search.php

<?
require("redis.php");
require("json.php");

$term = $_GET['term'];

$r = new Redis("127.0.0.1","6379");
$r->connect();
$items = $r->zrangebylex("kernel","[$term","[$term\xff",Array("LIMIT","0","10"));

$t = Array();
$id = 0;
foreach($items as $item) {
    $t[] = Array("id" => $id++, "label" => $item);
}

$json = new Services_JSON();
$output = $json->encode($t);
echo($output);

?>

It is preferred to use the native functions json_encode and json_decode of PHP instead of the class Services_JSON.

Also the code below is for PHP >= 5.4

<?php
    require("redis.php");

    $term = $_GET['term'];

    $r = (new Redis("127.0.0.1","6379"))->connect();
    $items = $r->zrangebylex("kernel","[$term","[$term\xff",["LIMIT","0","10"]);

    $t = [];
    $id = 0;
    foreach($items as $item) {
        $t[] = ["id" => $id++, "label" => $item];
    }
    echo json_encode($t);

http://autocomplete.redis.io/?mkt_tok=3RkMMJWWfF9wsRonv6nBZKXonjHpfsX56u4lXKe3lMI%2F0ER3fOvrPUfGjI4ARMdmI%2BSLDwEYGJlv6SgFQ7HAMa5m3rgMWRk%3D

The demo errors:

Warning: fsockopen() [function.fsockopen]: unable to connect to 127.0.0.1:10001 (Connection refused) in /var/virtual/autocomplete.redis.io/httpdocs/redis.php on line 29

Fatal error: Cannot open socket to 127.0.0.1:10001, error 111. in /var/virtual/autocomplete.redis.io/httpdocs/redis.php on line 37

I wrote something for nodejs if anyone is interested. It uses the same jquery UI autocomplete widget as http://autocomplete.redis.io/ but it executes a function as the source value.

edit: oh and btw I'm a novice so idk how good this code is, but it works.

On the server it uses socket.io and the [redis](https://www.npmjs.org/package /redis) npm module.

server:

var redis    = require('redis');
var client   = redis.createClient();
var io       = require('socket.io')(8000);

io.on('connection', function(socket) {                                 

  socket.on('keypress', function(data, fn) {
    //DBKEY is the key to the values you want     
    client.zrangebylex(['DBKEY', '[' + data, '[' + data + 'z'],
      function (err, response) {                                       
        if (err) throw err;                                            
        fn(response);                                                  
      }                                                                
    );                                                                 
  });                                                                  

});                                                                    

client:

//set this function to be called as the `source` in the jquery autocomplete widget
function sourceFunc(request, response) {             
  socket.emit('keypress', request.term, function(data) {
    response(data);                              
  }); 
}                                                      

Hello,
could you share the source of redis.php?
every redis-php library i find, dont support "zrangebylex"

Warning: fsockopen() [For instance many configuration options can be modified without any kind of restart using the function.fsockopen]: unable to connect to 127.0.0.1:10001 (Connection refused) in /var/virtual/autocomplete.redis.io/httpdocs/redis.php on line 29

Fatal error: Cannot open socket to 127.0.0.1:10001, error 111. in /var/virtual/autocomplete.redis.io/httpdocs/redis.php on line 37

I am unsure how this works as I cannot find support for zrangebylex with PHP anywhere.

Seems like demo script doesn't work for several years :-(

You can use predis library and call ZSetRangeByLex