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Parameter $table_name

Expected type: String
Description: The name of the table to add the column to.

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Parameter $column_info

Expected type: Array
Description: An array of information about the column that we want to add

Array Elements of $column_info
Key	Optional	Expected type	Description
name	no	String	The name of the column
type	no	Enumerated String	The type of column - can be smallint,mediumint,int,text,varchar,char,tinytext,mediumtext,largetext
auto	yes	Mixed	Set to true to make it an auto incrementing column. Set to a numerical value to set from what it should begin counting.
default	yes	Mixed	Default value - do not set if no default required.
null	yes	Boolean	Can it be null (true or false) - if not set default will be false.
size	yes	Integer	Size of column (If applicable) - for example 255 for a large varchar, 10 for an int etc. If not set SMF will pick a size.

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Parameter $parameters

Expected type: Array
Description: An array of parameters

Array Elements of $parameters
Key	Optional	Expected type	Description
no_prefix	yes	Boolean	If true, SMF won't add the db prefix to the table.

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Parameter $if_exists

Expected type: Enumerated String
Description: What to do if the column already exists

Possible string values
Allowed values	Description
'update'	Update the existing column to match the type, options, etc.

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Parameter $error

Expected type: Enumerated String
Description: Error parameter

Possible string values
Allowed values	Description
'fatal'	Fatal error

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Return value

Expected type: Boolean
Description: Returns true if the column was successfully added or updated, false otherwise