convert_uuencode

(PHP 5)

convert_uuencode — Codifica com uuencode uma string

Descrição

string convert_uuencode ( string $data )

convert_uuencode() codifica uma string usando o algoritmo uuencode.

Uuencode traduz toda string (incluindo binários) em caracteres imprimíveis, fazendo eles seguro para transmissão em rede. Dados uuencoded fica 35% maior que o original.

Parâmetros

data: A informação a ser codificada.

Valor Retornado

Retorna os dados convertidos com uuencode.

Exemplos

Exemplo #1 Exemplo da convert_uuencode()


<?php
$some_string = "test\ntext text\r\n";

echo convert_uuencode($some_string);
?>

Veja Também

convert_uudecode() - Decodifica uma string codificada com uuencode
base64_encode() - Codifica dados com MIME base64

count_chars

convert_uudecode

[edit] Last updated: Fri, 24 Feb 2012

add a note User Contributed Notes convert_uuencode

abc518 at gmail dot com 26-Sep-2008 01:06


Using uuencode for passwords isn't any more secure than plain text (maybe slightly: non-developers or too lazy to figure out what you used). mcrypt or even md5 is much more secure.

zash at zash dot se 30-May-2008 12:30


note that using base64 or uuencode to store data in a database is pretty useless. if you properly escape your data and use a binary field (BLOB etc) there is no problem.

allali at labri dot fr 02-Apr-2008 12:06


if you want to use convert_uuencode with command uudecode you must insert a line "begin %s %s\n" at the beginning and "end\n" at the end:



<?php



echo "begin 644 hello.txt\n";

echo convert_uuencode("hello");

echo "end\n";



?>



the first arg. after begin is the mode (destination file rights), the second is the destination file name.



Then you can do a wget followed by a uudecode.



JA.

root at mantoru dot de 10-Nov-2007 09:29


@Craig's note: base64_encode() is better suited for that. In fact, it produces smaller output and operates slightly faster. I did a little benchmark -- here are my findings:



File: JPG, 631614 bytes



== Base64 ==

execution time: 0.0039639472961426 secs

output length: 842152



== UUencode ==

execution time: 0.004105806350708 secs

output length: 870226

tmaschler at NOSPAM dot ditf-denkendorf dot de 20-Sep-2006 01:46


Note to the tip of Craig at frostycoolslug dot com: 



If you are using fulltext functionality on columns with uuencoded texts, collations will not work. You might prefer to pass the text escaped to the database engine.

nmmm at nmmm dot nu 12-Apr-2006 08:17


uuencode is recognisable as email attachment in Ms Outlook, but in Outlook Express (at least in older versions) - is not.



This is shell script, but it may give you an idea how you can send attachments using uuencode:



cat file.bin | uuencode file.bin | mail someone@domain.com -s "file.bin"



uuencode mail attachments from other point of wiev are deprecated. However I use such technic for years now and it work well.

aidan at php dot net 29-May-2005 08:51


This functionality is now implemented in the PEAR package PHP_Compat.



More information about using this function without upgrading your version of PHP can be found on the below link:



http://pear.php.net/package/PHP_Compat

Craig at frostycoolslug dot com 08-Aug-2004 07:15


This function can be useful if you wish to store files in a MySQL database, it will save any problems with obscure binary data breaking the queries.



just remember to convery-uudecode before you try to use the data again.



(A common example of something that uses this system, would be email attachments)

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