Class FilterIterator

__construct()source public

__construct( Iterator $items , callable $callback )

Creates a filtered iterator using the callback to determine which items are accepted or rejected.

Each time the callback is executed it will receive the value of the element in the current iteration, the key of the element and the passed $items iterator as arguments, in that order.

Parameters

Iterator $items

The items to be filtered.

callable $callback

Callback.

Throws

Overrides

__debugInfo()source public

__debugInfo( )

Returns an array that can be used to describe the internal state of this object.

Returns

count()source public

count( )

Throws an exception.

Issuing a count on a Collection can have many side effects, some making the Collection unusable after the count operation.

Throws

serialize()source public

serialize( )

Returns a string representation of this object that can be used to reconstruct it

Returns

Implementation of

unserialize()source public

unserialize( string $collection )

Unserializes the passed string and rebuilds the Collection instance

Parameters

string $collection

The serialized collection

Implementation of

_unwrap()source public

_unwrap( )

Backwards compatible wrapper for unwrap()

Deprecated

Returns

append()source public

append( $items )

buffered()source public

buffered( )

Returns

cartesianProduct()source public

cartesianProduct( callable $operation null , callable $filter null )

Returns

chunk()source public

chunk( $chunkSize )

combine()source public

combine( $keyPath , $valuePath , $groupPath null )

compile()source public

compile( $preserveKeys true )

contains()source public

contains( $value )

countBy()source public

countBy( $callback )

each()source public

each( callable $c )

every()source public

every( callable $c )

extract()source public

extract( $matcher )

filter()source public

filter( callable $c null )

Returns

first()source public

first( )

firstMatch()source public

firstMatch( array $conditions )

groupBy()source public

groupBy( $callback )

indexBy()source public

indexBy( $callback )

insert()source public

insert( $path , $values )

Returns

isEmpty()source public

isEmpty( )

jsonSerialize()source public

jsonSerialize( )

last()source public

last( )

listNested()source public

listNested( $dir 'desc' , $nestingKey 'children' )

Returns

map()source public

map( callable $c )

Returns

match()source public

match( array $conditions )

max()source public

max( $callback , $type SORT_NUMERIC )

min()source public

min( $callback , $type SORT_NUMERIC )

nest()source public

nest( $idPath , $parentPath , $nestingKey 'children' )

reduce()source public

reduce( callable $c , $zero null )

reject()source public

reject( callable $c )

Returns

sample()source public

sample( $size 10 )

shuffle()source public

shuffle( )

skip()source public

skip( $howMany )

some()source public

some( callable $c )

sortBy()source public

sortBy( $callback , $dir SORT_DESC , $type SORT_NUMERIC )

stopWhen()source public

stopWhen( $condition )

Returns

sumOf()source public

sumOf( $matcher null )

take()source public

take( $size 1 , $from 0 )

through()source public

through( callable $handler )

toArray()source public

toArray( $preserveKeys true )

toList()source public

toList( )

transpose()source public

transpose( )

Returns

unfold()source public

unfold( callable $transformer null )

unwrap()source public

unwrap( )

zip()source public

zip( $items )

zipWith()source public

zipWith( $items , $callable )