The RecursiveTreeIterator class

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

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 int RecursiveIteratorIterator::LEAVES_ONLY = 0 ;
const int RecursiveIteratorIterator::SELF_FIRST = 1 ;
const int RecursiveIteratorIterator::CHILD_FIRST = 2 ;
const int RecursiveIteratorIterator::CATCH_GET_CHILD = 16 ;
/* 常量 */
const int BYPASS_CURRENT = 4 ;
const int BYPASS_KEY = 8 ;
const int PREFIX_LEFT = 0 ;
const int PREFIX_MID_HAS_NEXT = 1 ;
const int PREFIX_MID_LAST = 2 ;
const int PREFIX_END_HAS_NEXT = 3 ;
const int PREFIX_END_LAST = 4 ;
const int PREFIX_RIGHT = 5 ;
/* 方法 */
public __construct ( RecursiveIterator|IteratorAggregate $iterator , int $flags = RecursiveTreeIterator::BYPASS_KEY , int $cachingIteratorFlags = CachingIterator::CATCH_GET_CHILD , int $mode = RecursiveTreeIterator::SELF_FIRST )
public beginChildren ( ) : void
public beginIteration ( ) : RecursiveIterator
public callGetChildren ( ) : RecursiveIterator
public callHasChildren ( ) : bool
public current ( ) : mixed
public endChildren ( ) : void
public endIteration ( ) : void
public getEntry ( ) : string
public getPostfix ( ) : string
public getPrefix ( ) : string
public key ( ) : mixed
public next ( ) : void
public nextElement ( ) : void
public rewind ( ) : void
public setPostfix ( string $postfix ) : void
public setPrefixPart ( int $part , string $value ) : void
public valid ( ) : bool
/* 继承的方法 */
public RecursiveIteratorIterator::beginChildren ( ) : void
public RecursiveIteratorIterator::beginIteration ( ) : void
public RecursiveIteratorIterator::callGetChildren ( ) : RecursiveIterator|null
public RecursiveIteratorIterator::callHasChildren ( ) : bool|null
public RecursiveIteratorIterator::current ( ) : mixed
public RecursiveIteratorIterator::endChildren ( ) : void
public RecursiveIteratorIterator::endIteration ( ) : void
public RecursiveIteratorIterator::getDepth ( ) : int
public RecursiveIteratorIterator::getInnerIterator ( ) : RecursiveIterator
public RecursiveIteratorIterator::getMaxDepth ( ) : int|false
public RecursiveIteratorIterator::getSubIterator ( int|null $level = null ) : RecursiveIterator|null
public RecursiveIteratorIterator::key ( ) : mixed
public RecursiveIteratorIterator::next ( ) : void
public RecursiveIteratorIterator::nextElement ( ) : void
public RecursiveIteratorIterator::rewind ( ) : void
public RecursiveIteratorIterator::setMaxDepth ( int $maxDepth = -1 ) : void
public RecursiveIteratorIterator::valid ( ) : 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

Table of Contents

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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