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core.php
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core.php
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<?php
//No register globals
ini_set('register_globals', 'off');
//error_reporting(E_ALL & ~E_NOTICE);
error_reporting(E_ALL & ~E_NOTICE);
//Load libraries
include_once("config.php"); //Site config
include_once("error.php"); //Error management
include_once("mysql.php"); //MySQL layer
include_once("sessions.php"); //Sessions handler
//Helpers
//Gets username from specified user_id
function get_name ($id) {
global $db;
$sql = 'SELECT perso_nickname FROM '. TABLE_PERSOS . " WHERE perso_id = '$id'";
if (!$result = $db->sql_query($sql)) message_die(SQL_ERROR, "Can't query persos table.", '', __LINE__, __FILE__, $sql);
$row = $db->sql_fetchrow($result);
return $row['perso_nickname'];
}
//Gets user_id from specified username
function get_userid ($username) {
global $db;
$username = $db->sql_escape($username);
$sql = 'SELECT user_id FROM '. TABLE_USERS . " WHERE username LIKE '$username'";
if (!$result = $db->sql_query($sql)) message_die(SQL_ERROR, "Can't query users table.", '', __LINE__, __FILE__, $sql);
$row = $db->sql_fetchrow($result);
return $row['user_id'];
}
// ------------------------------------------------------------------------- //
// Chaîne aléatoire //
// ------------------------------------------------------------------------- //
// Auteur: Pierre Habart //
// Email: p.habart@ifrance.com //
// Web: //
// ------------------------------------------------------------------------- //
function genereString($format)
{
mt_srand((double)microtime()*1000000);
$str_to_return="";
$t_alphabet=explode(",","A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z");
$t_number=explode(",","1,2,3,4,5,6,7,8,9,0");
for ($i=0;$i<strlen($format);$i++)
{
if (ereg("^[a-zA-Z]",$format[$i]))
{
$add=$t_alphabet[mt_rand() % sizeof($t_alphabet)];
if (ereg("^[a-z]",$format[$i]))
$add=strtolower($add);
}
elseif(ereg("^[0-9]",$format[$i]))
$add=$t_number[mt_rand() % sizeof($t_number)];
else $add="?";
$str_to_return.=$add;
}
return $str_to_return;
}
function generer_hexa($longueur) {
mt_srand((double)microtime()*1000000);
$str_to_return="";
$t_number=explode(",","1,2,3,4,5,6,7,8,9,0,A,B,C,D,E,F");
for ($i = 0 ; $i < $longueur ; $i++) {
$str_to_return .= $t_number[mt_rand() % sizeof($t_number)];
}
return $str_to_return;
}
//Plural management
function s ($amount) {
if ($amount > 1) return "s";
}
function x ($amount) {
if ($amount > 1) return "x";
}
//Debug
function dprint_r ($mixed) {
echo "<pre>", print_r($mixed, true), "</pre>";
}
//GUID
function new_guid() {
$characters = explode(",","a,b,c,d,e,f,0,1,2,3,4,5,6,7,8,9");
$guid = "";
for ($i = 0 ; $i < 36 ; $i++) {
if ($i == 8 || $i == 13 || $i == 18 || $i == 23) {
$guid .= "-";
} else {
$guid .= $characters[mt_rand() % sizeof($characters)];
}
}
return $guid;
}
function is_guid ($expression) {
//We avoid regexp to speed up the check
//A guid is a 36 characters string
if (strlen($expression) != 36) return false;
$expression = strtolower($expression);
for ($i = 0 ; $i < 36 ; $i++) {
if ($i == 8 || $i == 13 || $i == 18 || $i == 23) {
//with dashes
if ($expression[$i] != "-") return false;
} else {
//and numbers
if (!is_numeric($expression[$i]) && $expression[$i] != 'a' && $expression[$i] != 'b' && $expression[$i] != 'c' && $expression[$i] != 'd' && $expression[$i] != 'e' && $expression[$i] != 'f' ) return false;
}
}
return true;
}
//Gets file extension
function get_extension ($file) {
$dotPosition = strrpos($file, ".");
return substr($file, $dotPosition + 1);
}
/*
* Loads specified language Smarty configuration file
*
* @param string $file the file to load
* @param mixed $sections array of section names, single section or null
*/
function lang_load ($file, $sections = null) {
global $smarty;
//Loads English file as fallback if some parameters are missing
if (file_exists("lang/en/$file"))
$smarty->config_load("lang/en/$file", $sections);
//Loads wanted file
if (LANG != 'en' && file_exists('lang/' . LANG . '/' . $file))
$smarty->config_load('lang/' . LANG . '/' . $file, $sections);
}
/*
* Gets a specified language expression defined in configuration file
*
* @param string $key the configuration key matching the value to get
* @return string The value in the configuration file
*/
function lang_get ($key) {
global $smarty;
$smartyConfValue = $smarty->config_vars[$key];
return $smartyConfValue ? $smartyConfValue : "#$key#";
}
/*
* Converts a YYYYMMDD or YYYY-MM-DD timestamp to unixtime
*/
function to_unixtime ($timestamp) {
switch (strlen($timestamp)) {
case 8:
//YYYYMMDD
return mktime(0, 0, 0, substr($timestamp, 4, 2), substr($timestamp, 6, 2), substr($timestamp, 0, 4));
case 10:
//YYYY-MM-DD
return mktime(0, 0, 0, substr($timestamp, 5, 2), substr($timestamp, 8, 2), substr($timestamp, 0, 4));
default:
throw new Exception("timestamp is not a valid YYYYMMDD or YYYY-MM-DD timestamp: $timestamp");
}
}
/*
* Converts a unixtime to the YYYYMMDD or YYYY-MM-DD timestamp format
*
* @param int $unixtime the time to convert
* @param int $format 8 or 10. If 8 (default), will output YYYYMMDD. If 10, YYYY-MM-DD.
*/
function to_timestamp ($unixtime = null, $format = 8) {
//If no parameter is specified (or null, or false), current time is used
//==== allows to_timestamp(0) to return correct 1970-1-1 value.
if ($unixtime === null || $unixtime === false) $unixtime = time();
switch ($format) {
case 8:
//YYYYMMDD
return date('Ymd', $unixtime);
case 10:
//YYYY-MM-DD
return date('Y-m-d', $unixtime);
default:
throw new Exception("format must be 8 (YYYYMMDD) or 10 (YYYY-MM-DD) and not $format.");
}
}
/*
* Converts a unixtime to the Hypership time format.
*/
function get_hypership_time ($unixtime = null) {
//If unixtime is not specified, it's now
if ($unixtime === null) $unixtime = time();
//Hypership time is a count of days since launch @ 2010-01-25 00:00:00
//Followed by a fraction of the current day /1000, like the internet time
//but in UTC timezone and not Switzerland CET/CEST.
//We don't need to use floor(), as we output the result at int, truncating
//automatically decimal values instead of round it (like in C).
$seconds = $unixtime - 1264377600;
$days = $seconds / 86400;
$fraction = ($seconds % 86400) / 86.4;
return sprintf("%d.%03d", $days, $fraction);
}
/*
* Gets URL
*/
function get_url () {
global $Config;
if (func_num_args() > 0) {
$pieces = func_get_args();
return $Config['BaseURL'] . '/' . implode('/', $pieces);
} elseif ($Config['BaseURL'] == "" || $Config['BaseURL'] == "/index.php") {
return "/";
} else {
return $Config['BaseURL'];
}
}
?>

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