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gopher_parsedir

Contents

(PECL net_gopher >= 0.1)

gopher_parsedir — Translate a gopher formatted directory entry into an associative array

Description

gopher_parsedir ( string $dirent ) : array

gopher_parsedir() parses a gopher formatted directory entry into an associative array.

While gopher returns text/plain documents for actual document requests. A request to a directory (such as /) will return specially encoded series of lines with each line being one directory entry or information line.

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Parameters

dirent

The directory entry.

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Return Values

Returns an associative array whose components are:

  • type - One of the GOPHER_XXX constants.
  • title - The name of the resource.
  • path - The path of the resource.
  • host - The domain name of the host that has this document (or directory).
  • port - The port at which to connect on host.

Upon failure, the additional data entry of the returned array will hold the parsed line.

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Examples

Example #1 Hypothetical output from gopher://gopher.example.com/

0All about my gopher site.               /allabout.txt               gopher.example.com    70
9A picture of my cat.                    /pics/cat.png               gopher.example.com    70
1A collection of my writings.            /stories                    gopher.example.com    70
hThe HTTP version of this site.          URL:http://www.example.com  gopher.example.com    70
1Mirror of this site in Spain.           /                           gopher.ejemplo.co.es  70
iWelcome to my gopher site.                                          error.host            1
iPlease select one of the options above                              error.host            1
iSend complaints to /dev/null                                        error.host            1
iLong live gopher!                                                   error.host            1

In the example above, the root directory at gopher.example.com knows about one DOCUMENT identified by 0 located at gopher://gopher.example.com:70/allabout.txt. It also knows about two other directory (which have their own listing files) at gopher://gopher.exmaple.com:70/stories and at gopher://gopher.ejemplo.co.es:70/. In addition there is a binary file, a link to an HTTP url, and several informative lines.

By passing each line of the directory listing into gopher_parsedir(), an associative array is formed containing a parsed out version of the data.

Example #2 Using gopher_parsedir()

<?php
$directory = file("gopher://gopher.example.com");

foreach($directory as $dirent) {
    print_r(gopher_parsedir($dirent));
}
?>

The above example will output:

Array (
  [type] => 0
  [title] => All about my gopher site.
  [path] => /allabout.txt
  [host] => gopher.example.com
  [port] => 70
)
Array (
  [type] => 9
  [title] => A picture of my cat.
  [path] => /pics/cat.png
  [host] => gopher.example.com
  [port] => 70
)
Array (
  [type] => 1
  [title] => A collection of my writings.
  [path] => /stories
  [host] => gopher.example.com
  [port] => 70
)
Array (
  [type] => 254
  [title] => The HTTP version of this site.
  [path] => URL:http://www.example.com
  [host] => gopher.example.com
  [port] => 70
)
Array (
  [type] => 1
  [title] => Mirror of this site in Spain.
  [path] => /
  [host] => gopher.ejemplo.co.es
  [port] => 70
)
Array (
  [type] => 255
  [title] => Welcome to my gopher site.
  [path] =>
  [host] => error.host
  [port] => 1
)
Array (
  [type] => 255
  [title] => Please select one of the options above.
  [path] =>
  [host] => error.host
  [port] => 1
)
Array (
  [type] => 255
  [title] => Send complaints to /dev/null
  [path] =>
  [host] => error.host
  [port] => 1
)
Array (
  [type] => 255
  [title] => Long live gopher!
  [path] =>
  [host] => error.host
  [port] => 1
)

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Document created the 30/01/2003, last modified the 26/10/2018
Source of the printed document:https://www.gaudry.be/en/php-rf-function.gopher-parsedir.html

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References

  1. View the html document Language of the document:fr Manuel PHP : http://php.net

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