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• uasort - Sort an array with a user-defined comparison function andmaintain index association
• uksort - Sort an array by keys using a user-defined comparison function
• usort - Sort an array by values using a user-defined comparison function
• unixtojd - Convert Unix timestamp to Julian Day
• user_error - Alias of trigger_error()
• umask - Changes the current umask
• unlink - Deletes a file
• unregister_tick_function - De-register a function for execution on each tick
• uniqid - Generate a unique ID
• unpack - Unpack data from binary string
• usleep - Delay execution in microseconds
• udm_add_search_limit - Add various search limits
• udm_alloc_agent_array - Allocate mnoGoSearch session
• udm_alloc_agent - Allocate mnoGoSearch session
• udm_api_version - Get mnoGoSearch API version
• udm_cat_list - Get all the categories on the same level with the current one
• udm_cat_path - Get the path to the current category
• udm_check_charset - Check if the given charset is known to mnogosearch
• udm_check_stored - Check connection to stored
• udm_clear_search_limits - Clear all mnoGoSearch search restrictions
• udm_close_stored - Close connection to stored
• udm_crc32 - Return CRC32 checksum of given string
• udm_errno - Get mnoGoSearch error number
• udm_error - Get mnoGoSearch error message
• udm_find - Perform search
• udm_free_agent - Free mnoGoSearch session
• udm_free_ispell_data - Free memory allocated for ispell data
• udm_free_res - Free mnoGoSearch result
• udm_get_doc_count - Get total number of documents in database
• udm_get_res_field - Fetch mnoGoSearch result field
• udm_get_res_param - Get mnoGoSearch result parameters
• udm_hash32 - Return Hash32 checksum of gived string
• udm_load_ispell_data - Load ispell data
• udm_open_stored - Open connection to stored
• udm_set_agent_param - Set mnoGoSearch agent session parameters
• use_soap_error_handler - Set whether to use the SOAP error handler and return the former value
• ucfirst - Make a string's first character uppercase
• ucwords - Uppercase the first character of each word in a string
• unicode_encode - Takes a unicode string and converts it to a string in the specified encoding
• urldecode - Decodes URL-encoded string
• urlencode - URL-encodes string
• unserialize - Creates a PHP value from a stored representation
• unset - Unset a given variable
• utf8_decode - Converts a string with ISO-8859-1 characters encoded with UTF-8to single-byte ISO-8859-1
• utf8_encode - Encodes an ISO-8859-1 string to UTF-8

Programowanie w jezyku PHP 5.0