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"PHP8 Beginner's Guide" A brief introduction to PHP

2022-08-05 05:11:00 【Sun Wenwen】

Id = "article_content" < td>< p data - track=1>< span style="letter - spacing: 1 px;">< strong> what is PHP < / strong>< / span>< / p>< p data - track=2>< span style="letter - spacing: 1 px;"> PHP (" PHP: Hypertext Preprocessor ", Hypertext Preprocessor acronym) is a kind of widely used open source multi-purpose scripting language, it can be embedded into HTML, especially suited for web development.< / span>< / p>< p data - track=4>< span style="letter - spacing: 1 px;"> here is a simple code examples: < / span>< / p>< pre>< code> & lt;!DOCTYPE html><html><head><title>Example</title></head><body><?PHP echo "Hi, I 'm a PHP script!";?></body></html>< / code>< / pre>< p data - track=6>< span style="letter - spacing: 1 px;"> please note that this example and other written in C or Perl language script - and use of the difference between a large number of commands to write a program to output HTML, PHP page's HTML, but in some embedded in the code to do something (in this case, output "Hi, I 'm a PHP script!").The PHP code is included at the start of a special character and terminators & lt;?PHP and?>Allows in and out of "PHP mode".< / span>< / p>< p data - track=7>< span style="letter - spacing: 1 px;"> and client-side JavaScript, PHP code is running on the server.If similar code in the example above is set up on the server, after running the script, the client can receive the result, but they don't know how the code behind the work.Even the web server can be set to make PHP to handle all HTML file, so that the user will not be able to know what did the service side.< / span>< / p>< p data - track=8>< span style="letter - spacing: 1 px;"> the biggest benefit of using PHP is that it is easy for beginners and also provide professional programmers with various advanced features.When he saw the PHP long feature list, please don't be afraid.Can quickly entry, just a few hours can write their own simple scripts.< / span>< / p>< p data - track=9>< span style="letter - spacing: 1 px;"> although the development of PHP is a server-side script for the purpose, but in fact its function far beyond this.< / span>< / p>< p data - track=10>< br>< / p>< p data - track=11>< span style="letter - spacing: 1 px;">< strong> PHP can do < / strong>< / span>< / p>< p data - track=12>< span style="letter - spacing: 1 px;"> PHP can do anything.PHP is mainly used in the server-side script, so you can use PHP to complete any other CGI program can do work, such as collect form data, generate dynamic web pages, or send/receive Cookies.But the PHP function far beyond this.< / span>< / p>< p data - track=14>< span style="letter - spacing: 1 px;">< strong> PHP script is mainly used in the following three areas: < / strong>< / span>< / p>
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