<?php
require 'vendor/autoload.php';
Predis\Autoloader::register();
$client = new Predis\Client(array('host' => '127.0.0.1', 'port' => 6379), array('prefix' => 'php:'));
$client->set("string:my_key", "Hello World");
$client->get("string:my_key");
# "Hello World"
$client->incr("string:counter");
$client->mget(array("string:my_key", "string:counter"));
# array('Hello World', '2')
$client->rpush("list:my_list", "item1", "item2");
$client->lpop("list:my_list");
# 'item1'
$client->hset("set:redis_book", "title", "Redis Essentials");
$client->hgetall("set:redis_book");
# array('title' => 'Redis Essentials')
$client->sadd("set:users", "alice", "bob");
$client->smembers("set:users");
# array('bob', 'alice')
$client->zadd("sorted_set:programmers", 1940, "Alan Kay");
$client->zadd("sorted_set:programmers", 1912, "Alan Turing");
$client->zrange("sorted_set:programmers", 0, -1, "withscores");
# array('Alan Turing' => 1912, 'Alan Kay' => 1940)
<?php
/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
/**
* Description of incr
*
* @author changdi
*/
//require __DIR__.'/shared.php';
require '../shared.php';
$predis = new Predis\Client($single_server);
var_dump($predis->get('key'));
var_dump($predis->incr('key'));
//var_dump($predis->incr('key',15));
var_dump($predis->decr('key'));
// Check entry value.
echo ">>> Value for 'k1': " . $redis->get('k1') . "\n";
// Change entry's value.
if ($redis->set('k1', 'new_value')) {
echo ">>> Successfully put entry in cache. \n";
}
// Check entry value.
echo ">>> Value for 'k1': " . $redis->get('k1') . "\n";
// Put entry to cache.
if ($redis->set('k2', '2')) {
echo ">>> Successfully put entry in cache. \n";
}
// Check entry value.
echo ">>> Value for 'k2': " . $redis->get('k2') . "\n";
// Get two entries.
$val = $redis->mget('k1', 'k2');
echo ">>> Value for 'k1' and 'k2': " . var_dump($val) . "\n";
// Delete on entry.
if ($redis->del('k1')) {
echo ">>> Successfully deleted 'k1'. \n";
}
// Db size.
echo ">>> Db size: " . $redis->dbsize() . "\n";
// Increment.
echo ">>> Incremented: " . $redis->incr("inc_k") . "\n";
// Increment by 5.
echo ">>> Incremented: " . $redis->incrby("inc_k", 5) . "\n";
} catch (Exception $e) {
echo ">>> Couldn't connected to Redis.";
echo $e->getMessage();
}
'port' => 6379
));
}
catch (Exception $e) {
//die($e->getMessage());
}
if(isset($url[1]) && $url[1] == 'visits') {
$i_visits = $redis->get("visits");
echo json_encode(array('total_visits' => $i_visits));die();
} elseif($url[1] == 'reset.php') {
if(isset($url[2]) && $url[2] > 0) $redis->set("visits", $url[2]);
else $redis->set("visits", 0);
}
$redis->incr("visits");
$i_visits = $redis->get("visits");
// get zone
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, "http://metadata.google.internal/computeMetadata/v1/instance/zone");
curl_setopt($ch, CURLOPT_HTTPHEADER, array(
'Metadata-Flavor: Google'
));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$output = curl_exec($ch);
curl_close($ch);
if(isset($output) && !(empty($output))) {
$a_zone = explode('/', $output);
$zone = end($a_zone);
<?php
# N.B. : Predis is rediculously slow, but it's easier than installing binaries for the presentation:
# http://alekseykorzun.com/post/53283070010/benchmarking-memcached-and-redis-clients
require 'predis/lib/Predis/Autoloader.php';
Predis\Autoloader::register();
$redis = new Predis\Client();
// Really simple way to set a key/value pair
$redis->set('foo', 'bar');
$value = $redis->get('foo');
echo $value . "\n";
// There's no UPDATE commands where we're going! Just set it again.
$redis->set('foo', 'baz');
$value = $redis->get('foo');
echo $value . "\n";
// Here we go incrementing unset values. No need to run messy UPSERT stuff.
echo "You've run this script " . $redis->incr('counter') . " times btw.\n";
// Tom is a simple associative array
$tom = array('name' => 'Thomas Hunter', 'age' => 27, 'height' => 165);
// The predis library makes setting hashes easy
$redis->hmset('tom', $tom);
// Now lets load that hash
$tom = $redis->hgetall('tom');
// As you can see, the object is exactly the same
var_dump($tom);
echo "\n";
// We can get a single field from our hash if we want
$tomsage = $redis->hget('tom', 'age');
echo "Tom is {$tomsage} years old.\n";
// We can increment a single field from the hash as well
$redis->hincrby('tom', 'age', '10');
$tom = $redis->hgetall('tom');
public function get_ohlc($pair, $start, $end, $bid_offer, $timeslice, $lag = 0)
{
//to seconds factor lookup
$this->to_seconds_factor['s'] = 1;
$this->to_seconds_factor['m'] = 60;
$this->to_seconds_factor['h'] = 60 * 60;
$this->to_seconds_factor['d'] = 60 * 60 * 24;
//predis class
require 'Predis/lib/Predis/Autoloader.php';
Predis\Autoloader::register();
// set some utility variables
$range = $end - $start;
$startTime = gmstrftime('%Y-%m-%d %H:%M:%S', $start / 1000);
$endTime = gmstrftime('%Y-%m-%d %H:%M:%S', $end / 1000);
//set suggested timeslice depending on range
//[1s,5s,10s,20s,30s,1m,5m,10m,20m,30m,1h,2h,3h,6h,1d,1w,1M]
if (!isset($timeslice)) {
$stick_threshold = 300;
//on screen count threshold
//seconds
if ($range < $stick_threshold * 1000) {
$timeslice = '1s';
} elseif ($range < $stick_threshold * 5 * 1000) {
$timeslice = '5s';
} elseif ($range < $stick_threshold * 10 * 1000) {
$timeslice = '10s';
} elseif ($range < $stick_threshold * 20 * 1000) {
$timeslice = '20s';
} elseif ($range < $stick_threshold * 30 * 1000) {
$timeslice = '30s';
//minutes
} elseif ($range < $stick_threshold * 60 * 1000) {
$timeslice = '1m';
} elseif ($range < $stick_threshold * 60 * 5 * 1000) {
$timeslice = '5m';
} elseif ($range < $stick_threshold * 60 * 10 * 1000) {
$timeslice = '10m';
} elseif ($range < $stick_threshold * 60 * 20 * 1000) {
$timeslice = '20m';
} elseif ($range < $stick_threshold * 60 * 30 * 1000) {
$timeslice = '30m';
//hour
} elseif ($range < $stick_threshold * 60 * 60 * 1000) {
$timeslice = '1h';
} elseif ($range < $stick_threshold * 60 * 60 * 2 * 1000) {
$timeslice = '2h';
} elseif ($range < $stick_threshold * 60 * 60 * 3 * 1000) {
$timeslice = '3h';
} elseif ($range < $stick_threshold * 60 * 60 * 6 * 1000) {
$timeslice = '6h';
//day
} elseif ($range < $stick_threshold * 60 * 60 * 24 * 1000) {
$timeslice = '1d';
//week
} elseif ($range < $stick_threshold * 60 * 60 * 7 * 1000) {
$timeslice = '1w';
//month
} else {
$timeslice = '1M';
}
}
//validate and parse timeslice
if (!preg_match('/^(?P<dur>\\d+)(?P<len>s|m|h|d|w|M)$/', $timeslice, $matches)) {
die("Invalid timeslice parameter: {$timeslice}");
}
//timeslice duration (1,2,3,4,..)
$ts_duration = $matches['dur'];
//timeslice length (s,m,h,d,w,M)
$ts_len = $matches['len'];
//check durations modulus of parent
//60 seconds in a minute and 60 minute in an hour
if (in_array($ts_len, array('s', 'm'))) {
if (60 % $ts_duration != 0) {
//not evenly divisable by 60
die("Invalid 1timeslice parameter: {$ts_duration}{$ts_len}");
}
}
//24 hours in day
if (in_array($ts_len, array('h'))) {
if (24 % $ts_duration != 0) {
//not evenly divisable by 24
die("Invalid timeslice parameter: {$ts_duration}{$ts_len}");
}
}
//max 2 day|week|month
if (in_array($ts_len, array('d', 'w', 'M'))) {
if ($ts_duration > 2) {
//not valid duration
die("Invalid timeslice parameter: {$ts_duration}{$ts_len}");
}
}
//check are not cacheing week and month
$is_caching = in_array($ts_len, array('w', 'M')) ? false : true;
//add lag
if ($lag > 0) {
if (!in_array($ts_len, array('w', 'M'))) {
//to sec
$sec = $this->to_seconds_factor[$ts_len] * $ts_duration;
//lag start
$start = (ceil($start / 1000 / $sec) * $sec - $sec * $lag) * 1000;
} else {
if ($ts_len == 'w') {
$date = date_create_from_format('U', $start);
date_sub($date, date_interval_create_from_date_string("{$lag} weeks"));
}
if ($ts_len == 'M') {
$date = date_create_from_format('U', $start);
date_sub($date, date_interval_create_from_date_string("{$lag} months"));
}
//save new start
$start = date_format($date, 'U') * 1000;
}
}
//if no week or Month, round start/end time to match candle length
if (!in_array($ts_len, array('w', 'M'))) {
//to sec
$sec = $this->to_seconds_factor[$ts_len] * $ts_duration;
//round up start time, round down end time
$startTime = date('Y-m-d H:i:s', ceil($start / 1000 / $sec) * $sec);
//round down end time
$endTime = date('Y-m-d H:i:s', floor($end / 1000 / $sec) * $sec + $sec - 1);
}
//init vars
$time_slices = array();
$result = array();
$ranges = array();
$cache = array();
$time_slices = array();
$empty_time_slices = array();
$is_cache_miss = false;
$redis = new Predis\Client();
$redis_zset = "{$pair}:{$bid_offer}:{$timeslice}";
//query redis cache
if ($is_caching) {
//get list of expected time slices
$time_slices = $this->buildTimeSlices($ts_len, $ts_duration, $start / 1000, $end / 1000);
//check redis cache
$return = $redis->zrangebyscore($redis_zset, $start / 1000, $end / 1000, array('withscores' => true));
//build cache datastructure
foreach ($return as $row) {
$cache[$row[1]] = $row[0];
}
//get empty timeslices
$return = $redis->zrangebyscore('empty:' . $redis_zset, $start / 1000, $end / 1000, array('withscores' => true));
//remove empty timeslices from time_slices
foreach ($return as $row) {
unset($time_slices[$row[1]]);
}
//find missing slices
$cache_miss_slices = array_diff_key($time_slices, $cache);
//check for cache misses
if (count($cache_miss_slices) > 0) {
$is_cache_miss = true;
$redis->incr('cache_misses');
//get ranges for missing slices
$ranges = $this->buildRangeFromMissingTimeSlices($ts_len, $ts_duration, $cache_miss_slices);
} else {
$redis->incr('cache_hits');
$results = $cache;
}
} else {
//build full range
$ranges[] = array('startTime' => $startTime, 'endTime' => $endTime);
}
//hit database if we are not caching or if we have a cache miss
if (!$is_caching || $is_cache_miss) {
//db
$return = $this->fetchMySQLAndCache($ts_len, $ts_duration, $is_cache_miss ? $cache_miss_slices : $time_slices, $ranges, $is_caching, $redis, $redis_zset, $pair, $bid_offer);
//add missing slices to cache obj
if ($is_cache_miss) {
foreach ($return as $row) {
extract($row);
$cache[$datetime] = "[{$datetime},{$open},{$high},{$low},{$close},{$vol}]";
}
//sort by key (timestamp)
ksort($cache);
$results = $cache;
} else {
//build non cached results results
foreach ($return as $row) {
extract($row);
$results[] = "[{$datetime},{$open},{$high},{$low},{$close},{$vol}]";
}
}
}
return $results;
}
/**
*Saves the value in redis-server using Predis class object
*
*/
private function saveUsingPredis()
{
require __DIR__ . "/../vendor/predis/predis/autoload.php";
\Predis\Autoloader::register();
$redis = new \Predis\Client();
if ($redis->get('counter') == NULL) {
$redis->set('counter', 0);
} else {
$redis->incr('counter');
}
$redis->set($redis->get('counter'), $this->value);
}
public static function metricsVerb()
{
# grab the arguments. this function has variable arguments.
# the first argument is assumed to be the metrics "verb" being requested.
# the remaining argument are assumed to be the arguments to the "verb".
require "Predis/Autoloader.php";
Predis\Autoloader::register();
if (func_num_args() == 0) {
return -599;
# incorrect number of arguements
} else {
$params = func_get_args();
}
$verbName = $params[0];
# ...and hookup with redis
try {
$redis = new Predis\Client(array("host" => "127.0.0.1", "port" => 6379, "database" => 8));
} catch (Exception $e) {
die($e->getMessage());
}
# pull in verb information, checking that verb is available and correct in the process
$verb = $redis->hgetall($verbName);
if (!$verb) {
return -500;
}
# verb not found
# pull in the remaining arguments
if (func_num_args() != $verb['args']) {
return -599;
# incorrect number of arguments
}
# compose the query
$query = "{$verbName}_";
for ($i = 1; $i < count($params); $i++) {
$query = $query . "{$params[$i]}";
}
# Validation test - parameters
$verbDate = new Datetime("{$params[1]}-{$params[2]}-01");
# Grab the list of databases needed by this verb and calculate the minimum date range
# over which a calculation can be performed.
$minDate = new Datetime("1970-1-1");
$maxDate = new Datetime("3000-1-1");
foreach (explode(',', $verb['databases']) as $db) {
$dbInfo = $redis->hgetall($db);
$dbMin = new Datetime($dbInfo['minDate']);
$dbMax = new Datetime($dbInfo['maxDate']);
if ($dbMin > $minDate) {
$minDate = $dbMin;
}
if ($dbMax < $maxDate) {
$maxDate = $dbMax;
}
}
if ($verbDate < $minDate or $verbDate > $maxDate) {
return -501;
}
# parameter out of range
# Validation test - is there an answer for this query in the cache?
# if not, kick off a backend job to calculate one.
$result = $redis->hgetall($query);
if (!$result) {
call_user_func_array("celerySubmit", $params);
return -401;
# result unavailable, calculating result now, come back later
}
# Validation test - software version
# If the result's software version number does not match the verb's version number, re-compute
if ($result['software'] != $verb['version']) {
call_user_func_array("celerySubmit", $params);
return -402;
# result out of date, calculating updated result now, come back later
}
# Validation test - database version
# if any of the results' database version number(s) do not match the database(s)'s version number(s), re-compute
foreach (explode(',', $verb['databases']) as $db) {
$dbInfo = $redis->hgetall($db);
if ($dbInfo['version'] != $result[$db]) {
call_user_func_array("celerySubmit", $params);
return -402;
# result out of date, calculating updated result now, come back later
}
}
# It's all good. Increment the popularity counter and return the cached value.
$redis->incr('pop_${query}');
return $result['value'];
}
<?php
include_once '../../common.php';
include_once S_ROOT . './source/function_space.php';
include_once 'verify.php';
$uid = $_SGLOBAL['supe_uid'];
$result = array();
$query = $_SGLOBAL['db']->query("select avatar,name,username from " . tname('space') . " where uid='{$uid}' LIMIT 1");
if ($rs = $_SGLOBAL['db']->fetch_array($query)) {
require 'Predis/Autoloader.php';
Predis\Autoloader::register();
$client = new Predis\Client();
$keyT = 'ihome_T' . $uid;
$client->incr($keyT);
if (empty($rs['name'])) {
$rs['name'] = $rs['username'];
}
$name = $rs['name'];
if ($rs['avatar']) {
$face = avatar($uid, 'big', TRUE);
} else {
$query = $_SGLOBAL['db']->query("SELECT sex FROM " . tname('spacefield') . " WHERE uid='{$uid}' LIMIT 1");
if ($gd = $_SGLOBAL['db']->result($query)) {
if ($gd == 1) {
$gender = 'm';
} else {
$gender = 'f';
}
} else {
$gender = "m";
}