Session Zend_Text Zend_Uri Zend_Validate Zend_View Zend_Wildfire Zend_Progressbar Hard Zend_Config Zend_Exception Zend_Json Soft Zend_Session Fix Zend_Db Zend_Loader Zend_Server Sub Zend_Captcha Zend_Date Zend_Dojo Zend_Filter Zend_Form Zend_Http Zend_Layout Zend_Registry Zend_Service_ReCaptcha Zend_Text Zend_Uri Zend_Validate Zend_View Zend_Wildfire Zend_Registry Hard Zend_Exception Soft Zend_Loader Zend_Request --- --- Zend_Rest Hard Zend_Exception Zend_Server Zend_Service Zend_Uri Fix Zend_Http Zend_Loader Zend_Locale Zend_Validate Sub Zend_Date Zend_Filter Zend_Registry Zend_Search_Lucene Hard Zend_Exception Zend_Server Hard Zend_Exception Zend_Service_Akismet Hard Zend_Exception Zend_Http Zend_Uri Zend_Version Fix Zend_Loader Zend_Locale Zend_Validate Sub Zend_Date Zend_Filter Zend_Registry Zend_Service_Amazon Hard Zend_Exception Zend_Http Zend_Rest Fix Zend_Loader Zend_Locale Zend_Server Zend_Service Zend_Uri Zend_Validate Sub Zend_Date Zend_Filter Zend_Registry Zend_Service_Audioscrobbler Hard Zend_Exception Zend_Http Fix Zend_Loader Zend_Locale Zend_Uri Zend_Validate Sub Zend_Date Zend_Filter Zend_Registry Zend_Service_Delicious Hard Zend_Date Zend_Exception Zend_Http Zend_Json Zend_Rest Fix Zend_Loader Zend_Locale Zend_Server Zend_Service Zend_Uri Zend_Validate Sub Zend_Filter Zend_Registry Zend_Service_Flickr Hard Zend_Exception Zend_Http Soft Zend_Rest Zend_Validate Fix Zend_Loader Zend_Locale Zend_Server Zend_Service Zend_Uri Sub Zend_Date Zend_Filter Zend_Registry Zend_Service_Nirvanix Hard Zend_Exception Zend_Http Zend_Loader Fix Zend_Locale Zend_Uri Zend_Validate Sub Zend_Date Zend_Filter Zend_Registry Zend_Service_ReCaptcha Hard Zend_Exception Zend_Http Zend_Json Fix Zend_Loader Zend_Locale Zend_Server Zend_Uri Zend_Validate Sub Zend_Date Zend_Filter Zend_Registry Zend_Service_Simpy Hard Zend_Exception Zend_Http Zend_Rest Fix Zend_Loader Zend_Locale Zend_Server Zend_Service Zend_Uri Zend_Validate Sub Zend_Date Zend_Filter Zend_Registry Zend_Service_SlideShare Hard Zend_Cache Zend_Exception Zend_Http Fix Zend_Loader Zend_Locale Zend_Uri Zend_Validate Sub Zend_Captcha Zend_Config Zend_Controller Zend_Date Zend_Db Zend_Dojo Zend_Filter Zend_Form Zend_Json Zend_Layout Zend_Log Zend_Registry Zend_Server Zend_Service_ReCaptcha Zend_Session Zend_Text Zend_View Zend_Wildfire Zend_Service_StrikeIron Hard Zend_Exception Zend_Http Zend_Loader Fix Zend_Locale Zend_Uri Zend_Validate Fix Zend_Date Zend_Filter Zend_Registry Zend_Service_Technorati Hard Zend_Date Zend_Exception Zend_Http Zend_Uri Zend_Locale Soft Zend_Rest Fix Zend_Loader Zend_Server Zend_Service Zend_Validate Sub Zend_Filter Zend_Registry Zend_Service_Twitter Hard Zend_Exception Zend_Feed Zend_Http Zend_Json Zend_Rest Zend_Uri Fix Zend_Loader Zend_Locale Zend_Server Zend_Service Zend_Validate Fix Zend_Date Zend_Filter Zend_Registry Zend_Service_Yahoo Hard Zend_Exception Zend_Http Zend_Rest Soft Zend_Validate Fix Zend_Loader Zend_Locale Zend_Server Zend_Service Zend_Uri Sub Zend_Date Zend_Filter Zend_Registry Zend_Session Hard Zend_Exception Soft Zend_Config Zend_Db Zend_Loader Sub Zend_Captcha Zend_Date Zend_Dojo Zend_Filter Zend_Form Zend_Http Zend_Json Zend_Layout Zend_Registry Zend_Server Zend_Service_ReCaptcha Zend_Session Zend_Text Zend_Uri Zend_Validate Zend_View Zend_Wildfire Zend_Soap Hard Zend_Exception Zend_Server Zend_Uri Fix Zend_Loader Zend_Locale Zend_Validate Sub Zend_Date Zend_Filter Zend_Registry Zend_Test Hard Zend_Controller Zend_Dom Zend_Exception Zend_Layout Zend_Registry Zend_Session Soft Zend_Loader Fix Zend_Config Zend_Locale Zend_Uri Zend_Validate Zend_View Sub Zend_Captcha Zend_Date Zend_Db Zend_Dojo Zend_Filter Zend_Form Zend_Http Zend_Json Zend_Server Zend_Service_ReCaptcha Zend_Text Zend_Wildfire Zend_Text Hard Zend_Exception Soft Zend_Loader Zend_TimeSync Hard Zend_Date Zend_Exception Zend_Loader Fix Zend_Locale Sub Zend_Registry Zend_Translate Hard Zend_Exception Zend_Loader Zend_Locale Sub Zend_Registry Zend_Uri Hard Zend_Exception Zend_Loader Zend_Locale Zend_Validate Soft Zend_Date Zend_Filter Zend_Registry Zend_Validate Hard Zend_Exception Zend_Loader Zend_Locale Soft Zend_Date Zend_Filter Zend_Registry Zend_Version --- --- Zend_View Hard Zend_Controller Zend_Exception Zend_Loader Zend_Locale Zend_Registry Soft Zend_Json Zend_Layout Fix Zend_Config Zend_Uri Zend_Validate Sub Zend_Captcha Zend_Date Zend_Db Zend_Dojo Zend_Filter Zend_Form Zend_Http Zend_Server Zend_Service_ReCaptcha Zend_Session Zend_Text Zend_Wildfire Zend_Wildfire Hard Zend_Controller Zend_Exception Zend_Json Zend_Loader Fix Zend_Config Zend_Layout Zend_Registry Zend_Server Zend_Uri Zend_Validate Zend_View Sub Zend_Captcha Zend_Date Zend_Db Zend_Dojo Zend_Filter Zend_Form Zend_Http Zend_Layout Zend_Service_ReCaptcha Zend_Session Zend_Text Zend_XmlRpc Hard Zend_Exception Zend_Http Zend_Server Fix Zend_Loader Zend_Uri Zend_Validate Zend_Locale Sub Zend_Date Zend_Filter Zend_Registry