library/core/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' => $_dirname);
  22         require_once(SMARTY_DIR . 'core' . DIRECTORY_SEPARATOR . 'core.create_dir_structure.php');
  23         smarty_core_create_dir_structure($_params, $smarty);
  24     }
  25
  26     // write to tmp file, then rename it to avoid
  27     // file locking race condition
  28     $_tmp_file = $_dirname . DIRECTORY_SEPARATOR . uniqid('');
  29
  30     touch($_tmp_file); // php bug
  31     if (!($fd = @fopen($_tmp_file, 'w'))) {
  32         $smarty->trigger_error("problem writing temporary file '$_tmp_file'");
  33         return false;
  34     }
  35
  36     fwrite($fd, $params['contents']);
  37     if (isset($params['timestamp'])) {
  38        touch($_tmp_file, $params['timestamp']);
  39     }
  40     fclose($fd);
  41     if(file_exists($params['filename'])) {
  42         @unlink($params['filename']);
  43     }
  44     @rename($_tmp_file, $params['filename']);
  45     @chmod($params['filename'], $smarty->_file_perms);
  46
  47     return true;
  48 }
  49
  50 /* vim: set expandtab: */
  51
  52 ?>