array_reverse

PHP array_reverse()函數(shù) (PHP array_reverse() function)

array_reverse() function is used to returns an array in reverse order, it accepts an array and returns a new array with values in reverse order.

array_reverse()函數(shù)用于以相反的順序返回?cái)?shù)組，它接受一個(gè)數(shù)組并以相反的順序返回帶有值的新數(shù)組。

Syntax:

句法：

array_reverse(array, [preserve]);

Here,

這里，

• array is an array.

  數(shù)組是一個(gè)數(shù)組。

• preserve is an optional parameter and its default value is false, it is used to define whether we want to preserve the keys or not. If it sets to true – keys will also be reversed.

  keep是一個(gè)可選參數(shù)，其默認(rèn)值為false ，它用于定義我們是否要保留鍵。 如果設(shè)置為true –按鍵也將反轉(zhuǎn)。

Examples:

例子：

Input:$arr1 = array(10, 20, 30, 40, 50);Output:Array([0] => 50[1] => 40[2] => 30[3] => 20[4] => 10)

PHP code 1:

PHP代碼1：

<?php$arr1 = array(10, 20, 30, 40, 50);$arr2 = array("name" => "Amit", "age" => 21, "gender" => "Male");//printing array in reverse orderprint_r (array_reverse($arr1));print_r (array_reverse($arr2)); ?>

Output

輸出量

Array ([0] => 50[1] => 40[2] => 30[3] => 20[4] => 10 ) Array ([gender] => Male[age] => 21[name] => Amit )

PHP code 2:

PHP代碼2：

<?php$arr = array(10, 20, 30, 40, 50);//printing array in reverse orderprint_r (array_reverse($arr));print_r (array_reverse($arr, true)); ?>

Output

輸出量

Array ( [0] => 50[1] => 40[2] => 30[3] => 20[4] => 10 ) Array ( [4] => 50[3] => 40[2] => 30[1] => 20[0] => 10 )

翻譯自: https://www.includehelp.com/php/array_reverse-function-with-example.aspx

array_reverse

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