I want to use the php simple HTML DOM parser to grab the image, title, date, and description from each article on a page full of articles. Call a Function. Passing an argument by reference is done by prepending an ampersand (&) to the argument name in the function definition, as shown in the example below: However, you can declare the variables anywhere in a PHP script. Like with the type declaration for function arguments, by enabling the strict requirement, it will throw a "Fatal We will be implementing recursion in PHP using the function. A function can not return multiple values. In the following example we try to send both a number and a string to the Following example creates a function called writeMessage() and then calls it just after creating it. In all programming and scripting language, a function is a block of statements that can be used repeatedly in a program. This example calls the fullName method of person, using it on person1: With call (), an object can use a method belonging to another object. * * @param mixed $var Var * @return bool */ function is_callback ($var) { if (is_array ($var) && count ($var) == 2) { $var = array_values ($var); call_user_func took 0.049713 seconds. It's logical (and perfectly legal in PHP) to define B inside of A's definition, like so: You can call this function "anywhere" in your php code as