\ChapterThree\AppleNewsAPI\DocumentBase

jsonSerialize()

jsonSerialize() 

Implements JsonSerializable::jsonSerialize().

__toString()

__toString() 

Implements __toString().

json()

json() : boolean|string

Generates json representation.

Returns

JSON string, or FALSE on error.

triggerError()

triggerError(string  $message, integer  $message_type = E_USER_NOTICE) 

Error handler.

Parameters

optional()

optional() 

Define optional properties.

isSupportedUnit()

isSupportedUnit(mixed  $value) : boolean

Helper function to determine if a value is suffixed by a supported unit.

Parameters

Returns

Result.

isUnitInterval()

isUnitInterval(float|integer  $value) : boolean

Helper function to determine if a value is a unit interval.

A unit interval is the closed interval [0,1], that is, the set of all real numbers that are greater than or equal to 0 and less than or equal to 1.

Parameters

Returns

Result.

isHexColor()

isHexColor(string  $value) : boolean

Helper to validate color hex code.

Valid codes are hexadecimal numbers of length 3, 6 or 8 (with opacity), prefixed with "#".

Parameters

Returns

Result.