Reverse an array using PHP's array_reverse() function

Use PHP's array_reverse() function to reverse an array

In PHP, you can use the array_reverse() function to reverse the order of the elements of an array. This function accepts an array as a parameter and returns a new array whose elements are the reverse order of the elements in the original array.

The following is a specific example code using the array_reverse() function:

In the above code, we first define an array named $numbers, which contains some integers. We then reverse the $numbers array using the array_reverse() function and store the result in a new array called $reversedNumbers. Finally, we use the print_r() function to print out the $reversedNumbers array.

Run the above code and you will get the following output:

Array ( [0] => 5 [1] => 4 [2] => 3 [3] => 2 [4] => 1 )

You can see that the output result is a new array in which the elements in the original array $numbers are arranged in reverse order.

The array_reverse() function can be used not only for ordinary index arrays, but also for associative arrays. The following is a sample code that uses the array_reverse() function to reverse an associative array:

 '苹果', 'banana' => '香蕉', 'orange' => '橙子' ); // 使用array_reverse()函数反转关联数组 $reversedFruits = array_reverse($fruits); // 输出反转后的关联数组 print_r($reversedFruits); ?>

Run the above code, you will get the following output:

Array ( [orange] => 橙子 [banana] => 香蕉 [apple] => 苹果 )

You can see that the output result is the original associative array A new array of key-value pairs in $fruits sorted in reverse order.

Summary: Use PHP's array_reverse() function to conveniently reverse the order of elements in an array. Whether it is an indexed array or an associative array, the array_reverse() function can handle it correctly. Simply pass the array to be reversed as a parameter to the array_reverse() function and store the returned result in a new array to achieve the array reversal function.

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