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PHP data types are used to hold different types of data or values. PHP supports the following data types:

• String
• Integer
• Float
• Boolean
• Array
• Object
• NULL
• Resource

PHP String

A string is a sequence of characters, like "Hello world!".

A string can be any text inside quotes. You can use single or double quotes:

Example code:

<?php

$x = "Hello world!";
$y = 'Hello world!';

echo $x;
echo "<br>";
echo $y;

?>

Output:

The above code will produce the following result-

Hello world!
Hello world!

PHP Resource

The special resource type is not an actual data type. It is the storing of a reference to functions and resources external to PHP.

A common example of using the resource data type is a database call.

We will talk about the resource type in advanced topic.

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