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-rw-r--r--include/functions_url.inc.php38
1 files changed, 38 insertions, 0 deletions
diff --git a/include/functions_url.inc.php b/include/functions_url.inc.php
index 02b938ecb..906cf915a 100644
--- a/include/functions_url.inc.php
+++ b/include/functions_url.inc.php
@@ -794,4 +794,42 @@ function get_gallery_home_url()
return make_index_url();
}
}
+
+/**
+ * returns $_SERVER['QUERY_STRING'] whithout keys given in parameters
+ *
+ * @param string[] $rejects
+ * @param boolean $escape escape *&* to *&*
+ * @returns string
+ */
+function get_query_string_diff($rejects=array(), $escape=true)
+{
+ if (empty($_SERVER['QUERY_STRING']))
+ {
+ return '';
+ }
+
+ parse_str($_SERVER['QUERY_STRING'], $vars);
+
+ $vars = array_diff_key($vars, array_flip($rejects));
+
+ return '?' . http_build_query($vars, '', $escape ? '&' : '&');
+}
+
+/**
+ * returns true if the url is absolute (begins with http)
+ *
+ * @param string $url
+ * @returns boolean
+ */
+function url_is_remote($url)
+{
+ if ( strncmp($url, 'http://', 7)==0
+ or strncmp($url, 'https://', 8)==0 )
+ {
+ return true;
+ }
+ return false;
+}
+
?> \ No newline at end of file