PHP: Difference between revisions
No edit summary |
Marked this version for translation |
||
| Line 1: | Line 1: | ||
<languages /><translate>'''PHP''' stands for '''Ph'''antastic '''P'''rogramming. You can use it to make things happen on pages. | <languages /><translate><!--T:1--> | ||
'''PHP''' stands for '''Ph'''antastic '''P'''rogramming. You can use it to make things happen on pages. | |||
<!--T:2--> | |||
It's different from JavaScript because JavaScript runs in your browser and PHP runs somewhere else I don't know where.They won't tell me where it runs. | It's different from JavaScript because JavaScript runs in your browser and PHP runs somewhere else I don't know where.They won't tell me where it runs. | ||
<!--T:3--> | |||
== Having a PHP == | == Having a PHP == | ||
You can make a php script by calling it <code>something.php</code>. It's a good idea to actually call it <code>something/index.php</code> so the URL remains the same if you decide to stop using PHP (a wise choice). | You can make a php script by calling it <code>something.php</code>. It's a good idea to actually call it <code>something/index.php</code> so the URL remains the same if you decide to stop using PHP (a wise choice). | ||
<!--T:4--> | |||
== Writing a PHP == | == Writing a PHP == | ||
You can write a PHP script like this: | You can write a PHP script like this: | ||
| Line 12: | Line 16: | ||
There's a pretty okay guide on the [https://www.php.net/manual/en/langref.php PHP website]. | There's a pretty okay guide on the [https://www.php.net/manual/en/langref.php PHP website]. | ||
<!--T:5--> | |||
The <code><?php</code> bit tells PHP you're about to write some PHP. You can stop writing PHP and start writing HTML with <code>?></code>. | The <code><?php</code> bit tells PHP you're about to write some PHP. You can stop writing PHP and start writing HTML with <code>?></code>. | ||
<!--T:6--> | |||
Sometimes you'll want to insert some values from PHPland into your HTML, which you can do like this: | Sometimes you'll want to insert some values from PHPland into your HTML, which you can do like this: | ||
<?php | <?php | ||
| Line 23: | Line 29: | ||
<nowiki></p></nowiki> | <nowiki></p></nowiki> | ||
<!--T:7--> | |||
Note that if you're rendering user input in this way, you should wrap it in the <code>[https://www.php.net/manual/en/function.htmlspecialchars.php htmlspecialchars]</code> function, lest you become vulnerable to an [[wikipedia:Cross-site_scripting|XSS (Cross-site scripting)]] attack in which a nasty fellow inputs [[:Category:Evil Pages|evil]] HTML to make your site go [[:Category:Bad pages|bad]] and rotten like a hard-boiled egg. | Note that if you're rendering user input in this way, you should wrap it in the <code>[https://www.php.net/manual/en/function.htmlspecialchars.php htmlspecialchars]</code> function, lest you become vulnerable to an [[wikipedia:Cross-site_scripting|XSS (Cross-site scripting)]] attack in which a nasty fellow inputs [[:Category:Evil Pages|evil]] HTML to make your site go [[:Category:Bad pages|bad]] and rotten like a hard-boiled egg. | ||
[[Category:Pages with some amount of information in them]]</translate> | [[Category:Pages with some amount of information in them]]</translate> | ||