The usage of custom functions in the PHP Getting Started Tutorial (create, call, variable, parameter, return value, etc)

This article mainly introduces the usage of user-defined functions in the PHP Getting Started Tutorial, this article analyzes php's skills on creating, returning values, parameters, calling methods, and using global variables and magic constants based on examples, for more information about PHP user-defined functions, see the following example. We will share this with you for your reference. The details are as follows:

Demo1.php

 '; Echo sha1 ('000000'); echo' who asked Junyi. ';?>

Demo2.php

Demo3.php

Demo4.php

Demo5.php

Demo6.php

Demo7.php

 '; Echo $ tax; // 0.25 echo'
';} FunctionPrices ($ prices, $ tax); // reference this concept, which we cannot grasp at present. we will focus on echo $ prices in OOP; // pass 50 by Value and Change to 75 echo by reference'
'; Echo $ tax;?>

Demo8.php

Demo9.php

Demo10.php

Demo11.php

 Who asked Junyi.'?>

Demo12.php

 '; Echo ffff () ;?>

I hope this article will help you with PHP programming.

For more information about how to use custom functions (create, call, variable, parameter, return value, etc.) in the PHP Getting Started Tutorial, please follow the PHP Chinese web!