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How to remove the last element from a php array (two methods)
- PHPzOriginal
- 2023-04-18 15:23:271406browse
In PHP, sometimes we need to delete an element at the end of the array. This operation is very common in array operations. This article will introduce how to use PHP code to remove the last element of an array.
Method 1: Use the array_pop function
The array_pop function in PHP can remove and return the last element in the array. If we only need to remove the last element without returning it, we can use the following code directly:
$array = array(1, 2, 3, 4, 5); array_pop($array);
In this example, we create an array containing 1 to 5 and then remove it using the array_pop function The last element. If we print out this array, we will get the following results:
Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 )
As you can see, the last element has been successfully removed.
Method 2: Use the unset function
The unset function in PHP can also be used to delete elements in an array. Unlike the array_pop function, the unset function can delete elements at any position. If we need to remove the last element from the array, we can use the following code:
$array = array(1, 2, 3, 4, 5); unset($array[count($array) - 1]);
In this example, we use the count function to get the array length, and then delete the last element by array subscript. If we print out this array, we will get the following results:
Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 )
It can also be found that the last element has been successfully removed.
It should be noted that when using the unset function to delete elements of an array, the index values of the array will not be automatically reordered. If we need to reorder the array, we can use the array_values function:
$array = array_values($array);
This function will return a new array in which the elements have been reordered according to the index value.
Summary
This article describes how to use PHP code to remove the last element of an array. We can use the array_pop function or the unset function to implement this function, depending on our specific needs.
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