Declare

To declare something in PHP means to introduce it to the interpreter, usually by creating a new variable or defining a new function or class.

Here are some examples of declaring variables in PHP:

$name = "John";  // declares a new string variable called $name and assigns it the value "John"
$age = 30;  // declares a new integer variable called $age and assigns it the value 30
$employee = true;  // declares a new boolean variable called $employee and assigns it the value true

Here is an example of declaring a function in PHP:

function sayHello($name) {
 echo "Hello, $name!";
}

And here is an example of declaring a class in PHP:

class Person {
 public $name;
 public $age;
 
 public function __construct($name, $age) {
   $this->name = $name;
   $this->age = $age;
 }
 
 public function sayHello() {
   echo "Hello, my name is $this->name and I am $this->age years old.";
 }
}

Declaring variables, functions, and classes is an important part of writing PHP code, as it allows you to use and manipulate these entities in your scripts.