function drupal_eval in Drupal 5
Same name and namespace in other branches
- 4 includes/common.inc \drupal_eval()
- 6 includes/common.inc \drupal_eval()
Evaluate a string of PHP code.
This is a wrapper around PHP's eval(). It uses output buffering to capture both returned and printed text. Unlike eval(), we require code to be surrounded by <?php ?> tags; in other words, we evaluate the code as if it were a stand-alone PHP file.
Using this wrapper also ensures that the PHP code which is evaluated can not overwrite any variables in the calling code, unlike a regular eval() call.
Parameters
$code: The code to evaluate.
Return value
A string containing the printed output of the code, followed by the returned output of the code.
Related topics
2 calls to drupal_eval()
- block_list in modules/
block/ block.module - Return all blocks in the specified region for the current user.
- filter_filter in modules/
filter/ filter.module - Implementation of hook_filter(). Contains a basic set of essential filters.
File
- includes/
common.inc, line 1494 - Common functions that many Drupal modules will need to reference.
Code
function drupal_eval($code) {
ob_start();
print eval('?>' . $code);
$output = ob_get_contents();
ob_end_clean();
return $output;
}