url($path = NULL, $options = array())
6/includes/common.inc, line 1256
Generate a URL from a Drupal menu path. Will also pass-through existing URLs.
When creating links in modules, consider whether l() could be a better alternative than url().
$path The Drupal path being linked to, such as "admin/content/node", or an existing URL like "http://drupal.org/". The special path '<front>' may also be given and will generate the site's base URL.
$options An associative array of additional options, with the following keys: 'query' A query string to append to the link, or an array of query key/value properties. 'fragment' A fragment identifier (or named anchor) to append to the link. Do not include the '#' character. 'absolute' (default FALSE) Whether to force the output to be an absolute link (beginning with http:). Useful for links that will be displayed outside the site, such as in an RSS feed. 'alias' (default FALSE) Whether the given path is an alias already. 'external' Whether the given path is an external URL. 'language' An optional language object. Used to build the URL to link to and look up the proper alias for the link. 'base_url' Only used internally, to modify the base URL when a language dependent URL requires so. 'prefix' Only used internally, to modify the path when a language dependent URL requires so.
A string containing a URL to the given path.
<?php
function url($path = NULL, $options = array()) {
// Merge in defaults.
$options += array(
'fragment' => '',
'query' => '',
'absolute' => FALSE,
'alias' => FALSE,
'prefix' => ''
);
if (!isset($options['external'])) {
// Return an external link if $path contains an allowed absolute URL.
// Only call the slow filter_xss_bad_protocol if $path contains a ':' before
// any / ? or #.
$colonpos = strpos($path, ':');
$options['external'] = ($colonpos !== FALSE && !preg_match('![/?#]!', substr($path, 0, $colonpos)) && filter_xss_bad_protocol($path, FALSE) == check_plain($path));
}
// May need language dependent rewriting if language.inc is present.
if (function_exists('language_url_rewrite')) {
language_url_rewrite($path, $options);
}
if ($options['fragment']) {
$options['fragment'] = '#'. $options['fragment'];
}
if (is_array($options['query'])) {
$options['query'] = drupal_query_string_encode($options['query']);
}
if ($options['external']) {
// Split off the fragment.
if (strpos($path, '#') !== FALSE) {
list($path, $old_fragment) = explode('#', $path, 2);
if (isset($old_fragment) && !$options['fragment']) {
$options['fragment'] = '#'. $old_fragment;
}
}
// Append the query.
if ($options['query']) {
$path .= (strpos($path, '?') !== FALSE ? '&' : '?') . $options['query'];
}
// Reassemble.
return $path . $options['fragment'];
}
global $base_url;
static $script;
static $clean_url;
if (!isset($script)) {
// On some web servers, such as IIS, we can't omit "index.php". So, we
// generate "index.php?q=foo" instead of "?q=foo" on anything that is not
// Apache.
$script = (strpos($_SERVER['SERVER_SOFTWARE'], 'Apache') === FALSE) ? 'index.php' : '';
}
// Cache the clean_url variable to improve performance.
if (!isset($clean_url)) {
$clean_url = (bool)variable_get('clean_url', '0');
}
if (!isset($options['base_url'])) {
// The base_url might be rewritten from the language rewrite in domain mode.
$options['base_url'] = $base_url;
}
// Preserve the original path before aliasing.
$original_path = $path;
// The special path '<front>' links to the default front page.
if ($path == '<front>') {
$path = '';
}
elseif (!empty($path) && !$options['alias']) {
$path = drupal_get_path_alias($path, isset($options['language']) ? $options['language']->language : '');
}
if (function_exists('custom_url_rewrite_outbound')) {
// Modules may alter outbound links by reference.
custom_url_rewrite_outbound($path, $options, $original_path);
}
$base = $options['absolute'] ? $options['base_url'] .'/' : base_path();
$prefix = empty($path) ? rtrim($options['prefix'], '/') : $options['prefix'];
$path = drupal_urlencode($prefix . $path);
if ($clean_url) {
// With Clean URLs.
if ($options['query']) {
return $base . $path .'?'. $options['query'] . $options['fragment'];
}
else {
return $base . $path . $options['fragment'];
}
}
else {
// Without Clean URLs.
$variables = array();
if (!empty($path)) {
$variables[] = 'q='. $path;
}
if (!empty($options['query'])) {
$variables[] = $options['query'];
}
if ($query = join('&', $variables)) {
return $base . $script .'?'. $query . $options['fragment'];
}
else {
return $base . $options['fragment'];
}
}
}
?>