wwwroot/smarty/libs/internals/core.write_file.php

   1 <?php
   2 /**
   3  * Smarty plugin
   4  * @package Smarty
   5  * @subpackage plugins
   6  */
   7
   8 /**
   9  * write out a file to disk
  10  *
  11  * @param string $filename
  12  * @param string $contents
  13  * @param boolean $create_dirs
  14  * @return boolean
  15  */
  16 function smarty_core_write_file($params, &$smarty)
  17 {
  18     $_dirname = dirname($params['filename']);
  19
  20     if ($params['create_dirs']) {
  21         $_params = array('dir' => $_dirname);
  22         require_once(SMARTY_CORE_DIR . 'core.create_dir_structure.php');
  23         smarty_core_create_dir_structure($_params, $smarty);
  24     }
  25
  26     // write to tmp file, then rename it to avoid file locking race condition
  27     $_tmp_file = tempnam($_dirname, 'wrt');
  28
  29     if (!($fd = @fopen($_tmp_file, 'wb'))) {
  30         $_tmp_file = $_dirname . DIRECTORY_SEPARATOR . uniqid('wrt');
  31         if (!($fd = @fopen($_tmp_file, 'wb'))) {
  32             $smarty->trigger_error("problem writing temporary file '$_tmp_file'");
  33             return false;
  34         }
  35     }
  36
  37     fwrite($fd, $params['contents']);
  38     fclose($fd);
  39
  40     if (DIRECTORY_SEPARATOR == '\\' || !@rename($_tmp_file, $params['filename'])) {
  41         // On platforms and filesystems that cannot overwrite with rename()
  42         // delete the file before renaming it -- because windows always suffers
  43         // this, it is short-circuited to avoid the initial rename() attempt
  44         @unlink($params['filename']);
  45         @rename($_tmp_file, $params['filename']);
  46     }
  47     @chmod($params['filename'], $smarty->_file_perms);
  48
  49     return true;
  50 }
  51
  52 /* vim: set expandtab: */
  53
  54 ?>