PHP how to point the internal pointer of an array to the last cell

php editor Xiaoxin will introduce to you how to point the internal pointer of the array to the last unit. In PHP, you can use the end() function to move the internal pointer of an array to the last cell, and then use the current() function to get the value of that cell. This makes it easy to access the last element in the array without having to iterate through the entire array. This method is simple and efficient, and is suitable for situations where direct access to the last element is required.

In php, you can use the end() function to point the internal pointer of the array to the last element. end() The function returns the last value in the array and points the internal pointer to the unit.

grammar

end(array);

parameter

parameter	describe
array	Array to be operated

return value

return value	describe
Mixed	The last value in the array

Example

<?php

$fruits = ["apple", "banana", "cherry"];

// Set the internal pointer to the last unit
end($fruits);

// Get the value of the last cell
$last_fruit = current($fruits);

echo "Last fruit: $last_fruit";

?>

Output

The last fruit: cherry

Notice

• If the array is empty, the end() function will return NULL.
• end() The function does not change the array itself, it only affects the position of the internal pointer.
• To get the last value of an array without changing the internal pointer, you can use the last() function as follows:

$last_fruit = last($fruits);

Advanced usage

In addition to pointing the internal pointer to the last unit, the end() function can also be used in conjunction with other functions to achieve more advanced functions. For example:

• Get the key name of the array: You can use the key() function to get the key name of the current unit, as shown below:

$last_key = key($fruits);

• Reset the internal pointer: You can use the reset() function to reset the internal pointer to the first element of the array, as follows:

reset($fruits);

• Iterate from the current unit: You can use the each() function to iterate the array starting from the current unit, as shown below:

while (each($fruits)) {
// Process the current unit
}

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