__construct(PropertyPath|string $propertyPath)

Constructs a property path from a string.

Parameters

PropertyPath|string

$propertyPath

The property path as string or instance

Exceptions

InvalidArgumentException	If the given path is not a string
InvalidPropertyPathException	If the syntax of the property path is not valid

string __toString()

Returns the string representation of the property path.

Return Value

string

The path as string

int getLength()

Returns the length of the property path, i.e. the number of elements.

Return Value

int	The path length

PropertyPath getParent()

Returns the parent property path.

The parent property path is the one that contains the same items as this one except for the last one.

If this property path only contains one item, null is returned.

Return Value

PropertyPath

The parent path or null

PropertyPathIteratorInterface getIterator()

Returns a new iterator for this path.

Return Value

PropertyPathIteratorInterface

array getElements()

Returns the elements of the property path as array.

Return Value

array

An array of property/index names

string getElement(int $index)

Returns the element at the given index in the property path.

Parameters

int

$index

The index key

Return Value

string

A property or index name

Exceptions

OutOfBoundsException

If the offset is invalid

bool isProperty(int $index)

Returns whether the element at the given index is a property.

Parameters

int

$index

The index in the property path

Return Value

bool	Whether the element at this index is a property

Exceptions

OutOfBoundsException

If the offset is invalid

bool isIndex(int $index)

Returns whether the element at the given index is an array index.

Parameters

int

$index

The index in the property path

Return Value

bool	Whether the element at this index is an array index

Exceptions

OutOfBoundsException

If the offset is invalid