php教程

SplFixedArray::rewind

(PHP 5 >= 5.3.0, PHP 7)

SplFixedArray::rewindRewind 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)

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