Iterators
PHP Manual

The ArrayIterator class

简介

This iterator allows to unset and modify values and keys while iterating over Arrays and Objects.

When you want to iterate over the same array multiple times you need to instantiate ArrayObject and let it create ArrayIterator instances that refer to it either by using foreach or by calling its getIterator() method manually.

类摘要

ArrayIterator implements Iterator , Traversable , ArrayAccess , SeekableIterator , Countable {
/* 方法 */
public void append ( mixed $value )
public void asort ( void )
__construct ( mixed $array )
public int count ( void )
mixed current ( void )
public array getArrayCopy ( void )
public void getFlags ( void )
mixed key ( void )
public void ksort ( void )
public void natcasesort ( void )
public void natsort ( void )
void next ( void )
public void offsetExists ( string $index )
public mixed offsetGet ( string $index )
public void offsetSet ( string $index , string $newval )
public void offsetUnset ( string $index )
void rewind ( void )
void seek ( int $position )
public string serialize ( void )
public void setFlags ( string $flags )
public void uasort ( string $cmp_function )
public void uksort ( string $cmp_function )
public string unserialize ( string $serialized )
bool valid ( void )
}

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Iterators
PHP Manual