The ArrayIterator class

(PHP 5, PHP 7)

简介

这个迭代器允许在遍历数组和对象时删除和更新值与键

当你想多次遍历相同数组时你需要实例化ArrayObject，然后让这个实例创建一个ArrayIteratror实例当你想遍历相同数组时多次你需要实例ArrayObject并且让这个实例创建一个ArrayIteratror实例，然后使用foreach或者手动调用getIterator()方法

ArrayIterator implements ArrayAccess , SeekableIterator , Countable , Serializable {

/* 方法 */

public void append ( mixed $value )

public void asort ( void )

public __construct ([ mixed $array = array() [, int $flags = 0 ]] )

public int count ( void )

public mixed current ( void )

public array getArrayCopy ( void )

public void getFlags ( void )

public mixed key ( void )

public void ksort ( void )

public void natcasesort ( void )

public void natsort ( void )

public 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 )

public void rewind ( void )

public 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 )

public bool valid ( void )

}