streamWrapper::dir_readdir
Read entry from directory handle
&reftitle.description;
public stringstreamWrapper::dir_readdir
This method is called in response to readdir.
&reftitle.parameters;
&no.function.parameters;
&reftitle.returnvalues;
Should return string representing the next filename, or
&false; if there is no next file.
The return value will be casted to string.
&reftitle.errors;
&userstream.not.implemented.warning;
&reftitle.examples;
Listing files from tar archives
fp = fopen($path, "rb");
return true;
}
public function dir_readdir() {
// Extract the header for this entry
$header = fread($this->fp, 512);
$data = unpack("a100filename/a8mode/a8uid/a8gid/a12size/a12mtime/a8checksum/a1filetype/a100link/a100linkedfile", $header);
// Trim the filename and filesize
$filename = trim($data["filename"]);
// No filename? We are the end of the archive
if (!$filename) {
return false;
}
$octal_bytes = trim($data["size"]);
// Filesize is defined in octects
$bytes = octdec($octal_bytes);
// tar rounds up filesizes up to multiple of 512 bytes (zero filled)
$rest = $bytes % 512;
if ($rest > 0) {
$bytes += 512 - $rest;
}
// Seek over the file
fseek($this->fp, $bytes, SEEK_CUR);
return $filename;
}
public function dir_closedir() {
return fclose($this->fp);
}
public function dir_rewinddir() {
return fseek($this->fp, 0, SEEK_SET);
}
}
stream_wrapper_register("tar", "streamWrapper");
$handle = opendir("tar://example.tar");
while (false !== ($file = readdir($handle))) {
var_dump($file);
}
echo "Rewinding..\n";
rewind($handle);
var_dump(readdir($handle));
closedir($handle);
?>
]]>
&example.outputs.similar;
&reftitle.seealso;
readdir