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Thanks to John, who indirectly reminded me about this :D ... echo only data we need to echo.

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git-svn-id: file:///svn/phpbb/trunk@3928 89ea8834-ac86-4346-8a33-228a782c2dd0
This commit is contained in:
Paul S. Owen 2003-04-23 14:55:13 +00:00
parent 178d7e052a
commit 72fbb43a1e
1 changed files with 177 additions and 151 deletions
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328
phpBB/includes/template.php
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@ -42,9 +42,8 @@
// * Allow use of Smarty plug-ins? // * Allow use of Smarty plug-ins?
// * Reduce number of methods and variables // * Reduce number of methods and variables
class Template { class Template
{
var $classname = 'Template';
// variable that holds all the data we'll be substituting into // variable that holds all the data we'll be substituting into
// the compiled templates. Takes form: // the compiled templates. Takes form:
@ -60,21 +59,26 @@ class Template {
// this will hash handle names to the compiled/uncompiled code for that handle. // this will hash handle names to the compiled/uncompiled code for that handle.
var $compiled_code = array(); var $compiled_code = array();
var $uncompiled_code = array();
// Various counters and storage arrays // Various counters and storage arrays
var $block_names = array(); var $block_names = array();
var $block_else_level = array(); var $block_else_level = array();
var $include_counter = 1;
var $block_nesting_level = 0; var $block_nesting_level = 0;
function set_template($template = '') var $static_lang;
var $force_recompile;
function set_template($template = '', $static_lang = false, $force_recompile = false)
{ {
global $phpbb_root_path; global $phpbb_root_path;
$this->root = $phpbb_root_path . 'templates/' . $template; $this->root = $phpbb_root_path . 'templates/' . $template;
$this->cachedir = $phpbb_root_path . $this->cache_root . $template . '/'; $this->cachedir = $phpbb_root_path . $this->cache_root . $template . '/';
$this->static_lang = $static_lang;
$this->force_recompile = $force_recompile;
if (!file_exists($this->cachedir)) if (!file_exists($this->cachedir))
{ {
@umask(0); @umask(0);
@ -98,7 +102,7 @@ class Template {
{ {
if (empty($filename)) if (empty($filename))
{ {
trigger_error("Template error - Empty filename specified for $handle", E_USER_ERROR); trigger_error("template error - Empty filename specified for $handle", E_USER_ERROR);
} }
$this->filename[$handle] = $filename; $this->filename[$handle] = $filename;
@ -117,12 +121,43 @@ class Template {
return (substr($filename, 0, 1) != '/') ? $this->root . '/' . $filename : $filename; return (substr($filename, 0, 1) != '/') ? $this->root . '/' . $filename : $filename;
} }
/** // Destroy template data set
* If not already done, load the file for the given handle and populate function destroy()
* the uncompiled_code[] hash with its code. Do not compile.
*/
function loadfile($handle)
{ {
$this->_tpldata = array();
}
// Methods for loading and evaluating the templates
function display($handle)
{
global $user;
if ($filename = $this->_tpl_load($handle))
{
include($filename);
}
else
{
eval(' ?>' . $this->compiled_code[$handle] . '<?php ');
}
return true;
}
// Load a compiled template if possible, if not, recompile it
function _tpl_load(&$handle)
{
global $phpEx, $user;
$filename = $this->cachedir . $this->filename[$handle] . '.' . (($this->static_lang) ? $user->data['user_lang'] . '.' : '') . $phpEx;
// Recompile page if the original template is newer, otherwise load the compiled version
if (file_exists($filename) && !$this->force_recompile)
{
return $filename;
}
// If the file for this handle is already loaded and compiled, do nothing. // If the file for this handle is already loaded and compiled, do nothing.
if (!empty($this->uncompiled_code[$handle])) if (!empty($this->uncompiled_code[$handle]))
{ {
@ -132,81 +167,28 @@ class Template {
// If we don't have a file assigned to this handle, die. // If we don't have a file assigned to this handle, die.
if (!isset($this->files[$handle])) if (!isset($this->files[$handle]))
{ {
trigger_error("Template->loadfile(): No file specified for handle $handle", E_USER_ERROR); trigger_error("template->_tpl_load(): No file specified for handle $handle", E_USER_ERROR);
}
if (!($fp = @fopen($this->files[$handle], 'r')))
{
trigger_error("Template->loadfile(): Error - file $filename does not exist or is empty", E_USER_ERROR);
} }
$str = ''; $str = '';
// Try and open template for read
if (!($fp = @fopen($this->files[$handle], 'r')))
{
trigger_error("template->_tpl_load(): File $filename does not exist or is empty", E_USER_ERROR);
}
$str = fread($fp, filesize($this->files[$handle])); $str = fread($fp, filesize($this->files[$handle]));
@fclose($fp); @fclose($fp);
$this->uncompiled_code[$handle] = trim($str); // Actually compile the code now.
$this->compiled_code[$handle] = $this->compile(trim($str));
$this->compile_write($handle, $this->compiled_code[$handle]);
return true;
}
/**
* Destroys this template object. Should be called when you're done with it, in order
* to clear out the template data so you can load/parse a new template set.
*/
function destroy()
{
$this->_tpldata = array();
}
//
// Methods for loading and evaluating the templates
//
function display($handle)
{
if (!$this->compile_load($handle, true))
{
global $user, $phpEx;
if (!$this->loadfile($handle))
{
trigger_error("Template->display(): Couldn't load template file for handle $handle", E_USER_ERROR);
}
// Actually compile the code now.
$this->compiled_code[$handle] = $this->compile($this->uncompiled_code[$handle]);
$this->compile_write($handle, $this->compiled_code[$handle]);
eval($this->compiled_code[$handle]);
}
return true;
}
function compile_load(&$handle, $include = true)
{
global $phpEx, $user;
$filename = $this->cachedir . $this->filename[$handle] . '.' . $phpEx;
// Recompile page if the original template is newer, otherwise load the compiled version
if (file_exists($filename) && @filemtime($filename) >= @filemtime($this->files[$handle]))
{
if ($include)
{
include($filename);
}
return true;
}
return false; return false;
} }
/** // Assign key variable pairs from an array
* Root-level variable assignment. Adds to current assignments, overriding
* any existing variable assignment with the same name.
*/
function assign_vars($vararray) function assign_vars($vararray)
{ {
foreach ($vararray as $key => $val) foreach ($vararray as $key => $val)
@ -217,10 +199,7 @@ class Template {
return true; return true;
} }
/** // Assign a single variable to a single key
* Root-level variable assignment. Adds to current assignments, overriding
* any existing variable assignment with the same name.
*/
function assign_var($varname, $varval) function assign_var($varname, $varval)
{ {
$this->_tpldata['.'][0][$varname] = $varval; $this->_tpldata['.'][0][$varname] = $varval;
@ -228,11 +207,7 @@ class Template {
return true; return true;
} }
/** // Assign key variable pairs from an array to a specified block
* Block-level variable assignment. Adds a new block iteration with the given
* variable assignments. Note that this should only be called once per block
* iteration.
*/
function assign_block_vars($blockname, $vararray) function assign_block_vars($blockname, $vararray)
{ {
if (strstr($blockname, '.')) if (strstr($blockname, '.'))
@ -244,73 +219,71 @@ class Template {
$str = &$this->_tpldata; $str = &$this->_tpldata;
for ($i = 0; $i < $blockcount; $i++) for ($i = 0; $i < $blockcount; $i++)
{ {
$str = &$str[$blocks[$i] . '.']; $str = &$str[$blocks[$i]];
$str = &$str[sizeof($str) - 1]; $str = &$str[sizeof($str) - 1];
} }
// Now we add the block that we're actually assigning to. // Now we add the block that we're actually assigning to.
// We're adding a new iteration to this block with the given // We're adding a new iteration to this block with the given
// variable assignments. // variable assignments.
$str[$blocks[$blockcount] . '.'][] = $vararray; $str[$blocks[$blockcount]][] = $vararray;
} }
else else
{ {
// Top-level block. // Top-level block.
// Add a new iteration to this block with the variable assignments // Add a new iteration to this block with the variable assignments
// we were given. // we were given.
$this->_tpldata[$blockname . '.'][] = $vararray; $this->_tpldata[$blockname][] = $vararray;
} }
return true; return true;
} }
// Additional methods // Include a seperate template
function _tpl_include($filename, $include = true) function _tpl_include($filename, $include = true)
{ {
$handle = $filename; global $user;
$handle = $filename;
$this->filename[$handle] = $filename; $this->filename[$handle] = $filename;
$this->files[$handle] = $this->make_filename($filename); $this->files[$handle] = $this->make_filename($filename);
if (!($this->compile_load($handle, $include))) $filename = $this->_tpl_load($handle);
if ($include)
{ {
global $user, $phpEx; // eval($this->compiled_code[$handle]);
include($filename);
if (!$this->loadfile($handle))
{
trigger_error("Template->_tpl_include(): Couldn't load template file for handle $handle", E_USER_ERROR);
}
$this->compiled_code[$handle] = $this->compile($this->uncompiled_code[$handle]);
$this->compile_write($handle, $this->compiled_code[$handle]);
} }
} }
// This next set of methods could be seperated off and included since
// they deal exclusively with compilation ... which is done infrequently
// and would save a fair few kb
/** // The all seeing all doing compile method. Parts are inspired by or directly
* Compiles the given string of code, and returns // from Smarty
* the result in a string. function compile($code, $no_echo = false, $echo_var = '')
* If "do_not_echo" is true, the returned code will not be directly
* executable, but can be used as part of a variable assignment
* for use in assign_code_from_handle().
*
* Parts of this where inspired by Smarty
*/
function compile($code, $do_not_echo = false, $retvar = '')
{ {
global $config;
// Pull out all block/statement level elements and seperate // Pull out all block/statement level elements and seperate
// plain text // plain text
preg_match_all('#<!-- PHP -->(.*?)<!-- ENDPHP -->#s', $code, $matches); preg_match_all('#<!-- PHP -->(.*?)<!-- ENDPHP -->#s', $code, $matches);
$php_blocks = $matches[1]; $php_blocks = $matches[1];
$code = preg_replace('#<!-- PHP -->(.*?)<!-- ENDPHP -->#s', '<!-- PHP -->', $code); $code = preg_replace('#<!-- PHP -->(.*?)<!-- ENDPHP -->#s', '<!-- PHP -->', $code);
preg_match_all('#<!-- INCLUDE (.*?) -->#s', $code, $matches); preg_match_all('#<!-- INCLUDE ([a-zA-Z0-9\_\-\+\.]+?) -->#', $code, $matches);
$include_blocks = $matches[1]; $include_blocks = $matches[1];
$code = preg_replace('#<!-- INCLUDE (.*?) -->#s', '<!-- INCLUDE -->', $code); $code = preg_replace('#<!-- INCLUDE ([a-zA-Z0-9\_\-\+\.]+?) -->#', '<!-- INCLUDE -->', $code);
preg_match_all('#<!-- INCLUDEPHP ([a-zA-Z0-9\_\-\+\.\\]+?) -->#', $code, $matches);
$includephp_blocks = $matches[1];
$code = preg_replace('#<!-- INCLUDEPHP ([a-zA-Z0-9\_\-\+\.]+?) -->#', '<!-- INCLUDEPHP -->', $code);
preg_match_all('#<!-- (.*?) (.*?)?[ ]?-->#s', $code, $blocks); preg_match_all('#<!-- (.*?) (.*?)?[ ]?-->#s', $code, $blocks);
$text_blocks = preg_split('#<!-- (.*?) (.*?)?[ ]?-->#s', $code); $text_blocks = preg_split('#<!-- (.*?) (.*?)?[ ]?-->#s', $code);
@ -319,6 +292,7 @@ class Template {
$this->compile_var_tags($text_blocks[$i]); $this->compile_var_tags($text_blocks[$i]);
} }
$compile_blocks = array(); $compile_blocks = array();
for ($curr_tb = 0; $curr_tb < count($text_blocks); $curr_tb++) for ($curr_tb = 0; $curr_tb < count($text_blocks); $curr_tb++)
@ -327,45 +301,64 @@ class Template {
{ {
case 'BEGIN': case 'BEGIN':
$this->block_else_level[] = false; $this->block_else_level[] = false;
$compile_blocks[] = '// BEGIN ' . $blocks[2][$curr_tb] . "\n" . $this->compile_tag_block($blocks[2][$curr_tb]); $compile_blocks[] = '<?php ' . $this->compile_tag_block($blocks[2][$curr_tb]) . ' ?>';
break; break;
case 'BEGINELSE': case 'BEGINELSE':
$this->block_else_level[sizeof($this->block_else_level) - 1] = true; $this->block_else_level[sizeof($this->block_else_level) - 1] = true;
$compile_blocks[] = "// BEGINELSE\n}} else {\n"; $compile_blocks[] = '<?php }} else { ?>';
break; break;
case 'END': case 'END':
$compile_blocks[] = ((array_pop($this->block_else_level)) ? "}\n" : "}}\n") . '// END ' . array_pop($this->block_names) . "\n"; array_pop($this->block_names);
$compile_blocks[] = '<?php ' . ((array_pop($this->block_else_level)) ? '}' : '}}') . ' ?>';
break; break;
case 'IF': case 'IF':
$compile_blocks[] = '// IF ' . $blocks[2][$curr_tb] . "\n" . $this->compile_tag_if($blocks[2][$curr_tb], false); $compile_blocks[] = '<?php ' . $this->compile_tag_if($blocks[2][$curr_tb], false) . ' ?>';
break; break;
case 'ELSE': case 'ELSE':
$compile_blocks[] = "// ELSE\n} else {\n"; $compile_blocks[] = '<?php } else { ?>';
break; break;
case 'ELSEIF': case 'ELSEIF':
$compile_blocks[] = '// ELSEIF ' . $blocks[2][$curr_tb] . "\n" . $this->compile_tag_if($blocks[2][$curr_tb], true); $compile_blocks[] = '<?php ' . $this->compile_tag_if($blocks[2][$curr_tb], true) . ' ?>';
break; break;
case 'ENDIF': case 'ENDIF':
$compile_blocks[] = "// ENDIF\n}\n"; $compile_blocks[] = '<?php } ?>';
break; break;
case 'INCLUDE': case 'INCLUDE':
$temp = ''; $temp = '';
list(, $temp) = each($include_blocks); list(, $temp) = each($include_blocks);
$compile_blocks[] = "// INCLUDE $temp\n\$this->_tpl_include('$temp');\n"; $compile_blocks[] = '<?php ' . $this->compile_tag_include($temp) . ' ?>';
$this->_tpl_include($temp, false); $this->_tpl_include($temp, false);
break; break;
/* case 'INCLUDEPHP':
$compile_blocks[] = '// INCLUDEPHP ' . $blocks[2][$curr_tb] . "\n" . $this->compile_tag_include_php($blocks[2][$curr_tb]); case 'INCLUDEPHP':
if ($config['tpl_php'])
{
$temp = '';
list(, $temp) = each($includephp_blocks);
$compile_blocks[] = '<?php ' . $this->compile_tag_include_php($temp) . ' ?>';
}
break; break;
case 'PHP': case 'PHP':
$temp = ''; if ($config['tpl_php'])
list(, $temp) = each($php_blocks); {
$compile_blocks[] = "// PHP START\n" . $temp . "\n// PHP END\n"; $temp = '';
break;*/ list(, $temp) = each($php_blocks);
$compile_blocks[] = '<?php ' . $temp . ' ?>';
}
break;
default: default:
$this->compile_var_tags($blocks[0][$curr_tb]); $this->compile_var_tags($blocks[0][$curr_tb]);
$trim_check = trim($blocks[0][$curr_tb]); $trim_check = trim($blocks[0][$curr_tb]);
$compile_blocks[] = (!$do_not_echo) ? ((!empty($trim_check)) ? 'echo \'' . $blocks[0][$curr_tb] . '\';' : '') : ((!empty($trim_check)) ? $blocks[0][$curr_tb] : ''); $compile_blocks[] = (!$do_not_echo) ? ((!empty($trim_check)) ? $blocks[0][$curr_tb] : '') : ((!empty($trim_check)) ? $blocks[0][$curr_tb] : '');
break; break;
} }
} }
@ -375,10 +368,12 @@ class Template {
{ {
$trim_check_text = trim($text_blocks[$i]); $trim_check_text = trim($text_blocks[$i]);
$trim_check_block = trim($compile_blocks[$i]); $trim_check_block = trim($compile_blocks[$i]);
$template_php .= (!$do_not_echo) ? ((!empty($trim_check_text)) ? 'echo \'' . $text_blocks[$i] . '\';' : '') . ((!empty($compile_blocks[$i])) ? $compile_blocks[$i] : '') : ((!empty($trim_check_text)) ? $text_blocks[$i] . "\n" : '') . ((!empty($compile_blocks[$i])) ? $compile_blocks[$i] . "\n" : ''); $template_php .= (!$no_echo) ? ((!empty($trim_check_text)) ? $text_blocks[$i] : '') . ((!empty($compile_blocks[$i])) ? $compile_blocks[$i] : '') : ((!empty($trim_check_text)) ? $text_blocks[$i] : '') . ((!empty($compile_blocks[$i])) ? $compile_blocks[$i] : '');
} }
return (!$do_not_echo) ? $template_php : '$' . $retvar . '.= \'' . $template_php . '\''; $template_php = str_replace(' ?><?php ', '', $template_php);
return (!$no_echo) ? $template_php : "\$$echo_var .= '" . addslashes($template_php) . "'";
} }
function compile_var_tags(&$text_blocks) function compile_var_tags(&$text_blocks)
@ -402,8 +397,17 @@ class Template {
} }
// This will handle the remaining root-level varrefs // This will handle the remaining root-level varrefs
$text_blocks = preg_replace('#\{L_([a-z0-9\-_]*?)\}#is', "' . ((isset(\$this->_tpldata['.'][0]['L_\\1'])) ? \$this->_tpldata['.'][0]['L_\\1'] : ((isset(\$user->lang['\\1'])) ? \$user->lang['\\1'] : '{ ' . ucfirst(strtolower(str_replace('_', ' ', '\\1'))) . ' }')) . '", $text_blocks); if (!$this->static_lang)
$text_blocks = preg_replace('#\{([a-z0-9\-_]*?)\}#is', "' . ((isset(\$this->_tpldata['.'][0]['\\1'])) ? \$this->_tpldata['.'][0]['\\1'] : '') . '", $text_blocks); {
$text_blocks = preg_replace('#\{L_([a-z0-9\-_]*?)\}#is', "<?php echo ((isset(\$this->_tpldata['.'][0]['L_\\1'])) ? \$this->_tpldata['.'][0]['L_\\1'] : ((isset(\$user->lang['\\1'])) ? \$user->lang['\\1'] : '{ ' . ucfirst(strtolower(str_replace('_', ' ', '\\1'))) . ' }')); ?>", $text_blocks);
}
else
{
global $user;
$text_blocks = preg_replace('#\{L_([A-Z0-9\-_]*?)\}#e', "<?php echo ((isset(\$this->_tpldata[\'.\'][0][\'L_\\1\'])) ? \$this->_tpldata[\'.\'][0][\'L_\\1\'] : \'' . ((isset(\$user->lang['\\1'])) ? \$user->lang['\\1'] : '') . '\'); ?>'" , $text_blocks);
}
$text_blocks = preg_replace('#\{([a-z0-9\-_]*?)\}#is', "<?php echo \$this->_tpldata['.'][0]['\\1']; ?>", $text_blocks);
return; return;
} }
@ -416,9 +420,7 @@ class Template {
if (sizeof($this->block_names) < 2) if (sizeof($this->block_names) < 2)
{ {
// Block is not nested. // Block is not nested.
$tag_template_php = '$_' . $tag_args . '_count = (isset($this->_tpldata[\'' . $tag_args . '.\'])) ? sizeof($this->_tpldata[\'' . $tag_args . '.\']) : 0;' . "\n"; $tag_template_php = '$_' . $tag_args . "_count = (isset(\$this->_tpldata['$tag_args'])) ? sizeof(\$this->_tpldata['$tag_args']) : 0;";
$tag_template_php .= 'if ($_' . $tag_args . '_count) {' . "\n";
$tag_template_php .= 'for ($this->_' . $tag_args . '_i = 0; $this->_' . $tag_args . '_i < $_' . $tag_args . '_count; $this->_' . $tag_args . '_i++)';
} }
else else
{ {
@ -432,12 +434,11 @@ class Template {
$varref = $this->generate_block_data_ref($namespace, false); $varref = $this->generate_block_data_ref($namespace, false);
// Create the for loop code to iterate over this block. // Create the for loop code to iterate over this block.
$tag_template_php = '$_' . $tag_args . '_count = (isset(' . $varref . ')) ? sizeof(' . $varref . ') : 0;' . "\n"; $tag_template_php = '$_' . $tag_args . '_count = (isset(' . $varref . ')) ? sizeof(' . $varref . ') : 0;';
$tag_template_php .= 'if ($_' . $tag_args . '_count) {' . "\n";
$tag_template_php .= 'for ($this->_' . $tag_args . '_i = 0; $this->_' . $tag_args . '_i < $_' . $tag_args . '_count; $this->_' . $tag_args . '_i++)';
} }
$tag_template_php .= "\n{\n"; $tag_template_php .= 'if ($_' . $tag_args . '_count) {';
$tag_template_php .= 'for ($this->_' . $tag_args . '_i = 0; $this->_' . $tag_args . '_i < $_' . $tag_args . '_count; $this->_' . $tag_args . '_i++){';
return $tag_template_php; return $tag_template_php;
} }
@ -462,8 +463,36 @@ class Template {
{ {
$token = &$tokens[$i]; $token = &$tokens[$i];
switch ($token) switch (strtolower($token))
{ {
case '!':
case '%':
case '!==':
case '==':
case '===':
case '>':
case '<':
case '!=':
case '<>':
case '<<':
case '>>':
case '<=':
case '>=':
case '&&':
case '||':
case '|':
case '^':
case '&':
case '~':
case ')':
case ',':
case '+':
case '-':
case '*':
case '/':
case '@':
break;
case 'eq': case 'eq':
$token = '=='; $token = '==';
break; break;
@ -530,17 +559,17 @@ class Template {
} }
} }
return (($elseif) ? '} elseif (' : 'if (') . (implode(' ', $tokens) . ') { ' . "\n"); return (($elseif) ? '} elseif (' : 'if (') . (implode(' ', $tokens) . ') { ');
} }
function compile_tag_include($tag_args) function compile_tag_include($tag_args)
{ {
return "\$this->assign_from_include('$tag_args');\n"; return "\$this->_tpl_include('$tag_args');";
} }
function compile_tag_include_php($tag_args) function compile_tag_include_php($tag_args)
{ {
return "include('" . $this->root . '/' . $tag_args . "');\n"; return "include('" . $this->root . '/' . $tag_args . "');";
} }
// This is from Smarty // This is from Smarty
@ -628,7 +657,7 @@ class Template {
// Append the variable reference. // Append the variable reference.
$varref .= "['$varname']"; $varref .= "['$varname']";
$varref = "' . $varref . '"; $varref = "<?php echo $varref; ?>";
return $varref; return $varref;
@ -652,11 +681,11 @@ class Template {
// Build up the string with everything but the last child. // Build up the string with everything but the last child.
for ($i = 0; $i < $blockcount; $i++) for ($i = 0; $i < $blockcount; $i++)
{ {
$varref .= "['" . $blocks[$i] . ".'][\$this->_" . $blocks[$i] . '_i]'; $varref .= "['" . $blocks[$i] . "'][\$this->_" . $blocks[$i] . '_i]';
} }
// Add the block reference for the last child. // Add the block reference for the last child.
$varref .= "['" . $blocks[$blockcount] . ".']"; $varref .= "['" . $blocks[$blockcount] . "']";
// Add the iterator for the last child if requried. // Add the iterator for the last child if requried.
if ($include_last_iterator) if ($include_last_iterator)
@ -669,11 +698,9 @@ class Template {
function compile_write(&$handle, $data) function compile_write(&$handle, $data)
{ {
global $phpEx; global $phpEx, $user;
$filename = $this->cachedir . $this->filename[$handle] . '.' . $phpEx; $filename = $this->cachedir . $this->filename[$handle] . '.' . (($this->static_lang) ? $user->data['user_lang'] . '.' : '') . $phpEx;
$data = "<?php\n$data\n?>";
if ($fp = @fopen($filename, 'w+')) if ($fp = @fopen($filename, 'w+'))
{ {
@ -682,7 +709,6 @@ class Template {
@flock($fp, LOCK_UN); @flock($fp, LOCK_UN);
@fclose($fp); @fclose($fp);
@touch($filename, filemtime($this->files[$handle]));
@umask(0); @umask(0);
@chmod($filename, 0644); @chmod($filename, 0644);
} }