class.strings.php: String manipulation functions

A collection of string related functions. These functions work on strings, arrays of strings (any depth). Methods include:

validateString()
validateArray()
validateEmail()
convertSymbolsToEntities()
convertTextToHTML()
trimStringToLength()
trimWordFromString()
trimFirstWordFromString()
trimLastWordFromString()
trimString()
trimStringLeft()
trimStringRight()
addSlashesToString()
trimSlashesFromString()
processFunction()
getOrdinalString()
getPluralString()
trimNewlinesFromString()
trimCarriageReturnsFromString()
getFileExtension()
getFileName()
getFileSize()
countWords()
countSentences()
countParagraphs()
getStringInformation()

Full documentation of these methods can be found within the class comments.