In this article, you will learn how to include PHP scripts from external files. The PHP include_once keyword is used to embed PHP script from an external PHP file. If the file does not exist, it will show a warning however, the program will execute successfully. If the file is already included, this statement will …
In this article, you will learn how to check the class of an object in PHP. ThThe instanceof keyword in PHP is used to check if an object belongs to a class. The comparison returns true if the object is an instance of the class, it returns false if it is not. examples of the …
In this article, you will learn how to select the trait method to execute in PHP. The insteadof keyword in PHP allows you to select from which trait a method should be taken if more than one trait has a method with the same name. examples of the INSTEADOF function Example 1. In this example, …
In this article, you will learn how to create an interface class in PHP. The interface keyword in PHP is used to create interfaces. The implements keyword is used to use interface with the class. examples of the INTERFACE function Example 1. In this example, we create and implement an interface.
In this article, you will learn how to check if a variable is empty or not. The isset() function checks whether a variable is set, which means that it has to be declared and is not NULL. This function returns true if the variable exists and is not NULL, otherwise it returns false. what is …
In this article, you will learn how to assign array values to the variables in PHP. The list keyword in PHP assigns elements of an array to a list of variables. If there are not enough elements in the array it will output a notice and assign null to the remaining variables. examples of the …
In this article, you will learn about namespace keyword in PHP. The namespace keyword in PHP is used to declare in which namespace a PHP file is operating. Namespaces prevent conflicts between classes that have the same name and can be used to organize code by grouping related classes together. examples of the NAMESPACE function …
In this article, you will learn how to create a new object in PHP. The new keyword in PHP is used to create an object from a class. examples of the NEW function Example 1. In this example, we create an object and output the value of one of its properties.
In this article, you will learn about OR keywords in PHP. The return value will be true if any one of the statements returns true, otherwise, it will return false. examples of the OR function Example 1. In this example, we return true if at least one of the statements is true.
In this article, you will learn how to print output in PHP. The print keyword in PHP is used to output text. Print can only output one string at a time. examples of the PRINT function Example 1. In this example, we output some text.
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