function writeConfigFile($file = null, $layer = 'user', $data = null)
{
$this->_lazyChannelSetup($layer);
if ($layer == 'both' || $layer == 'all') {
foreach ($this->files as $type => $file) {
$err = $this->writeConfigFile($file, $type, $data);
if (PEAR::isError($err)) {
return $err;
}
}
return true;
}
if (empty($this->files[$layer])) {
return $this->raiseError("unknown config file type `{$layer}'");
}
if ($file === null) {
$file = $this->files[$layer];
}
$data = $data === null ? $this->configuration[$layer] : $data;
$this->_encodeOutput($data);
$opt = array('-p', dirname($file));
if (!@System::mkDir($opt)) {
return $this->raiseError("could not create directory: " . dirname($file));
}
if (file_exists($file) && is_file($file) && !is_writeable($file)) {
return $this->raiseError("no write access to {$file}!");
}
$fp = @fopen($file, "w");
if (!$fp) {
return $this->raiseError("PEAR_Config::writeConfigFile fopen('{$file}','w') failed ({$php_errormsg})");
}
$contents = "#PEAR_Config 0.9\n" . serialize($data);
if (!@fwrite($fp, $contents)) {
return $this->raiseError("PEAR_Config::writeConfigFile: fwrite failed ({$php_errormsg})");
}
return true;
}