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The RecursiveTreeIterator class

(PHP 5 >= 5.3.0, PHP 7)

简介

Allows iterating over a RecursiveIterator to generate an ASCII graphic tree.

类摘要

RecursiveTreeIterator extends RecursiveIteratorIterator implements OuterIterator {

/* 继承的常量 */

const integer RecursiveIteratorIterator::LEAVES_ONLY = 0 ;

const integer RecursiveIteratorIterator::SELF_FIRST = 1 ;

const integer RecursiveIteratorIterator::CHILD_FIRST = 2 ;

const integer RecursiveIteratorIterator::CATCH_GET_CHILD = 16 ;

/* 常量 */

const integer BYPASS_CURRENT = 4 ;

const integer BYPASS_KEY = 8 ;

const integer PREFIX_LEFT = 0 ;

const integer PREFIX_MID_HAS_NEXT = 1 ;

const integer PREFIX_MID_LAST = 2 ;

const integer PREFIX_END_HAS_NEXT = 3 ;

const integer PREFIX_END_LAST = 4 ;

const integer PREFIX_RIGHT = 5 ;

/* 方法 */

public beginChildren ( void ) : void

public beginIteration ( void ) : RecursiveIterator

public callGetChildren ( void ) : RecursiveIterator

public callHasChildren ( void ) : bool

public __construct ( RecursiveIterator|IteratorAggregate $it [, int $flags = RecursiveTreeIterator::BYPASS_KEY [, int $cit_flags = CachingIterator::CATCH_GET_CHILD [, int $mode = RecursiveIteratorIterator::SELF_FIRST ]]] )

public current ( void ) : string

public endChildren ( void ) : void

public endIteration ( void ) : void

public getEntry ( void ) : string

public getPostfix ( void ) : string

public getPrefix ( void ) : string

public key ( void ) : string

public next ( void ) : void

public nextElement ( void ) : void

public rewind ( void ) : void

public setPostfix ( string $postfix ) : void

public setPrefixPart ( int $part , string $value ) : void

public valid ( void ) : bool

/* 继承的方法 */

public RecursiveIteratorIterator::beginChildren ( void ) : void

public RecursiveIteratorIterator::beginIteration ( void ) : void

public RecursiveIteratorIterator::callGetChildren ( void ) : RecursiveIterator

public RecursiveIteratorIterator::callHasChildren ( void ) : bool

public RecursiveIteratorIterator::__construct ( Traversable $iterator [, int $mode = RecursiveIteratorIterator::LEAVES_ONLY [, int $flags = 0 ]] )

public RecursiveIteratorIterator::current ( void ) : mixed

public RecursiveIteratorIterator::endChildren ( void ) : void

public RecursiveIteratorIterator::endIteration ( void ) : void

public RecursiveIteratorIterator::getDepth ( void ) : int

public RecursiveIteratorIterator::getInnerIterator ( void ) : iterator

public RecursiveIteratorIterator::getMaxDepth ( void ) : mixed

public RecursiveIteratorIterator::getSubIterator ([ int $level ] ) : RecursiveIterator

public RecursiveIteratorIterator::key ( void ) : mixed

public RecursiveIteratorIterator::next ( void ) : void

public RecursiveIteratorIterator::nextElement ( void ) : void

public RecursiveIteratorIterator::rewind ( void ) : void

public RecursiveIteratorIterator::setMaxDepth ([ int $max_depth = -1 ] ) : void

public RecursiveIteratorIterator::valid ( void ) : bool

}

预定义常量

RecursiveTreeIterator::BYPASS_CURRENT
RecursiveTreeIterator::BYPASS_KEY
RecursiveTreeIterator::PREFIX_LEFT
RecursiveTreeIterator::PREFIX_MID_HAS_NEXT
RecursiveTreeIterator::PREFIX_MID_LAST
RecursiveTreeIterator::PREFIX_END_HAS_NEXT
RecursiveTreeIterator::PREFIX_END_LAST
RecursiveTreeIterator::PREFIX_RIGHT

RecursiveTreeIterator::beginChildren — Begin children
RecursiveTreeIterator::beginIteration — Begin iteration
RecursiveTreeIterator::callGetChildren — Get children
RecursiveTreeIterator::callHasChildren — Has children
RecursiveTreeIterator::__construct — Construct a RecursiveTreeIterator
RecursiveTreeIterator::current — Get current element
RecursiveTreeIterator::endChildren — End children
RecursiveTreeIterator::endIteration — End iteration
RecursiveTreeIterator::getEntry — Get current entry
RecursiveTreeIterator::getPostfix — Get the postfix
RecursiveTreeIterator::getPrefix — Get the prefix
RecursiveTreeIterator::key — Get the key of the current element
RecursiveTreeIterator::next — Move to next element
RecursiveTreeIterator::nextElement — Next element
RecursiveTreeIterator::rewind — Rewind iterator
RecursiveTreeIterator::setPostfix — Set postfix
RecursiveTreeIterator::setPrefixPart — Set a part of the prefix
RecursiveTreeIterator::valid — Check validity

User Contributed Notes

matthieu88160 13-Feb-2017 12:14


$it = new RecursiveArrayIterator(array(1, 2, array(3, 4, array(5, 6, 7), 8), 9, 10));

$tit = new RecursiveTreeIterator($it);



foreach( $tit as $key => $value ){

    echo $value . PHP_EOL;

}



/* Will output



|-1

|-2

|-Array

| |-3

| |-4

| |-Array

| | |-5

| | |-6

| | \-7

| \-8

|-9

\-10



*/

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The RecursiveTreeIterator class

简介

类摘要

预定义常量

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User Contributed Notes

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