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The roles of PHP functions and HTML functions are different: PHP handles background logic and outputs results through echo or print; HTML is responsible for creating the web page structure, which is interpreted and displayed by the browser. The similarities and differences are as follows: Execution location: PHP functions are executed on the server side, and HTML functions are executed on the client browser. Usage: PHP functions are embedded in PHP code, and HTML functions are written in HTML documents. Data types: PHP functions can handle different data types, while HTML functions mainly handle text data. Purpose: PHP functions are used to calculate, process data and generate dynamic content, and HTML functions are used to define the structure and style of web pages.
PHP functions and HTML functions: similarities and differences
Introduction
PHP functions and HTML functions play different roles in web development, and it is important to understand their similarities and differences.
PHP functions
echo
or print
Statement output resultecho "Hello World!";
##HTML function
similarities and differences
Same points:
Differences:
PHP function | HTML function | |
---|---|---|
Server side | Client side (browser) | |
Embedded in PHP code | Write In HTML documents | |
can handle different types of data | Mainly process text data | |
Complete calculations, process data, and generate dynamic content | Define web page structure and style |
Practical case
PHP function:
<?php // 计算两个数的和 function sum($num1, $num2) { return $num1 + $num2; } // 输出和 echo sum(10, 20); ?>
HTML function:
<!DOCTYPE html> <html> <body> <h1>Hello World!</h1> </body> </html>
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