Search code snippets, questions, articles... Chrome Extension

Variable and data type in PHP

    $var_name = "hello world"; //DEFINE A VARIABLE
    $string_type = "I am a string"; //STRING DATA TYPE
    $int_type = 10; //INT DATA TYPE
    $double_type = 1.5; //DOUBLE DATA TYPE
    $array = array("name" => "John"); //ARRAY DATA TYPE
    $array = ["name" => "John"]; //ANOTHER WAY TO DEFINE ARRAY DATA TYPE
    $bool_type = true; //BOOL DATA TYPE
    $null_type = null; //NULL DATA TYPE
Best JSON Validator, JSON Tree Viewer, JSON Beautifier at same place. Check how cool is the tool

Variables are used as containers to keep data in PHP. You can define a variable in PHP by placing the '$' keyword before the variable name. The data types that are used in PHP are

String: String data type is a series of characters that are assigned to a variable. You can make a variable string type by assigning a string value to it. For example below are the examples of correct string data format.

    $str = "This is a string";
    $str = "123456";

INT: You can make a variable int type by assigning a number to it. You can perform mathematical operations to int type variables in PHP. An example of an int data type variable is

    $my_number = 20;

Double: To make a variable double type in PHP simply assign a float value to it as below example

   $my_float = 1.434;

Array: Arrays can hold a large number of data sets and can be retrieved by index or index name. You can define a variable which contains an array as below:

   $my_array = array("hello", "world")
Was this helpful?
Join Devsheet Ask a Question