@ 2021-02-21T23:42:17Z <?php
class VariableStream {
var $position;
var $varname;
function _stream_open($path, $mode, $options, &$opened_path)
{
$url = parse_url($path);
$this->varname = $url["host"];
$this->position = 0;
return true;
}
function _stream_read($count)
{
$ret = substr($GLOBALS[$this->varname], $this->position, $count);
$this->position += strlen($ret);
return $ret;
}
function _stream_write($data)
{
$left = substr($GLOBALS[$this->varname], 0, $this->position);
$right = substr($GLOBALS[$this->varname], $this->position + strlen($data));
$GLOBALS[$this->varname] = $left . $data . $right;
$this->position += strlen($data);
return strlen($data);
}
function _stream_tell()
{
return $this->position;
}
function _stream_eof()
{
return $this->position >= strlen($GLOBALS[$this->varname]);
}
function _stream_seek($offset, $whence)
{
switch ($whence) {
case SEEK_SET:
if ($offset < strlen($GLOBALS[$this->varname]) && $offset >= 0) {
$this->position = $offset;
return true;
} else {
return false;
}
break;
case SEEK_CUR:
if ($offset >= 0) {
$this->position += $offset;
return true;
} else {
return false;
}
break;
case SEEK_END:
if (strlen($GLOBALS[$this->varname]) + $offset >= 0) {
$this->position = strlen($GLOBALS[$this->varname]) + $offset;
return true;
} else {
return false;
}
break;
default:
return false;
}
}
function _stream_metadata($path, $option, $var)
{
if($option == STREAM_META_TOUCH) {
$url = parse_url($path);
$varname = $url["host"];
if(!isset($GLOBALS[$varname])) {
$GLOBALS[$varname] = '';
}
return true;
}
return false;
}
public function __call($name, $arguments)
{
$name = '_' . $name;
if (!method_exists($this, $name)) {
return false;
}
return $this->$name(...$arguments);
}
}
stream_wrapper_register("var", "VariableStream")
or die("Failed to register protocol");
$myvar = "";
$fp = fopen("var://myvar", "r+");
fwrite($fp, "line1\n");
fwrite($fp, "line2\n");
fwrite($fp, "line3\n");
rewind($fp);
while (!feof($fp)) {
echo fgets($fp);
}
fclose($fp);
var_dump($myvar);
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Output for 8.2.0 - 8.2.19 , 8.3.0 - 8.3.4 , 8.3.6 - 8.3.7 Deprecated: Creation of dynamic property VariableStream::$context is deprecated in /in/QBBel on line 105
line1
line2
line3
string(18) "line1
line2
line3
"
Output for 8.3.5 Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
Deprecated: Creation of dynamic property VariableStream::$context is deprecated in /in/QBBel on line 105
line1
line2
line3
string(18) "line1
line2
line3
"
Output for 7.3.0 - 7.3.33 , 7.4.0 - 7.4.33 , 8.0.0 - 8.0.30 , 8.1.0 - 8.1.28 line1
line2
line3
string(18) "line1
line2
line3
"
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177.08 ms | 402 KiB | 154 Q