PHP – include_once Keyword
The PHP include_once keyword is used to embed PHP code from another file. If the file is not found, a warning is shown and the program continues to run.
PHP – instanceof Keyword
The PHP instanceof keyword is used to check if an object belongs to a class, and returns true if the object is an instance of the class or false if not.
PHP – insteadof Keyword
The PHP insteadof keyword allows you to select from which trait a method should be taken if more than one trait has a method with the same name.
PHP – interface Keyword
The PHP interface keyword is used to create interfaces, which is a structure which defines a list of methods that must exist in a class.
PHP – namespace Keyword
The PHP namespace keyword is used to declare in which namespace a PHP file is operating.
PHP – or Keyword
The PHP or keyword is a logical operator. The return value will be true if any one of the statements returns true, otherwise it will return false.
PHP – print Keyword
The PHP print keyword is used to output text. Unlike echo, print can only output one string at a time.
PHP – private Keyword
The PHP private keyword is an access modifier that marks a property or method as private.
PHP – protected Keyword
The PHP protected keyword is an access modifier. It marks a property or method as protected.
PHP – public Keyword
The PHP public keyword is an access modifier, and marks a property or method as public (meaning it can be used by any code that can access the object).
PHP – require Keyword
The PHP require keyword is used to embed PHP code from another file. If the file is not found, a fatal error is thrown and the program stops.
PHP – require_once Keyword
The PHP require_once keyword is used to embed PHP code from another file.
PHP – return Keyword
The PHP return keyword ends a function and uses the result of an expression as the return value of the function.
PHP – static Keyword
The PHP static keyword is used to declare properties and methods of a class as static (can be used without creating an instance of the class).
PHP – switch Keyword
The PHP switch keyword is used to create a switch conditional, which choose a block of code to run based on the value of an expression.
PHP – throw Keyword
The PHP throw keyword is used to throw exceptions to change the program flow if an unexpected situation arises, such as invalid data.
PHP – trait Keyword
The PHP trait keyword is used to create traits, which are a way to allow classes to inherit multiple behaviors.
PHP – try Keyword
The PHP try keyword is used to create a try…catch, or a try…catch…finally statement.
PHP – use Keyword
The PHP use keyword tells a class to inherit a trait and it gives an alias to a namespace.