/**
* Safely opens a PHP stream resource using a filename.
*
* When fopen fails, PHP normally raises a warning. This function adds an
* error handler that checks for errors and throws an exception instead.
*
* @param string $filename File to open
* @param string $mode Mode used to open the file
*
* @return resource
* @throws RuntimeException if the file cannot be opened
*/
public static function open($filename, $mode)
{
self::$_open_filename = $filename;
self::$_open_mode = $mode;
self::$_open_ex = null;
set_error_handler(array('puzzle_stream_Utils', '___error_handler'));
$handle = fopen($filename, $mode);
restore_error_handler();
if (self::$_open_ex) {
throw self::$_open_ex;
}
return $handle;
}
