Become a jedi with PHP streams

1. pen4education

5. WHAT IS A
STREAM?

6. A stream is a body of water
[1]
with a current,
confined within a bed and stream banks.
Depending on its location or certain
characteristics, a stream may be referred to
as a branch, brook, beck, burn, creek, crick,
gill (occasionally ghyll), kill, lick, mill race, rill,
river, syke, bayou, rivulet, streamage, wash,
run, or runnel.
https://en.wikipedia.org/wiki/Stream

8. ?

9. DATA
FLOW

10. INPUT
OUTPUT
DATA

11. PHP

12. F* FILE*

13. fopen
fpassthru
fputcsv
fputs
fread
fscanf
fseek
fstat
ftell
ftruncate
fwrite
file_​exists
file_​get_​contents
file_​put_​contents
file
fileatime
filectime
filegroup
fileinode
filemtime
fileowner
fileperms

14. fopen
fpassthru
fputcsv
fputs
fread
fscanf
fseek
fstat
ftell
ftruncate
fwrite
file_​exists
file_​get_​contents
file_​put_​contents
file
fileatime
filectime
filegroup
fileinode
filemtime
fileowner
fileperms
RESOURCE FILE PATH

15. fopen(‘file.txt’, ‘r+’);
file_​get_​contents(
‘file.txt’
);

16. WRAPPERS

17. file:// — Accessing local filesystem
http:// — Accessing HTTP(s) URLs
ftp:// — Accessing FTP(s) URLs
php:// — Accessing various I/O streams
zlib:// — Compression Streams
data:// — Data (RFC 2397)
glob:// — Find pathnames matching pattern
phar:// — PHP Archive
ssh2:// — Secure Shell 2
rar:// — RAR
ogg:// — Audio streams

18. 1) file://

19. fopen(
‘file.txt’, ‘r+’
);
fopen(
‘file://file.txt’, ‘r+’
);
!= ?

20. 2) http://

21. print file_get_contents(
'http://marabesi.
com'
);

23. $contexto = stream_context_create([
'http' => [
'method' => 'POST'
'header' => 'Content-Type:
application/x-www-form-urlencoded',
'content' => 'livro=php'
]
]);

24. print file_get_contents(
http://marabesi.com',
false,
$context
);

25. $fp = fopen(
'http://marabesi.com',
'r',
false,
$context
);
print fgets($fp);

26. http://php.net/manual/en/context.php

27. 3) ftp://

28. $fp = fopen(
'ftp://usuario:senha' .
'@meu_servidor.com' .
'/home/matheusmarabesi/index.php',
'r'
);

30. 4) php://

31. $put = fopen(
'php://stdin, 'r'
);
print fgets($put);

33. 6) data://

34. print file_get_contents(
'data://text/plain, Utilizando o
wrapper data://'
);

35. print file_get_contents(
'data://text/plain, Utilizando o
wrapper data://'
);

36. <img src="data:
image/jpeg;base64,
YXNodXNhdXNhdWlzYXVzYWl1"
/>

37. print file_get_contents( 'data:
//text/plain;base64,
VXRpbGl6YW5kbyBzdHJlYW1zIGVtIFBIUCAh');

38. 7) glob://

40. $diretorio = new
RecursiveDirectoryIterator(
'/var/www'
);
1

41. $iterator = new
RecursiveIteratorIterator(
$diretorio
);
2

42. $arquivos = new RegexIterator(
$iterator, '/^.+.php/',
RecursiveRegexIterator::GET_MATCH
);
3

43. $diretorio = new RecursiveDirectoryIterator('/var/www');
$iterator = new RecursiveIteratorIterator($diretorio);
$arquivos = new RegexIterator(
$iterator, '/^.+.php/', RecursiveRegexIterator::GET_MATCH
);
foreach ($diretorio as $arquivos) {
print $arquivos->getFilename();
}

45. $diretorio = new
RecursiveDirectoryIterator(
'glob://var/www/*.php'
);
foreach ($diretorio as $arquivos) {
print $arquivos->getFilename();
}

46. 8) ogg://

49. 8) ogg://

50. 9) mandinga://

51. streamWrapper {
public resource $context ;
__construct ( void )
__destruct ( void )
public bool dir_closedir ( void )
public bool dir_opendir ( string $path , int $options )
public string dir_readdir ( void )
public bool dir_rewinddir ( void )
public bool mkdir ( string $path , int $mode , int $options )
public bool rename ( string $path_from , string $path_to )
public bool rmdir ( string $path , int $options )
public resource stream_cast ( int $cast_as )
public void stream_close ( void )
public bool stream_eof ( void )
public bool stream_flush ( void )
public bool stream_lock ( int $operation )
public bool stream_metadata ( string $path , int $option , mixed $value )
public bool stream_open ( string $path , string $mode , int $options , string &$opened_path
)
public string stream_read ( int $count )
public bool stream_seek ( int $offset , int $whence = SEEK_SET )
public bool stream_set_option ( int $option , int $arg1 , int $arg2 )
public array stream_stat ( void )
THERE IS MORE

52. class Mandinga {
private $arquivo;
public function stream_open($arquivo, $modo)
{
if (!file_exists($arquivo)) {
throw new Exception(
'O arquivo informado não existe'
);
$this->arquivo = fopen($arquivo, $modo);
return true;
}
}

53. public function stream_read($bytes)
{
return fread($this->file,
$bytes);
}
public function stream_eof()
{
return feof($this->file);
}

54. stream_register_wrapper
stream_wrapper_register
!= ?

55. stream_register_wrapper(
'mandinga', 'Mandinga'
);

56. stream_register_wrapper(
'mandinga', 'Mandinga'
);
ALIAS
CLASS NAME

57. print file_get_contents(
mandinga://pessoas.txt'
);