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function file_upload_max_size

file_upload_max_size()

Determines the maximum file upload size by querying the PHP settings.

Return value

A file size limit in bytes based on the PHP upload_max_filesize and post_max_size

Related topics

File interface
Common file handling functions.

File

core/includes/file.inc, line 1067
API for handling file uploads and server file management.

Code

function file_upload_max_size() {
  static $max_size = -1;

  if ($max_size < 0) {
    // Start with post_max_size.
    $max_size = Bytes::toInt(ini_get('post_max_size'));

    // If upload_max_size is less, then reduce. Except if upload_max_size is
    // zero, which indicates no limit.
    $upload_max = Bytes::toInt(ini_get('upload_max_filesize'));
    if ($upload_max > 0 && $upload_max < $max_size) {
      $max_size = $upload_max;
    }
  }
  return $max_size;
}

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Licensed under the GNU General Public License, version 2 and later.
Drupal is a registered trademark of Dries Buytaert.
https://api.drupal.org/api/drupal/core!includes!file.inc/function/file_upload_max_size/8.1.x