DataDumper dumps any PHP-resource on the screen or in a file. The variable/object/other resource is displayed with syntax highlighting, indenting and variable type information in a very intuitive format. File and linenumber of the call is displayed.
texQL, "sQL for Text" grants you sql-like access to all ascii-files on the filesystem. eg: SELECT foundcount,filename,filesize,content,linenumber,linecount FROM ./ WHERE CONTAINS='mysql_connect' OR 'mysql_pconnect' AND filename="*.php"