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<?php
/**
* $Id: simulate.php,v 1.12 2003/04/02 12:16:54 courou Exp $
*
* Author : courou@users.sourceforge.net
* Website : http://allreponse.ath.cx
*
* Support : http://sourceforge.net/projects/myphpmoney/
* CVS : http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/myphpmoney/
*/
/**
* INCLUDE FILE
*/
require_once 'config/settings.inc.php';
/**
* ENTER IN THE SESSION OR BUILD THE LOGIN FORM
*/
if (SQL_VerifSession()) {
/**
* BUILD THE HEADER
*/
XHTML_header(1,0,1,1,1,1,1,1);
/**
* DEFINE VARIABLE GLOBALS
*/
$Formule = '';
$Val = '';
/**
* THE SWITCH POST
*/
if (!isset($_POST['opt'])) $_POST['opt'] = '';
switch($_POST['opt']) {
## THE TEMPLATES -- BUILD THE DEFAULT SIMULATION PAGE
default :
$_MPM['BeginMixed'] = array
(
'SIMUL_S_TITRE' => $_VAR['SIMUL_S_TITRE'],
'SIMUL_BODY' => $_VAR['SIMUL_BODY'],
'SIMULATION' => $_VAR['SIMULATION']
);
XHTML_SetFile('header_simulation.tpl',$_MPM['BeginMixed'],2);
break;
## AFFICHE LE TABLEAU POUR FAIRE LA SIMULATION
case $_VAR['SIMULATION'] :
case $_VAR['CALCULE'] :
if ($_POST['opt'] == $_VAR['CALCULE']) {
if ($_POST['MT'] == '') $Formule = 1;
if ($_POST['taux'] == '') $Formule = 2;
if ($_POST['duree'] == '') $Formule = 3;
if ($_POST['REMB'] == '') $Formule = 4;
if ($_POST['choix_duree'] == 1) $Val = 12;
if ($_POST['choix_duree'] == 2) $Val = 1;
$_POST['MT'] = str_replace(' ', '', $_POST['MT']);
$_POST['REMB'] = str_replace(' ', '', $_POST['REMB']);
switch($Formule) {
## Recherche du Montant de l'emprunt ==> MT = REMB * (1 - (1 + i )^-n) / i
case '1' :
$i = ($_POST['taux'] / 100) / 12;
$n = $_POST['duree'] * $Val;
if ($i != 0 && $n != 0 && $_POST['REMB'] != 0) $_POST['MT'] = $tools->formatage(round($_POST['REMB'] * (1-pow((1+$i),-$n)) / $i)); else $_POST['MT'] = $_VAR['AMORTISS_REPONSE'];
break;
## Recherche du Taux d'intret
case '2' :
$n = $_POST['duree'] * $Val;
$b2 = 1; ## au lieu de prendre 25% (0.25) comme valeur maxi , je prend 100% (1.00)
if ($_POST['REMB'] != 0 && $_POST['MT'] != 0 && $n != 0) {
if ((($n * $_POST['REMB']) < $_POST['MT'])) $trier = 1;
for ($t=0; $t < 10000000; $t++) {
if ($t == 0) $b1 = 0.005; else $b1 = $c;
$a1 = ((pow((1 + ($b1 / 12)),$n)) * (((($b1 * $_POST['MT']) / 12) - $_POST['REMB']) / $_POST['REMB']) + 1);
$a2 = ((pow((1 + ($b2 / 12)),$n)) * (((($b2 * $_POST['MT']) / 12) - $_POST['REMB']) / $_POST['REMB']) + 1);
if ($a2 <= 0) $trier = 1;
if ($a1 != 0 && $a2 != 0) {
$c = (($a2 * $b1) - ($a1 * $b2)) / ($a2 - $a1);
} else {
$trier = 1;
break;
}
if ((($c - $b1) < 0.00000001) && ($t > 9)) break;
}
$i = ((100000 * $c) + 15) / 1000;
$_POST['taux'] = $i;
$cherche = explode('.',$i);
$reste = substr($cherche[1], 0, 2);
if (isset($trier) && $trier == 1) {
$_POST['taux'] = $_VAR['AMORTISS_REPONSE'];
} else {
$_POST['taux'] = "$cherche[0].$reste";
}
} else {
$_POST['taux'] = $_VAR['AMORTISS_REPONSE'];
}
break;
## Recherche de la duree ==> n = - log((REMB - (MT * i)) / REMB) / log(1+i)
case '3' :
$i = ($_POST['taux'] / 100) / 12;
if ($i != 0 && $_POST['REMB'] != 0 && $_POST['MT'] != 0) {
$_POST['duree'] = round(- log(($_POST['REMB'] - ($_POST['MT'] * $i)) / $_POST['REMB']) / log(1+$i));
if ($_POST['duree'] % 12 == 0) {
$_POST['duree'] = $_POST['duree'] / 12;
$_POST['choix_duree'] = 1;
} else {
$_POST['choix_duree'] = 2;
}
} else {
$_POST['duree'] = $_VAR['AMORTISS_REPONSE'];
}
break;
## Recherche du Montant de l'emprunt ==> REMB = MT * i / 1 - (i+1)^-n
case '4' :
$i = ($_POST['taux'] / 100) / 12;
$n = $_POST['duree'] * $Val;
if ($i != 0 && $n != 0)
$_POST['REMB'] = $tools->formatage(($_POST['MT'] * $i)/(1-pow(($i+1),-$n)));
else
$_POST['REMB'] = $_VAR['AMORTISS_REPONSE'];
break;
} ## end of switch $Formule
$_MPM['BeginMixed'] = array
(
'AMORTISSEMENT' => $_VAR['AMORTISSEMENT'],
'AMORTISSEMENT_URL' => urlencode($_VAR['AMORTISSEMENT']),
'L_LISTING' => $_MPM['file_listing'],
'MT_STR' => str_replace(' ','',$_POST['MT']),
'TAUX_STR' => str_replace(' ','',$_POST['taux']),
'DUREE_STR' => str_replace(' ','',$_POST['duree']),
'REMB_STR' => str_replace(' ','',$_POST['REMB']),
'CHOIX_DUREE' => $_POST['choix_duree']
);
$w = XHTML_SetFile('opt_simulation_1.tpl',$_MPM['BeginMixed'],1);
} ## end of $_POST['opt'] == $_VAR['CALCULE']
$_MPM['BeginMixed'] = array
(
'IMG_TXT_EUROS' => (__DISPLAY_EURO__ == 2) ? $_MPM['lang_money_country'] : $_VAR['IMG_TXT_EUROS'],
'IMG_ALT_EUROS' => (__DISPLAY_EURO__ == 2) ? $_MPM['lang_money_country'] : $_VAR['IMG_ALT_EUROS'],
'SIMUL_ENTER_TITLE' => sprintf($_VAR['SIMUL_ENTER_TITLE'],$_MPM['name']),
'SIMUL_ENTER_FORM_1' => $_VAR['SIMUL_ENTER_FORM_1'],
'SIMUL_ENTER_FORM_2' => $_VAR['SIMUL_ENTER_FORM_2'],
'SIMUL_ENTER_FORM_3' => $_VAR['SIMUL_ENTER_FORM_3'],
'SIMUL_ENTER_FORM_4' => $_VAR['SIMUL_ENTER_FORM_4'],
'SIMUL_ENTER_FORM_5' => $_VAR['SIMUL_ENTER_FORM_5'],
'SIMUL_ENTER_FORM_6' => $_VAR['SIMUL_ENTER_FORM_6'],
'CALCULE' => $_VAR['CALCULE'],
'MT_SIMUL' => isset($_POST['MT']) ? $_POST['MT'] : '',
'TAUX_SIMUL' => isset($_POST['taux']) ? $_POST['taux'] : '',
'DUREE_SIMUL' => isset($_POST['duree']) ? $_POST['duree'] : '',
'REMB_SIMUL' => isset($_POST['REMB']) ? $_POST['REMB'] : '',
'SELECTED_1' => isset($_POST['choix_duree']) && $_POST['choix_duree'] == 1 ? ' selected="selected"' : '',
'SELECTED_2' => isset($_POST['choix_duree']) && $_POST['choix_duree'] == 2 ? ' selected="selected"' : '',
'OPTION_SIMULATION' => $_POST['opt'] == $_VAR['CALCULE'] ? $w : ''
);
XHTML_SetFile('form_simulation_2.tpl',$_MPM['BeginMixed'],2);
break;
} ## end of switch $_POST['opt']
} else {
XHTML_DisplayLogin();
} ## end if (SQL_VerifSession())
/**
* BUILD THE FOOTER
*/
XHTML_footer();
|
