A session in PHP is a way to store information to be used across multiple pages of an entire website. The information is not stored on the user’s computer, unlike cookies. In a temporary directory on the server, a file will be created by the session where registered session variables and their values are stored. … Read more
The main difference between the $message and $$message is given below: $message $$message $message is a regular variable. $$message is a reference variable. It has a fixed name and stores a fixed value. It stores data about the variable. Data stored in $message is fixed. The value of the $$message can change dynamically as the … Read more
Few difference between variables and constants in PHP are given below Variables Constants The value of a variable can be changed during the execution. The constant value can’t be changed during script execution. Variables require compulsory usage of the $ sign at the start. No dollar sign ($) is required before using a constant. It … Read more
Find Factorial of a Number using While Loop Find Factorial of a Number using Recursion in PHP
array_combine() is used to creates a new array by using the key of one array as keys and using the value of another array as values. Whereas array_merge() merges one or more than one array such that the value of second array appended at the end of the first array.
PHP array_key_exists() Function is used to check a key exist or not in an array.
PHP functions for Sorting Arrays are