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stream_encoding> <stream_context_set_params
Last updated: Fri, 20 May 2011

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stream_copy_to_stream

(PHP 5)

stream_copy_to_streamCopia información desde un flujo a otro

Descripción

int stream_copy_to_stream ( resource $source , resource $dest [, int $maxlength = -1 [, int $offset = 0 ]] )

Hace una copia de hasta maxlength bytes de información desde la posición actual (o desde la posición de offset, si se especifica) desde source a dest. Si no se especifica maxlength, todo el contenido restante de source será copiado.

Parámetros

source

El flujo de origen

dest

El flujo de destino

maxlength

Máximos bytes a copiar

offset

El índice donde comenzar a copiar información

Valores devueltos

Devuelve la cuenta total de bytes copiados.

Historial de cambios

Versión Descripción
5.1.0 Se añadió el parámetro offset

Ejemplos

Example #1 Un ejemplo de stream_copy_to_stream()

<?php
$origen   
fopen('http://www.example.com''r');
$destino1 fopen('primer1k.txt''w');
$destino2 fopen('resto.txt''w');

echo 
stream_copy_to_stream($origen$destino11024) . " bytes copiados a primer1k.txt\n";
echo 
stream_copy_to_stream($origen$destino2) . " bytes copiados a resto.txt\n";

?>

Ver también



stream_encoding> <stream_context_set_params
Last updated: Fri, 20 May 2011
 
add a note add a note User Contributed Notes stream_copy_to_stream
felix dot nensa at gmail dot com 26-May-2010 11:57
As stream_copy_to_stream() seems to be quite a memory hog (at least in PHP 5.1.6 64-bit) it may be way more efficient just to copy streams with this simple PHP alternative:

<?php

   
function pipe_streams($in, $out)
    {
       
$size = 0;
        while (!
feof($in)) $size += fwrite($out,fread($in,8192));
        return
$size;
    }

?>
sundance2001 guess what gmail.com 25-Jul-2007 01:54
If you need to copy a file from any website into yours you can use following function:

function getUrlContents($url)
{
   $url_parsed = parse_url($url);

   $host = $url_parsed["host"];
   if ($url == '' || $host == '') {
       return false;
   }
   $port = 80;
   $path = (empty($url_parsed["path"]) ? '/' : $url_parsed["path"]);
   $path.= (!empty($url_parsed["query"]) ? '?'.$url_parsed["query"] : '');
   $out = "GET $path HTTP/1.0\r\nHost: $host\r\nConnection: Close\r\n\r\n";
   $fp = fsockopen($host, $port, $errno, $errstr, 30);
   fwrite($fp, $out);
   $headers = '';
   $content = '';
   $buf = '';
   $isBody = false;
  while (!feof($fp) and !$isBody) {
          $buf = fgets($fp, 1024);
          if ($buf == "\r\n" ) {$isBody = true;}
          else{$headers .= $buf;}
          }
          $file1 = fopen(basename($url_parsed["path"]), 'w');
          $bytes=stream_copy_to_stream($fp,$file1);
   fclose($fp);
   return $bytes;
}
none at noone dot com 15-Jun-2007 11:27
stream_copy_to_stream almost copies a stream...

$objInputStream = fopen("php://input", "rb");
$objTempStream = fopen("php://temp", "w+b");
stream_copy_to_stream($objInputStream, $objTempStream);

That code will copy a stream but it will also move the stream pointers to EOF.  This is fine if you plan on rewinding the temp stream but good luck rewinding the input stream.

rewind($objTempStream);
rewind($objInputStream);

So as you can see this is stream copy or stream move depending on what kind of stream you are working with, and because there are no peaking functions your effed if you need to read from an input stream in multiple classes that are unrelated.

 
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