PHP Functions

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PHP Functions

PHP Functions:

In PHP a function is a predefined set of commands that are carried out when the function is called. In addition to being able to write your own functions, PHP has a number of predefine functions for you to use. Below are many functions we discuss in our various tutorials, with simple definitions and examples to follow.

Abs () PHP Function:

Examples:
    <?php
    abs (-6) ;
    //returns a value of 6

    abs (12.4) ;
    //returns a value of 12.4

    abs (-456.2) ;
    // returns a value of 456.2
    ?>