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htmlpurifier/maintenance/compat-function-file-put-contents.php

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<?php
// $Id: file_put_contents.php,v 1.27 2007/04/17 10:09:56 arpad Exp $
if (!defined('FILE_USE_INCLUDE_PATH')) {
define('FILE_USE_INCLUDE_PATH', 1);
}
if (!defined('LOCK_EX')) {
define('LOCK_EX', 2);
}
if (!defined('FILE_APPEND')) {
define('FILE_APPEND', 8);
}
/**
* Replace file_put_contents()
*
* @category PHP
* @package PHP_Compat
* @license LGPL - http://www.gnu.org/licenses/lgpl.html
* @copyright 2004-2007 Aidan Lister <aidan@php.net>, Arpad Ray <arpad@php.net>
* @link http://php.net/function.file_put_contents
* @author Aidan Lister <aidan@php.net>
* @version $Revision: 1.27 $
* @internal resource_context is not supported
* @since PHP 5
* @require PHP 4.0.0 (user_error)
*/
function php_compat_file_put_contents($filename, $content, $flags = null, $resource_context = null)
{
// If $content is an array, convert it to a string
if (is_array($content)) {
$content = implode('', $content);
}
// If we don't have a string, throw an error
if (!is_scalar($content)) {
user_error('file_put_contents() The 2nd parameter should be either a string or an array',
E_USER_WARNING);
return false;
}
// Get the length of data to write
$length = strlen($content);
// Check what mode we are using
$mode = ($flags & FILE_APPEND) ?
'a' :
'wb';
// Check if we're using the include path
$use_inc_path = ($flags & FILE_USE_INCLUDE_PATH) ?
true :
false;
// Open the file for writing
if (($fh = @fopen($filename, $mode, $use_inc_path)) === false) {
user_error('file_put_contents() failed to open stream: Permission denied',
E_USER_WARNING);
return false;
}
// Attempt to get an exclusive lock
$use_lock = ($flags & LOCK_EX) ? true : false ;
if ($use_lock === true) {
if (!flock($fh, LOCK_EX)) {
return false;
}
}
// Write to the file
$bytes = 0;
if (($bytes = @fwrite($fh, $content)) === false) {
$errormsg = sprintf('file_put_contents() Failed to write %d bytes to %s',
$length,
$filename);
user_error($errormsg, E_USER_WARNING);
return false;
}
// Close the handle
@fclose($fh);
// Check all the data was written
if ($bytes != $length) {
$errormsg = sprintf('file_put_contents() Only %d of %d bytes written, possibly out of free disk space.',
$bytes,
$length);
user_error($errormsg, E_USER_WARNING);
return false;
}
// Return length
return $bytes;
}
// Define
if (!function_exists('file_put_contents')) {
function file_put_contents($filename, $content, $flags = null, $resource_context = null)
{
return php_compat_file_put_contents($filename, $content, $flags, $resource_context);
}
}