note 42760 deleted from function.preg-replace-callback by nlopess
| From: | nlopess@php.net | Date: | Wed, 30 Jun 2004 19:19:23 +0000 |
| Subject: | note 42760 deleted from function.preg-replace-callback by nlopess | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-72185@lists.php.net to get a copy of this message | ||
Note Submitter: aleksandar_markovic@netsector.net
----
This simple code evaluate PHP code stored in string (generally stored in some database back end).
This code will look for <php> as starting tag and </php> as ending tag.
In this tag can be any PHP code which result will replace the original code.
Sample code:
<?php
$html_data = 'Some html...<br>';
$html_data .= 'some php output...<php>return 2+2;</php><br>';
$html_data .= 'some php include...<php>include ("file.php");</php>';
function myeval($input) {
if (preg_match ("/include/i", $input[1])) {
ob_start();
eval($input[1]);
$buffer = ob_get_clean();
return $buffer;
} else
return eval($input[1]);
}
$tag_search = "/\<php>(.*?)\<\/php>/si";
$html_data = preg_replace_callback($tag_search,"myeval",$html_data);
echo $html_data;
?>
Output:
Some html...
some php output...4
some php include...[output of file.php]