Magic constants are the predefined constants in PHP which get changed on the basis of their use. They start with double underscore (__) and ends with double underscore. They are similar to other predefined constants but as they change their ...
PHP constants are name or identifier that can’t be changed during the execution of the script except for magic constants, which are not really constants. PHP constants can be defined by 2 ways: Constants are similar to the variable except ...
The $var (single dollar) is a normal variable with the name var that stores any value like string, integer, float, etc. $$var To understand the difference better, let’s see some examples. Example 1 Output: In the above example, we have ...
In PHP, a variable is declared using a $ sign followed by the variable name. Here, some important points to know about variables: As PHP is a loosely typed language, so we do not need to declare the data types ...
We frequently use the echo statement to display the output. There are two basic ways to get the output in PHP: echo print echo and print are language constructs, and they never behave like a function. Therefore, there is no ...
Like PHP echo, PHP print is a language construct, so you don’t need to use parenthesis with the argument list. Print statement can be used with or without parentheses: print and print(). Unlike echo, it always returns 1. The syntax ...
PHP echo is a language construct, not a function. Therefore, you don’t need to use parenthesis with it. But if you want to use more than one parameter, it is required to use parenthesis. The syntax of PHP echo is ...
Generally, a PHP file contains HTML tags and some PHP scripting code. It is very easy to create a simple PHP example. To do so, create a file and write HTML tags + PHP code and save this file with ...
To install PHP, we will suggest you to install AMP (Apache, MySQL, PHP) software stack. It is available for all operating systems. There are many AMP options available in the market that are given below: WAMP for Windows LAMP for ...
PHP tutorial for beginners and professionals provides in-depth knowledge of PHP scripting language. Our PHP tutorial will help you to learn PHP scripting language easily. This PHP tutorial covers all the topics of PHP such as introduction, control statements, functions, ...