Convert to SQL date / date time format (ISO8601) from a format given by the options parameter.

Convert from SQL date / date time format (ISO8601) to a format given by the options parameter.

Convert from one date time format to another

Convert a string of values into an array for use with checkboxes.

Convert a number from using any character other than a period (dot) to one which does use a period.This is useful for allowing numeric user input in regions where a comma is used as the decimal character. Use with a set formatter.

Convert an empty string to `null`. Null values are very useful in databases, but HTTP variables have no way of representing `null` as a value, often leading to an empty string and null overlapping. This method will check the value to operate on and return null if it is empty.

Convert an array of values from a checkbox into a string which can be used to store in a text field in a database.

Convert an empty string to `null`. Null values are very useful in databases, but HTTP variables have no way of representing `null` as a value, often leading to an empty string and null overlapping. This method will check the value to operate on and return null if it is empty.

Convert a number with a period (dot) as the decimal character to use a different character(typically a comma). Use with a get formatter.