theme_get_function

• Drupal 4.7
• Drupal 5

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Definition

theme_get_function($function)
includes/theme.inc, line 182

Description

Determine if a theme function exists, and if so return which one was found.

Parameters

$function The name of the theme function to test.

Return value

The name of the theme function that should be used, or FALSE if no function exists.

Code

<?php
function theme_get_function($function) {
  global $theme, $theme_engine;

  // Because theme() is called a lot, calling init_theme() only to have it
  // smartly return is a noticeable performance hit. Don't do it.
  if (!isset($theme)) {
    init_theme();
  }

  if (($theme != '') && function_exists($theme .'_'. $function)) {
    // call theme function
    return $theme .'_'. $function;
  }
  elseif (($theme != '') && isset($theme_engine) && function_exists($theme_engine .'_'. $function)) {
    // call engine function
    return $theme_engine .'_'. $function;
  }
  elseif (function_exists('theme_'. $function)){
    // call Drupal function
    return 'theme_'. $function;
  }
  return FALSE;
}
?>