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How to output array in reverse order in php

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2023-04-25 09:20:121090browse

In PHP, you can use the array_reverse function to output the array in reverse order. The array_reverse function returns a new array and reverses the elements in the original array. The first element of the new array is the last element of the original array, and so on.

The following is an example of using the array_reverse function to output the array in reverse order:

$array = array('a', 'b', 'c', 'd', 'e');
$reverseArray = array_reverse($array);
print_r($reverseArray);

The output result is:

Array
(
    [0] => e
    [1] => d
    [2] => c
    [3] => b
    [4] => a
)

In addition to using the array_reverse function, we can also use loops to reverse the array Output in reverse order. In a loop, we can loop from the last element of the array and output each element in turn. The sample code is as follows:

$array = array('a', 'b', 'c', 'd', 'e');
$length = count($array);
for($i = $length-1; $i >= 0; $i--){
    echo $array[$i]." ";
}

The output result is:

e d c b a

Through the above two methods, we can output the array in reverse order in PHP. This is very useful in scenarios where we need to reverse traverse an array, sort it in reverse order, etc.

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