SplFixedArray::rewind

(PHP 5 >= 5.3.0, PHP 7)

SplFixedArray::rewind — Rewind iterator back to the start

说明

public SplFixedArray::rewind ( void ) : void

Rewinds the iterator to the beginning.

参数

此函数没有参数。

返回值

没有返回值。

User Contributed Notes

kishor10d at gmail dot com 12-Jun-2019 05:13


<?php



/**

 * Example : rewind();

 */



$arr = new SplFixedArray(5);



$arr[1] = 2;

$arr[4] = "foo";



$a = $arr->key();

var_dump($a);

echo "<br>";



$arr->next();

$a = $arr->key();

var_dump($a);

echo "<br>";



$arr->next();

$a = $arr->key();

var_dump($a);

echo "<br>";



$arr->rewind();

$a = $arr->key();

var_dump($a);

echo "<br>";

?>



The above example will output:



int(0) 

int(1) 

int(2) 

int(0)