function file_progress_implementation

Same name in other branches
  1. 9 core/modules/file/file.module \file_progress_implementation()
  2. 8.9.x core/modules/file/file.module \file_progress_implementation()
  3. 10 core/modules/file/file.module \file_progress_implementation()

Determines the preferred upload progress implementation.

Return value

A string indicating which upload progress system is available. Either "apc" or "uploadprogress". If neither are available, returns FALSE.

4 calls to file_progress_implementation()
file_ajax_progress in modules/file/file.module
Menu callback for upload progress.
file_field_widget_settings_form in modules/file/file.field.inc
Implements hook_field_widget_settings_form().
file_managed_file_process in modules/file/file.module
Process function to expand the managed_file element type.
file_requirements in modules/file/file.install
Implements hook_requirements().

File

modules/file/file.module, line 343

Code

function file_progress_implementation() {
    static $implementation;
    if (!isset($implementation)) {
        $implementation = FALSE;
        // We prefer the PECL extension uploadprogress because it supports multiple
        // simultaneous uploads. APC only supports one at a time.
        if (extension_loaded('uploadprogress')) {
            $implementation = 'uploadprogress';
        }
        elseif (extension_loaded('apc') && ini_get('apc.rfc1867')) {
            $implementation = 'apc';
        }
    }
    return $implementation;
}

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.