A collection of useful PHP functions for different purposes.
getMySQLEnumValues: Extracts options from MySQL's enum field definition into an array: enum('male','female').validUsername: Checks if the supplied string is a valid username that is: english only, no spaces, starts with letters only, contains only letters, numbers and underscores but does not end with an underscore.isPasswordStrong: Checks if password is strong containing at least: 1 uppercase letter, 1 lowercase letter, 1 number, 8 characters long.isEnglish: Checks if text is in english only letters.validTimestamp: Checks if a string is a valid timestamp.removeHttpProtocol: Removes protocol prefix (http://) or (https://) from a link.trimExtraSpace: Removes any extra white spaces from the beginning, end, and in between words.cleanText: Cleans text from any html and duplicate spaces or new lines.validEmail: Checks if the string is a valid email address.validDate: Checks if string is a valid date.validUrl: Checks if string is a valid URL address.calculateAge: Calculates the age for a given birth date and returns the age in years, months, days, decimal.imgResize: Resizes an image.getIP: Returns the IP address of the current internet session.getUseragent: Returns the useragent string of the current internet session.randomString: Generates random alpha-numeric string.isWindows: Checks if the current environment is Windows based.removeDir: Recursively deletes a directory and its entire contents.scanDirForFiles: Scans a dir and return an array of files based on file extension (jpg|png|gif).