How to Reverse an Array in PHP


How to Reverse an Array in PHP ?

Answer

To reverse an array in PHP, you can use the built-in `array_reverse()` function.



✐ Examples

1 Reverse Array of Integers

In this example,

  1. We have an array named $intArray containing integers.
  2. We use the array_reverse() function on $intArray to reverse its elements.
  3. We print both arrays to demonstrate the reversal.

PHP Program

<?php
$intArray = [1, 2, 3, 4, 5];
$reversedArray = array_reverse($intArray);
echo 'Original Array: ' . json_encode($intArray) . "\n";
echo 'Reversed Array: ' . json_encode($reversedArray) . "\n";
?>

Output

Original Array: [1,2,3,4,5]
Reversed Array: [5,4,3,2,1]

2 Reverse Array of Strings

In this example,

  1. We have an array named $strArray containing strings.
  2. We use the array_reverse() function on $strArray to reverse its elements.
  3. We print both arrays to demonstrate the reversal.

PHP Program

<?php
$strArray = ['apple', 'banana', 'cherry'];
$reversedArray = array_reverse($strArray);
echo 'Original Array: ' . json_encode($strArray) . "\n";
echo 'Reversed Array: ' . json_encode($reversedArray) . "\n";
?>

Output

Original Array: ['apple','banana','cherry']
Reversed Array: ['cherry','banana','apple']

Summary

In this tutorial, we learned How to Reverse an Array in PHP language with well detailed examples.




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  2. How to Initialize an Array in PHP ?
  3. How to Access Array Elements in PHP ?
  4. How to Access Array Elements using Index in PHP ?
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  12. How to Iterate Over an Array in Reverse Order in PHP ?
  13. How to get the Index of Specified Element in an Array in PHP ?
  14. How to check if Specified Element is present in the Array in PHP ?
  15. How to count the Number of Occurrences of Specified Element in the Array in PHP ?
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  20. How to Iterate over a Two Dimensional Array in PHP ?
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  25. How to check if Two Arrays are Equal in PHP ?
  26. How to check if Two Arrays have Same Elements (Regardless of Order) in PHP ?
  27. How to Convert an Array of Integers to an Array of Strings in PHP ?
  28. How to Convert an Array of Strings to an Array of Integers in PHP ?
  29. How to Reverse an Array in PHP ?
  30. How to Shuffle an Array in PHP ?
  31. How to Rotate Elements in an Array in PHP ?
  32. How to Filter Elements of an Array based on a Condition in PHP ?
  33. How to Declare an Integer Array in PHP ?
  34. How to Declare a Float Array in PHP ?
  35. How to Declare a String Array in PHP ?
  36. How to Remove Duplicates in an Array in PHP ?
  37. How to Remove Specific Element from an Array in PHP ?
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