An interpretation of the PRG pattern, using PHP.
| <?php | |
| session_start (); | |
| if ($_POST['some_text']) { | |
| $_SESSION['some_text'] = $_POST['some_text']; | |
| header ('HTTP/1.1 303 See Other'); | |
| header ('Location: ./'); | |
| } else { | |
| $some_text = "<p>No text set yet.</p>\n"; | |
| } | |
| if ($_SESSION['some_text']) $some_text = "<p>'some_text' has been set to '".$_SESSION['some_text']."'.</p>\n"; | |
| ?> | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>PRG in PHP</title> | |
| </head> | |
| <body> | |
| <p>See <a href="http://blog.shamess.info/2012/01/06/postrequestget-pattern-in-php/">my blog</a> for more information.</p> | |
| <?php echo $some_text; ?> | |
| <form method="POST" action=""> | |
| <p>This is a form, that will submit data back to this page using POST.</p> | |
| <p>Enter a value for $_POST['some_text']: <input type="text" name="some_text" /></p> | |
| <p><input type="submit" /></p> | |
| </form> | |
| </body> | |
| </html> |
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What does this line
do? And how do we fetch the actual posted data?