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The php reset() function pointer points to the first element in the array and outputs the example code

高洛峰
高洛峰Original
2016-12-30 11:32:591226browse

The reset function points the internal pointer of the array to the first unit and outputs the array.

Basic syntax

reset(array)

reset() Rewinds the internal pointer of array to the first element and returns the value of the first array element value.

Parameter introduction:

php reset() 函数指针指向数组中的第一个元素并输出实例代码

Return value

Returns the value of the first unit of the array, or returns FALSE if the array is empty.

Example

<?php
 
$array = array(&#39;step one&#39;, &#39;step two&#39;, &#39;step three&#39;, &#39;step four&#39;);
 
// 数组默认指针指向第一个元素
echo current($array)."<br />"; 
 
// 将指针指向下一个元素
next($array);
next($array);
echo current($array)."<br />"; 
 
// 将指针指向重新指向第一个元素
reset($array);
echo current($array)."<br />"; 
?>

Run result:

step one
step three
step one

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