Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Z] U pattern-modifier U.S. Naval Observatory uasort( ) ucfirst( ) ucwords( ) umask umask( ) underscore (_) unescaped metacharacters uninstall PEAR command unions (arrays) uniqid( ) 2nd unit tests suite, writing web pages, applying Unix binary files, reading directories in pathnames handling line delimiters shell syslog(3) timestamps [See epoch timestamps] Unix epoch timestamps [See epoch timestamps] unlink( ), deleting files unpack( ) binary data and unserialize( ) 2nd unset( ) 2nd 3rd 4th 5th property accesses, overriding UPDATE query 2nd 3rd building queries programmatically finding number of upgrade PEAR command UPLOAD_ERR_CANT_WRITE element ($HTTP_POST_FILES) UPLOAD_ERR_FORM_SIZE element ($HTTP_POST_FILES) UPLOAD_ERR_INI_SIZE element ($HTTP_POST_FILES) UPLOAD_ERR_NO_FILE element ($HTTP_POST_FILES) UPLOAD_ERR_NO_TMP_DIR element ($HTTP_POST_FILES) UPLOAD_ERR_OK element ($HTTP_POST_FILES) UPLOAD_ERR_PARTIAL element ($HTTP_POST_FILES) upload_max_filesize upload_tmp_dir configuration directive uploaded files urlencode( ) URLs, fetching Usenet posting messages reading messages Userland Software 2nd usernames usort( ) 2nd UTC (Coordinated Universal Time) 2nd offsets UTF-8 utf8_decode( ) utf8_encode( ) utils.php 2nd |