function drupal_http_build_query

Parses an array into a valid, rawurlencoded query string.

This differs from http_build_query() as we need to rawurlencode() (instead of urlencode()) all query parameters.


$query: The query parameter array to be processed, e.g. $_GET.

$parent: Internal use only. Used to build the $query array key for nested items.

Return value

A rawurlencoded string which can be used as or appended to the URL query string.

See also


Related topics

11 calls to drupal_http_build_query()
CommonURLUnitTest::testDrupalHttpBuildQuery in modules/simpletest/tests/common.test
Test drupal_http_build_query().
DrupalHTTPRequestTestCase::testDrupalHTTPRequest in modules/simpletest/tests/common.test
drupal_current_script_url in includes/
Returns the URL of the current script, with modified query parameters.
drupal_get_destination in includes/
Prepares a 'destination' URL query parameter for use with drupal_goto().
drupal_http_request in includes/
Performs an HTTP request.

... See full list


includes/, line 486


function drupal_http_build_query(array $query, $parent = '') {
    $params = array();
    foreach ($query as $key => $value) {
        $key = $parent ? $parent . rawurlencode('[' . $key . ']') : rawurlencode($key);
        // Recurse into children.
        if (is_array($value)) {
            $params[] = drupal_http_build_query($value, $key);
        elseif (!isset($value)) {
            $params[] = $key;
        else {
            // For better readability of paths in query strings, we decode slashes.
            $params[] = $key . '=' . str_replace('%2F', '/', rawurlencode($value));
    return implode('&', $params);

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