How to find the value of the last element of an array in php

5 methods: 1. Use the "array_pop($arr)" statement to delete the last element of the array and return the value; 2. Use the "end($arr)" statement to return the value of the last element; 3. , Use the "array_slice($arr,-1)" statement to intercept the last 1 element of the array; 4. Use the "array_splice($arr,-1)" statement to delete the last element and return the element value; 5. Use "$arr[ count($arr)-1]" statement returns the last element.

The operating environment of this tutorial: windows7 system, PHP8.1 version, DELL G3 computer

php gets the final array One-digit element value method

1. Use array_pop() function

array_pop() function will delete the last element in the array. and returns the deleted element.

<?php
header("Content-type:text/html;charset=utf-8");
$arr= array("香蕉","苹果","梨子","橙子","橘子","榴莲");
var_dump($arr);
//获取数组中的第一个元素
$first = array_pop($arr);
echo "数组的最后一个元素为：".$first;
?>

2. Use the end() function

end() function to point the pointer inside the array to the last one of the array element and returns the value of the last element, or FALSE if the array is empty.

<?php
header("Content-type:text/html;charset=utf-8");
$arr= array("香蕉"=>"3元","苹果"=>"5元","梨子"=>"6元","橙子"=>"4元","橘子"=>"3元","榴莲"=>"23元");
var_dump($arr);
//获取数组中的第一个元素
$last = end($arr);
echo "数组最后一个元素的键名和键值：".key($arr)." ".$last;
?>

3. Use the array_slice() function

If you want to intercept the last few elements of the array, just set the parameter start For -1

<?php
header("Content-type:text/html;charset=utf-8");
$arr = array(10,12,20,25,24);
echo "原数组：";
var_dump($arr); 

echo "截取最后一位元素：";
$result = array_slice($arr,-1); //截取数组后2位的元素
var_dump($result);
?>

4, use the array_splice() function

array_splice() function to delete When a part of the array is removed, the deleted elements will be formed into a new array, and then the new array will be returned; therefore, the array_splice() function can be used to intercept array fragments.

Same as the array_slice() function, just set the second parameter start of the function to -1 to intercept the last element.

<?php
header("Content-type:text/html;charset=utf-8");
$arr = array(10,12,20,25,24);
echo "原数组：";
var_dump($arr); 

echo "截取最后一位元素：";
$result = array_splice($arr,-1); 
var_dump($result);
?>

5. Use array name[subscript] to access the last array element

subscript The value needs to be set to array length-1, that is, count($arr)-1

<?php
header("Content-type:text/html;charset=utf-8");
$arr = array(10,12,20,25,24);
var_dump($arr); 
echo "最后一个元素：".$arr[count($arr)-1];
?>

Note: This method Can only be used in indexed arrays.

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