How To Use an Array as a Stack

Q

How To Use an Array as a Stack? - PHP Script Tips - PHP Built-in Functions for Arrays

✍: FYIcenter.com

A

A stack is a simple data structure that manages data elements following the first-in-last-out rule. You use the following two functions together to use an array as a stack:

array_push($array, $value) - Pushes a new value to the end of an array. The value will be added with an integer key like $array[]=$value.
array_pop($array) - Remove the last value from the array and returns it.

Here is a PHP script on how to use an array as a queue:

<?php
$waitingList = array();
array_push($waitingList, "Jeo");
array_push($waitingList, "Leo");
array_push($waitingList, "Kim");
$next = array_pop($waitingList);
array_push($waitingList, "Kia");
$next = array_pop($waitingList);
array_push($waitingList, "Sam");
print("Current waiting list:\n");
print_r($waitingList);
?>

This script will print:

Current waiting list:
Array
(
    [0] => Jeo
    [1] => Leo
    [2] => Sam
)

2007-04-21, 5769👍, 0💬

How To Use an Array as a Queue
How To Use an Array as a Queue? - PHP Script Tips - PHP Built-in Functions for Arrays A queue is a simple data structure that manages data elements following the first-in-first-out rule. You use the following two functions together to use an array as a queue: array_push($array, $value) - Pushes a ne... 2007-04-21, 9394👍, 0💬

How To Truncate an Array
How To Truncate an Array? - PHP Script Tips - PHP Built-in Functions for Arrays If you want to remove a chunk of values from an array, you can use the array_splice($array, $offset, $length) function. $offset defines the starting position of the chunk to be removed. If $offset is positive, it is coun... 2007-04-21, 8691👍, 0💬

How To Join a List of Keys with a List of Values into an Array
How To Join a List of Keys with a List of Values into an Array? - PHP Script Tips - PHP Built-in Functions for Arrays If you have a list keys and a list of values stored separately in two arrays, you can join them into a single array using the array_combine() function. It will make the values of the... 2007-04-21, 7539👍, 0💬

How To Sort an Array by Values
How To Sort an Array by Values? - PHP Script Tips - PHP Built-in Functions for Arrays Sorting an array by values is doable by using the sort() function. It will re-order all pairs of keys and values based on the alphanumeric order of the values. Then it will replace all keys with integer keys sequen... 2007-04-21, 6120👍, 0💬

How To Randomly Retrieve a Value from an Array
How To Randomly Retrieve a Value from an Array? - PHP Script Tips - PHP Built-in Functions for Arrays If you have a list of favorite greeting messages, and want to randomly select one of them to be used in an email, you can use the array_rand() function. Here is a PHP example script: <?php $a... 2007-04-21, 6076👍, 0💬

How To Create an Array with a Sequence of Integers or Characters
How To Create an Array with a Sequence of Integers or Characters? - PHP Script Tips - PHP Built-in Functions for Arrays The quickest way to create an array with a sequence of integers or characters is to use the range() function. It returns an array with values starting with the first integer or cha... 2007-04-21, 5957👍, 0💬

How To Pad an Array with the Same Value Multiple Times
How To Pad an Array with the Same Value Multiple Times? - PHP Script Tips - PHP Built-in Functions for Arrays If you want to add the same value multiple times to the end or beginning of an array, you can use the array_pad($array, $new_size, $value) function. If the second argument, $new_size, is pos... 2007-04-21, 5841👍, 0💬

How To Use an Array as a Stack
How To Use an Array as a Stack? - PHP Script Tips - PHP Built-in Functions for Arrays A stack is a simple data structure that manages data elements following the first-in-last-out rule. You use the following two functions together to use an array as a stack: array_push($array, $value) - Pushes a new... 2007-04-21, 5770👍, 0💬

How To Sort an Array by Keys
How To Sort an Array by Keys? - PHP Script Tips - PHP Built-in Functions for Arrays Sorting an array by keys can be done by using the ksort() function. It will re-order all pairs of keys and values based on the alphanumeric order of the keys. Here is a PHP script on how to use ksort(): <?php ... 2007-04-21, 5735👍, 0💬

All rights in the contents of this web site are reserved by the individual author. fyicenter.com does not guarantee the truthfulness, accuracy, or reliability of any contents.