Changeset 1823 for trunk/wp-includes/functions.php

Timestamp:

10/20/2004 09:28:37 PM (21 years ago)

Author:

rboren

Message:

Introducing add_query_arg() and remove_query_arg(). Props: Owen Winkler.

File:

• trunk/wp-includes/functions.php (modified) (1 diff)

trunk/wp-includes/functions.php

@@ -2246 +2246 @@
 }
 
+/*
+add_query_arg: Returns a modified querystring by adding
+a single key & value or an associative array.
+Setting a key value to emptystring removes the key.
+Omitting oldquery_or_uri uses the $_SERVER value.
+
+Parameters:
+add_query_arg(newkey, newvalue, oldquery_or_uri) or
+add_query_arg(associative_array, oldquery_or_uri)
+*/
+function add_query_arg() {
+    $ret = '';
+    if(is_array(func_get_arg(0))) {
+        $uri = @func_get_arg(1);
+    }
+    else {
+        $uri = @func_get_arg(2);
+    }
+    if ('' == $uri) {
+        $uri = $_SERVER['REQUEST_URI'];
+    }
+    if (strstr($uri, '?')) {
+        $parts = explode('?', $uri, 2);
+        if (1 == count($parts)) {
+            $base = '?';
+            $query = $parts[0];
+        }
+        else {
+            $base = $parts[0] . '?';
+            $query = $parts[1];
+        }
+    }
+    else {
+        $base = $uri . '?';
+        $query = '';
+    }
+    parse_str($query, $qs);
+    if (is_array(func_get_arg(0))) {
+        $kayvees = func_get_arg(0);
+        $qs = array_merge($qs, $kayvees);
+    }
+    else
+    {
+            $qs[func_get_arg(0)] = func_get_arg(1);
+    }
+
+    foreach($qs as $k => $v)
+    {
+            if($v != '')
+        {
+                    if($ret != '') $ret .= '&';
+                    $ret .= "$k=$v";
+        }
+    }
+    $ret = $base . $ret;   
+    return trim($ret, '?');
+}
+
+function remove_query_arg($key, $query) {
+    add_query_arg($key, '', $query);
+}
 ?>