PHP 7.0.6 Released

    stream_copy_to_stream

    (PHP 5, PHP 7)

    stream_copy_to_stream — Copies data from one stream to another

    Description

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

    Makes a copy of up to maxlength bytes of data from the current position (or from the offset position, if specified) in source to dest. If maxlength is not specified, all remaining content in source will be copied.

    Parameters

    source

    The source stream

    dest

    The destination stream

    maxlength

    Maximum bytes to copy

    offset

    The offset where to start to copy data

    Return Values

    Returns the total count of bytes copied.

    Changelog

    Version Description
    5.1.0 Added the offset parameter

    Examples

    Example #1 A stream_copy_to_stream() example

    <?php
    $src     = fopen('http://www.example.com', 'r');
    $dest1 = fopen('first1k.txt', 'w');
    $dest2 = fopen('remainder.txt', 'w');

    echo     stream_copy_to_stream($src, $dest1, 1024) . " bytes copied to first1k.txt\n";
    echo     stream_copy_to_stream($src, $dest2) . " bytes copied to remainder.txt\n";

    ?>

    See Also

    User Contributed Notes

    none at noone dot com
    8 years ago
    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.
    felix dot nensa at gmail dot com
    5 years ago
    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
    8 years ago
    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;
    }
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