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|
--TEST--
Getting executable lines from custom wrappers
--PHPDBG--
r
q
--EXPECTF--
[Successful compilation of %s]
prompt> array(1) {
[5]=>
int(0)
}
[Script ended normally]
prompt>
--FILE--
<?php
/**
* This example demonstrates how phpdbg_get_executable() behaves differently
* when passed the 'files' option vs without, in the face of some mild abuse
* of stream wrappers.
*/
/**
* First, we define a stream wrapper that simply maps to a real file on disk.
*/
final class StreamWrapper
{
public $context;
public function stream_open(
string $path,
string $mode,
int $options = 0,
?string &$openedPath = null
) : bool {
if ($mode[0] !== 'r') {
return false;
}
list($scheme, $path) = explode('://', $path, 2);
$stream = \fopen($path, $mode);
if ($stream === false) {
return false;
}
$this->stream = $stream;
/**
* The $openedPath reference variable is assigned, indicating the
* *actual* path that was opened. This affects the behaviour of
* constants like __FILE__.
*/
$openedPath = \realpath($path);
return true;
}
public function stream_read(int $count) : string { return \fread($this->stream, $count); }
public function stream_close() : bool { return \fclose($this->stream); }
public function stream_eof() : bool { return \feof($this->stream); }
public function stream_stat() { return \fstat($this->stream); }
public function stream_set_option($option, $arg1, $arg2) { return false; }
private $stream = false;
}
stream_wrapper_register('wrapper', StreamWrapper::class);
/**
* Next, we include a PHP file that contains executable lines, via the stream
* wrapper.
*/
$filename = __DIR__ . DIRECTORY_SEPARATOR . 'phpdbg_get_executable_stream_wrapper.inc';
require 'wrapper://' . $filename;
/**
* If we call phpdbg_get_executable() and pass no options, the realpath of the
* included file is present in the array, but indicates no executable lines.
*/
$x = phpdbg_get_executable();
// We expect [5 => 0], but got an empty array ...
var_dump($x[$filename]);
?>
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