dolibarr/htdocs/lib/functions2.lib.php

<?php
/* Copyright (C) 2008 Laurent Destailleur         <eldy@users.sourceforge.net>
 * Copyright (C) 2008 Raphael Bertrand (Resultic) <raphael.bertrand@resultic.fr>
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 * or see http://www.gnu.org/
 */

/**
 *	\file			htdocs/lib/functions2.lib.php
 *	\brief			A set of functions for Dolibarr
 *					This file contains all rare functions.
 *	\version		$Id$
 */


/**
 * 	\brief		Return lines of an html table from an array
 * 	\remarks	Used by array2table function only
 */
function array2tr($data,$troptions='',$tdoptions=''){
	$text = '<tr '.$troptions.'>' ;
	foreach($data as $key => $item){
		$text.= '<td '.$tdoptions.'>'.$item.'</td>' ;
	}
	$text.= '</tr>' ;
	return $text ;
}

/**
 * 	\brief	Return an html table from an array
 */
function array2table($data,$tableMarkup=1,$tableoptions='',$troptions='',$tdoptions=''){
	$text='' ;
	if($tableMarkup) $text = '<table '.$tableoptions.'>' ;
	foreach($data as $key => $item){
		if(is_array($item)){
			$text.=array2tr($item,$troptions,$tdoptions) ;
		} else {
			$text.= '<tr '.$troptions.'>' ;
			$text.= '<td '.$tdoptions.'>'.$key.'</td>' ;
			$text.= '<td '.$tdoptions.'>'.$item.'</td>' ;
			$text.= '</tr>' ;
		}
	}
	if($tableMarkup) $text.= '</table>' ;
	return $text ;
}


/**
 * Return next value for a mask
 *
 * @param unknown_type $db
 * @param 	$mask
 * @param unknown_type $table
 * @param unknown_type $field
 * @param unknown_type $where			To add a filter on selection (for exemple to filter for invoice types)
 * @param unknown_type $valueforccc
 * @param unknown_type $date
 * @return 	string		New value
 */
function get_next_value($db,$mask,$table,$field,$where='',$valueforccc='',$date='')
{
	// Clean parameters
	if ($date == '') $date=time();
	
	// Extract value for mask counter, mask raz and mask offset
	if (! eregi('\{(0+)([@\+][0-9]+)?([@\+][0-9]+)?\}',$mask,$reg)) return 'ErrorBadMask';
	$masktri=$reg[1].$reg[2].$reg[3];
	$maskcounter=$reg[1];
	$maskraz=-1;
	$maskoffset=0;
	if (strlen($maskcounter) < 3) return 'CounterMustHaveMoreThan3Digits';

	// Extract value for third party mask counter
	if (eregi('\{(c+)(0*)\}',$mask,$regClientRef))
	{
		$maskrefclient=$regClientRef[1].$regClientRef[2];
		$maskrefclient_maskclientcode=$regClientRef[1];
		$maskrefclient_maskcounter=$regClientRef[2];
		$maskrefclient_maskoffset=0; //default value of maskrefclient_counter offset
		$maskrefclient_clientcode=substr($valueforccc,0,strlen($maskrefclient_maskclientcode));//get n first characters of client code to form maskrefclient_clientcode
		$maskrefclient_clientcode=str_pad($maskrefclient_clientcode,strlen($maskrefclient_maskclientcode),"#",STR_PAD_RIGHT);//padding maskrefclient_clientcode for having exactly n characters in maskrefclient_clientcode
		$maskrefclient_clientcode=dol_string_nospecial($maskrefclient_clientcode);//sanitize maskrefclient_clientcode for sql insert and sql select like
		if (strlen($maskrefclient_maskcounter) > 0 && strlen($maskrefclient_maskcounter) < 3) return 'CounterMustHaveMoreThan3Digits';
	}
	else $maskrefclient='';

	$maskwithonlyymcode=$mask;
	$maskwithonlyymcode=eregi_replace('\{(0+)([@\+][0-9]+)?([@\+][0-9]+)?\}',$maskcounter,$maskwithonlyymcode);
	$maskwithonlyymcode=eregi_replace('\{dd\}','dd',$maskwithonlyymcode);
	$maskwithonlyymcode=eregi_replace('\{(c+)(0*)\}',$maskrefclient,$maskwithonlyymcode);
	$maskwithnocode=$maskwithonlyymcode;
	$maskwithnocode=eregi_replace('\{yyyy\}','yyyy',$maskwithnocode);
	$maskwithnocode=eregi_replace('\{yy\}','yy',$maskwithnocode);
	$maskwithnocode=eregi_replace('\{y\}','y',$maskwithnocode);
	$maskwithnocode=eregi_replace('\{mm\}','mm',$maskwithnocode);
	// Now maskwithnocode = 0000ddmmyyyyccc for example
	// and maskcounter    = 0000 for example
	//print "maskwithonlyymcode=".$maskwithonlyymcode." maskwithnocode=".$maskwithnocode."\n<br>";

	// If an offset is asked
	if (! empty($reg[2]) && eregi('^\+',$reg[2])) $maskoffset=eregi_replace('^\+','',$reg[2]);
	if (! empty($reg[3]) && eregi('^\+',$reg[3])) $maskoffset=eregi_replace('^\+','',$reg[3]);

	// Define $sqlwhere
	// If a restore to zero after a month is asked we check if there is already a value for this year.
	if (! empty($reg[2]) && eregi('^@',$reg[2]))  $maskraz=eregi_replace('^@','',$reg[2]);
	if (! empty($reg[3]) && eregi('^@',$reg[3]))  $maskraz=eregi_replace('^@','',$reg[3]);
	if ($maskraz >= 0)
	{
		if ($maskraz > 12) return 'ErrorBadMaskBadRazMonth';

		// Define reg
		if ($maskraz > 1 && ! eregi('^(.*)\{(y+)\}\{(m+)\}',$maskwithonlyymcode,$reg)) return 'ErrorCantUseRazInStartedYearIfNoYearMonthInMask';
		if ($maskraz <= 1 && ! eregi('^(.*)\{(y+)\}',$maskwithonlyymcode,$reg)) return 'ErrorCantUseRazIfNoYearInMask';
		//print "x".$maskwithonlyymcode." ".$maskraz;

		// Define $yearcomp and $monthcomp (that will be use in the select where to search max number)
		$monthcomp=$maskraz;
		$yearoffset=0;
		$yearcomp=0;
		if (date("m",$date) < $maskraz) { $yearoffset=-1; }	// If current month lower that month of return to zero, year is previous year
		if (strlen($reg[2]) == 4) $yearcomp=sprintf("%04d",date("Y",$date)+$yearoffset);
		if (strlen($reg[2]) == 2) $yearcomp=sprintf("%02d",date("y",$date)+$yearoffset);
		if (strlen($reg[2]) == 1) $yearcomp=substr(date("y",$date),2,1)+$yearoffset;
			
		$sqlwhere='';
		$sqlwhere.='SUBSTRING('.$field.', '.(strlen($reg[1])+1).', '.strlen($reg[2]).') >= '.$yearcomp;
		if ($monthcomp > 1)	// Test useless if monthcomp = 1 (or 0 is same as 1)
		{
			$sqlwhere.=' AND SUBSTRING('.$field.', '.(strlen($reg[1])+strlen($reg[2])+1).', '.strlen($reg[3]).') >= '.$monthcomp;
		}
	}
	//print "masktri=".$masktri." maskcounter=".$maskcounter." maskraz=".$maskraz." maskoffset=".$maskoffset."<br>\n";

	// Define $sqlstring
	$posnumstart=strpos($maskwithnocode,$maskcounter);	// Pos of counter in final string (from 0 to ...)
	if ($posnumstart < 0) return 'ErrorBadMaskFailedToLocatePosOfSequence';
	$sqlstring='SUBSTRING('.$field.', '.($posnumstart+1).', '.strlen($maskcounter).')';
	//print "x".$sqlstring;

	// Define $maskLike
	$maskLike = dol_string_nospecial($mask);
	$maskLike = str_replace("%","_",$maskLike);
	// Replace protected special codes with matching number of _ as wild card caracter
	$maskLike = str_replace(dol_string_nospecial('{yyyy}'),'____',$maskLike);
	$maskLike = str_replace(dol_string_nospecial('{yy}'),'__',$maskLike);
	$maskLike = str_replace(dol_string_nospecial('{y}'),'_',$maskLike);
	$maskLike = str_replace(dol_string_nospecial('{mm}'),'__',$maskLike);
	$maskLike = str_replace(dol_string_nospecial('{dd}'),'__',$maskLike);
	$maskLike = str_replace(dol_string_nospecial('{'.$masktri.'}'),str_pad("",strlen($maskcounter),"_"),$maskLike);
	if ($maskrefclient) $maskLike = str_replace(dol_string_nospecial('{'.$maskrefclient.'}'),str_pad("",strlen($maskrefclient),"_"),$maskLike);

	// Get counter in database
	$counter=0;
	$sql = "SELECT MAX(".$sqlstring.") as val";
	$sql.= " FROM ".MAIN_DB_PREFIX.$table;
	//		$sql.= " WHERE ".$field." not like '(%'";
	$sql.= " WHERE ".$field." like '".$maskLike."'";
	if ($where) $sql.=$where;
	if ($sqlwhere) $sql.=' AND '.$sqlwhere;

	dolibarr_syslog("functions2::get_next_value sql=".$sql, LOG_DEBUG);
	$resql=$db->query($sql);
	if ($resql)
	{
		$obj = $db->fetch_object($resql);
		$counter = $obj->val;
	}
	else dolibarr_print_error($db);
	if (empty($counter) || eregi('[^0-9]',$counter)) $counter=$maskoffset;
	$counter++;

	if ($maskrefclient_maskcounter)
	{
		//print "maskrefclient_maskcounter=".$maskrefclient_maskcounter." maskwithnocode=".$maskwithnocode." maskrefclient=".$maskrefclient."\n<br>";
			
		// Define $sqlstring
		$maskrefclient_posnumstart=strpos($maskwithnocode,$maskrefclient_maskcounter,strpos($maskwithnocode,$maskrefclient));	// Pos of counter in final string (from 0 to ...)
		if ($maskrefclient_posnumstart <= 0) return 'ErrorBadMask';
		$maskrefclient_sqlstring='SUBSTRING('.$field.', '.($maskrefclient_posnumstart+1).', '.strlen($maskrefclient_maskcounter).')';
		//print "x".$sqlstring;

		// Define $maskrefclient_maskLike
		$maskrefclient_maskLike = dol_string_nospecial($mask);
		$maskrefclient_maskLike = str_replace("%","_",$maskrefclient_maskLike);
		// Replace protected special codes with matching number of _ as wild card caracter
		$maskrefclient_maskLike = str_replace(dol_string_nospecial('{yyyy}'),'____',$maskrefclient_maskLike);
		$maskrefclient_maskLike = str_replace(dol_string_nospecial('{yy}'),'__',$maskrefclient_maskLike);
		$maskrefclient_maskLike = str_replace(dol_string_nospecial('{y}'),'_',$maskrefclient_maskLike);
		$maskrefclient_maskLike = str_replace(dol_string_nospecial('{mm}'),'__',$maskrefclient_maskLike);
		$maskrefclient_maskLike = str_replace(dol_string_nospecial('{dd}'),'__',$maskrefclient_maskLike);
		$maskrefclient_maskLike = str_replace(dol_string_nospecial('{'.$masktri.'}'),str_pad("",strlen($maskcounter),"_"),$maskrefclient_maskLike);
		$maskrefclient_maskLike = str_replace(dol_string_nospecial('{'.$maskrefclient.'}'),$maskrefclient_clientcode.str_pad("",strlen($maskrefclient_maskcounter),"_"),$maskrefclient_maskLike);

		// Get counter in database
		$maskrefclient_counter=0;
		$maskrefclient_sql = "SELECT MAX(".$maskrefclient_sqlstring.") as val";
		$maskrefclient_sql.= " FROM ".MAIN_DB_PREFIX.$table;
		//$sql.= " WHERE ".$field." not like '(%'";
		$maskrefclient_sql.= " WHERE ".$field." like '".$maskrefclient_maskLike."'";
		if ($where) $maskrefclient_sql.=$where; //use the same optional where as general mask
		if ($sqlwhere) $maskrefclient_sql.=' AND '.$sqlwhere; //use the same sqlwhere as general mask
		$maskrefclient_sql.=' AND (SUBSTRING('.$field.', '.(strpos($maskwithnocode,$maskrefclient)+1).', '.strlen($maskrefclient_maskclientcode).")='".$maskrefclient_clientcode."')";
			
		dolibarr_syslog("functions2::get_next_value maskrefclient_sql=".$maskrefclient_sql, LOG_DEBUG);
		$maskrefclient_resql=$db->query($maskrefclient_sql);
		if ($maskrefclient_resql)
		{
			$maskrefclient_obj = $db->fetch_object($maskrefclient_resql);
			$maskrefclient_counter = $maskrefclient_obj->val;
		}
		else dolibarr_print_error($db);
		if (empty($maskrefclient_counter) || eregi('[^0-9]',$maskrefclient_counter)) $maskrefclient_counter=$maskrefclient_maskoffset;
		$maskrefclient_counter++;
	}

	// Build numFinal
	$numFinal = $mask;

	// We replace special codes except refclient
	$numFinal = str_replace('{yyyy}',date("Y",$date),$numFinal);
	$numFinal = str_replace('{yy}',date("y",$date),$numFinal);
	$numFinal = str_replace('{y}' ,substr(date("y",$date),2,1),$numFinal);
	$numFinal = str_replace('{mm}',date("m",$date),$numFinal);
	$numFinal = str_replace('{dd}',date("d",$date),$numFinal);
	if ($maskclientcode) $numFinal = str_replace(('{'.$maskclientcode.'}'),$clientcode,$numFinal);

	// Now we replace the counter
	$maskbefore='{'.$masktri.'}';
	$maskafter=str_pad($counter,strlen($maskcounter),"0",STR_PAD_LEFT);
	//print 'x'.$maskbefore.'-'.$maskafter.'y';
	$numFinal = str_replace($maskbefore,$maskafter,$numFinal);

	// Now we replace the refclient
	if ($maskrefclient)
	{
		//print "maskrefclient=".$maskrefclient." maskwithonlyymcode=".$maskwithonlyymcode." maskwithnocode=".$maskwithnocode."\n<br>";
		$maskrefclient_maskbefore='{'.$maskrefclient.'}';
		$maskrefclient_maskafter=$maskrefclient_clientcode.str_pad($maskrefclient_counter,strlen($maskrefclient_maskcounter),"0",STR_PAD_LEFT);
		$numFinal = str_replace($maskrefclient_maskbefore,$maskrefclient_maskafter,$numFinal);
	}

	dolibarr_syslog("functions2::get_next_value return ".$numFinal,LOG_DEBUG);
	return $numFinal;
}


/**
 *	\brief   Convert a binary data to string that represent hexadecimal value
 *	\param   bin		Value to convert
 *	\param   pad      	Add 0
 *	\param   upper		Convert to tupper
 *	\return  string		x
 */
function binhex($bin, $pad=false, $upper=false)
{
	$last = strlen($bin)-1;
	for($i=0; $i<=$last; $i++){ $x += $bin[$last-$i] * pow(2,$i); }
	$x = dechex($x);
	if($pad){ while(strlen($x) < intval(strlen($bin))/4){ $x = "0$x"; } }
	if($upper){ $x = strtoupper($x); }
	return $x;
}


/**
 *	\brief   Convertir de l'hexadecimal en binaire
 *	\param   string     hexa
 *	\return  string	    bin
 */
function hexbin($hexa)
{
	$bin='';
	for($i=0;$i<strlen($hexa);$i++)
	{
		$bin.=str_pad(decbin(hexdec($hexa{$i})),4,'0',STR_PAD_LEFT);
	}
	return $bin;
}


/**
 *	\brief      Return if a filename is file name of a supported image format
 *	\param      file		Filename
 *	\return		int			-1=Not image filename, 0=Image filename but format not supported by PHP, 1=Image filename with format supported
 */
function image_format_supported($file)
{
	// Case filename is not a format image
	if (! eregi('(\.gif|\.jpg|\.jpeg|\.png|\.bmp)$',$file,$reg)) return -1;

	// Case filename is a format image but not supported by this PHP
	$imgfonction='';
	if (strtolower($reg[1]) == '.gif')  $imgfonction = 'imagecreatefromgif';
	if (strtolower($reg[1]) == '.png')  $imgfonction = 'imagecreatefrompng';
	if (strtolower($reg[1]) == '.jpg')  $imgfonction = 'imagecreatefromjpeg';
	if (strtolower($reg[1]) == '.jpeg') $imgfonction = 'imagecreatefromjpeg';
	if (strtolower($reg[1]) == '.bmp')  $imgfonction = 'imagecreatefromwbmp';
	if ($imgfonction)
	{
		if (! function_exists($imgfonction))
		{
			// Fonctions de conversion non presente dans ce PHP
			return 0;
		}
	}

	// Filename is a format image and supported by this PHP
	return 1;
}


/**
 *	\brief   Retourne le numero de la semaine par rapport a une date
 *	\param   time   	Date au format 'timestamp'
 *	\return  int		Numero de semaine
 */
function numero_semaine($time)
{
	$stime = strftime('%Y-%m-%d',$time);

	if (eregi('^([0-9]+)\-([0-9]+)\-([0-9]+) ?([0-9]+)?:?([0-9]+)?',$stime,$reg))
	{
		// Date est au format 'YYYY-MM-DD' ou 'YYYY-MM-DD HH:MM:SS'
		$annee = $reg[1];
		$mois = $reg[2];
		$jour = $reg[3];
	}

	/*
	 * Norme ISO-8601:
	 * - La semaine 1 de toute ann<6E>e est celle qui contient le 4 janvier ou que la semaine 1 de toute ann<6E>e est celle qui contient le 1er jeudi de janvier.
	 * - La majorit<69> des ann<6E>es ont 52 semaines mais les ann<6E>es qui commence un jeudi et les ann<6E>es bissextiles commen<65>ant un mercredi en poss<73>de 53.
	 * - Le 1er jour de la semaine est le Lundi
	 */

	// D<>finition du Jeudi de la semaine
	if (date("w",mktime(12,0,0,$mois,$jour,$annee))==0) // Dimanche
	$jeudiSemaine = mktime(12,0,0,$mois,$jour,$annee)-3*24*60*60;
	else if (date("w",mktime(12,0,0,$mois,$jour,$annee))<4) // du Lundi au Mercredi
	$jeudiSemaine = mktime(12,0,0,$mois,$jour,$annee)+(4-date("w",mktime(12,0,0,$mois,$jour,$annee)))*24*60*60;
	else if (date("w",mktime(12,0,0,$mois,$jour,$annee))>4) // du Vendredi au Samedi
	$jeudiSemaine = mktime(12,0,0,$mois,$jour,$annee)-(date("w",mktime(12,0,0,$mois,$jour,$annee))-4)*24*60*60;
	else // Jeudi
	$jeudiSemaine = mktime(12,0,0,$mois,$jour,$annee);

	// D<>finition du premier Jeudi de l'ann<6E>e
	if (date("w",mktime(12,0,0,1,1,date("Y",$jeudiSemaine)))==0) // Dimanche
	{
		$premierJeudiAnnee = mktime(12,0,0,1,1,date("Y",$jeudiSemaine))+4*24*60*60;
	}
	else if (date("w",mktime(12,0,0,1,1,date("Y",$jeudiSemaine)))<4) // du Lundi au Mercredi
	{
		$premierJeudiAnnee = mktime(12,0,0,1,1,date("Y",$jeudiSemaine))+(4-date("w",mktime(12,0,0,1,1,date("Y",$jeudiSemaine))))*24*60*60;
	}
	else if (date("w",mktime(12,0,0,1,1,date("Y",$jeudiSemaine)))>4) // du Vendredi au Samedi
	{
		$premierJeudiAnnee = mktime(12,0,0,1,1,date("Y",$jeudiSemaine))+(7-(date("w",mktime(12,0,0,1,1,date("Y",$jeudiSemaine)))-4))*24*60*60;
	}
	else // Jeudi
	{
		$premierJeudiAnnee = mktime(12,0,0,1,1,date("Y",$jeudiSemaine));
	}

	// D<>finition du num<75>ro de semaine: nb de jours entre "premier Jeudi de l'ann<6E>e" et "Jeudi de la semaine";
	$numeroSemaine =     (
	(
	date("z",mktime(12,0,0,date("m",$jeudiSemaine),date("d",$jeudiSemaine),date("Y",$jeudiSemaine)))
	-
	date("z",mktime(12,0,0,date("m",$premierJeudiAnnee),date("d",$premierJeudiAnnee),date("Y",$premierJeudiAnnee)))
	) / 7
	) + 1;

	// Cas particulier de la semaine 53
	if ($numeroSemaine==53)
	{
		// Les ann<6E>es qui commence un Jeudi et les ann<6E>es bissextiles commen<65>ant un Mercredi en poss<73>de 53
		if (date("w",mktime(12,0,0,1,1,date("Y",$jeudiSemaine)))==4 || (date("w",mktime(12,0,0,1,1,date("Y",$jeudiSemaine)))==3 && date("z",mktime(12,0,0,12,31,date("Y",$jeudiSemaine)))==365))
		{
			$numeroSemaine = 53;
		}
		else
		{
			$numeroSemaine = 1;
		}
	}

	//echo $jour."-".$mois."-".$annee." (".date("d-m-Y",$premierJeudiAnnee)." - ".date("d-m-Y",$jeudiSemaine).") -> ".$numeroSemaine."<BR>";

	return sprintf("%02d",$numeroSemaine);
}


/**
 *	\brief   Convertit une masse d'une unite vers une autre unite
 *	\param   weight    float	Masse a convertir
 *	\param   from_unit int     Unite originale en puissance de 10
 *	\param   to_unit   int     Nouvelle unite  en puissance de 10
 *	\return  float	        Masse convertie
 */
function weight_convert($weight,&$from_unit,$to_unit)
{
	/* Pour convertire 320 gr en Kg appeler
	 *  $f = -3
	 *  weigh_convert(320, $f, 0) retournera 0.32
	 *
	 */
	while ($from_unit  <> $to_unit)
	{
		if ($from_unit > $to_unit)
		{
		  $weight = $weight * 10;
		  $from_unit = $from_unit - 1;
		  $weight = weight_convert($weight,$from_unit, $to_unit);
		}
		if ($from_unit < $to_unit)
		{
		  $weight = $weight / 10;
		  $from_unit = $from_unit + 1;
		  $weight = weight_convert($weight,$from_unit, $to_unit);
		}
	}

	return $weight;
}


/**
 *	\brief      Save personnal parameter
 *	\param	    db          Handler database
 *	\param	    user        Object user
 *	\param	    url         Si defini, on sauve parametre du tableau tab dont cle = (url avec sortfield, sortorder, begin et page)
 *							Si non defini on sauve tous parametres du tableau tab
 *	\param	    tab         Tableau (cle=>valeur) des parametres a sauvegarder
 *	\return     int         <0 si ko, >0 si ok
 */
function dol_set_user_page_param($db, &$user, $url='', $tab)
{
	// Verification parametres
	if (sizeof($tab) < 1) return -1;

	$db->begin();

	// We remove old parameters for all keys in $tab
	$sql = "DELETE FROM ".MAIN_DB_PREFIX."user_param";
	$sql.= " WHERE fk_user = ".$user->id;
	if ($url) $sql.=" AND page='".$url."'";
	else $sql.=" AND page=''";	// Page ne peut etre null
	$sql.= " AND param in (";
	$i=0;
	foreach ($tab as $key => $value)
	{
		if ($i > 0) $sql.=',';
		$sql.="'".$key."'";
		$i++;
	}
	$sql.= ")";
	dolibarr_syslog("functions2.lib::dol_set_user_page_param $sql");

	$resql=$db->query($sql);
	if (! $resql)
	{
		dolibarr_print_error($db);
		$db->rollback();
		exit;
	}

	foreach ($tab as $key => $value)
	{
		// Set new parameters
		if ($value && (! $url || in_array($key,array('sortfield','sortorder','begin','page'))))
		{
			$sql = "INSERT INTO ".MAIN_DB_PREFIX."user_param(fk_user,page,param,value)";
			$sql.= " VALUES (".$user->id.",";
			if ($url) $sql.= " '".urlencode($url)."',";
			else $sql.= " '',";
			$sql.= " '".$key."','".addslashes($value)."');";
			dolibarr_syslog("functions2.lib::dol_set_user_page_param $sql");

			$result=$db->query($sql);
			if (! $result)
			{
				dolibarr_print_error($db);
				$db->rollback();
				exit;
			}

			$user->page_param[$key] = $value;
		}
	}

	$db->commit();
	return 1;
}


/**
 *	\brief  	Returns formated reduction
 *	\param		reduction		Reduction percentage
 *	\return		string			Formated reduction
 */
function dol_print_reduction($reduction=0)
{
	global $langs;
	$langs->load("main");

	$string = '';
	if ($reduction == 100)
	{
		$string = $langs->trans("Offered");
	}
	else
	{
		$string = $reduction.'%';
	}

	return $string;
}