Inserer un code postal dans un script php

salut a tous
voila mon probleme
dans mon site d'annonce (http://www.bretagneannonce.fr/ ) , en accedant aux offre , j'aimerai que le lecteur puisse voir apparaitre
dans la liste d'annonce le code postal ou la ville (comme le bon coin par exemple http://www.leboncoin.fr/annonces/offres/bretagne/ )
j'avoue je suis un peu perdu et je ne veux pas faire de C......e
quelqu'un a t'il une idee sur le sujet ?

ci joint une partie du code

////////////////////////////////////////////////////// 
//Afficher les annonces trouvées / 
////////////////////////////////////////////////////// 

function display_search_annonces($array, $affich, $f) 
{ 

?> 

<!--espace--> 
<table width="950" align="center" cellpadding="0" cellspacing="0"> 
<tr> 
<td width="740" valign="top"> 

<table> 
<tr> 
<td height="5"> 
</td> 
</tr> 
</table> 

<?php 

foreach ( $array as $row ) 
{ 

$id = htmlentities($row['id_ann'], ENT_QUOTES); 
$id_dep = htmlentities($row['id_dep'], ENT_QUOTES); 

$titre = htmlentities($row['titre'], ENT_QUOTES); 
$titre = stripslashes($titre); 
if( strlen( $titre) > 42 ) 
{ 

$titre = substr($titre, 0, 42); 
$pos = strrpos($titre, " "); 

if( $pos ) 
{ 
$titre = substr($titre, 0, $pos); 
} 

$titre .= "..."; 
} 

$date = htmlentities($row['date'], ENT_QUOTES); 

$prix = htmlentities($row['prix'], ENT_QUOTES); 
$prix = number_format($prix, 0,',',' '); 

$dep_name = get_dep_name($id_dep); 
$dep_name = stripslashes($dep_name); 
$dep_name = htmlentities($dep_name, ENT_QUOTES); 

$cat_id = $row['id_cat']; 
$cat_name = get_cat_name($cat_id); 

$cat_name = htmlentities($cat_name, ENT_QUOTES); 
$cat_name = stripslashes($cat_name); 

$images = get_images($id); 

if( (count($images) != 0) && ($affich == 2) ) 
{ 
$image_name = "images_mini/".$images[0]; 
} 
elseif( (count($images) != 0) && ($affich == 1) ) 
{ 

$image_name = "images/photo-y.jpg"; 
} 
else 
{ 
if( $affich == 2) 
{ 
$image_name = ""; 
} 
else 
{ 
$image_name = "images/photo-n.gif"; 
} 
} 

$image_name = htmlentities($image_name, ENT_QUOTES); 
//calcul de la date 
$now = time(); 
$date_now = date('d', $now); 
$moi_now = date('m', $now); 

$date_ann = date('d', $date); 
$moi_ann = date('m', $date); 

if ( ($date_now == $date_ann) && ($moi_now - $moi_ann == 0 ) ) 
{ 

$hour = date('G', $date); 
$min = date('i', $date); 
$hour .= 'h'.$min; 
$day = "Aujourd'hui "; 
} 
elseif( ($date_now - $date_ann == 1) && ($moi_now - $moi_ann == 0 ) ) 
{ 

$hour = date('G', $date); 
$min = date('i', $date); 
$hour .= 'h'.$min; 
$day = "Hier "; 
} 
else 
{ 

$month = date('d/m', $date); 
$hour = date('G', $date); 
$min = date('i', $date); 
$hour .= 'h'.$min; 
$day = ''; 
} 

$hour = htmlentities($hour, ENT_QUOTES); 
$day = htmlentities($day, ENT_QUOTES); 
?> 

<!--annonce--> 
<?php if( $affich == 2 ) { ?> 
<table width="740" align="center" cellpadding="0" cellspacing="0"> 
<tr> 
<td width="55" height="60"> 
<?php 
//affich = 2 
if( !empty($day) ) 
{ 
echo $day."<br>"."à ".$hour; 
} 
else 
{ 
echo "Le ".$month."<br>"." à ".$hour;; 
} 
?> 
</td> 
<td width="120" height="25" align="center" valign="bottom"> 
<?php 
if ( !empty($image_name) ) 
{ 
echo "<a href=\"annonce-$id.htm\"> 

<img src=\"$image_name\" border=\"0\"></a>"; 
} 
else 
{ 
echo "<a href=\"annonce-$id.htm\"> 

<img src=\"images/no-photo.gif\" border=\"0\"></a>"; 
} 
?> 
</td> 
<td width="280" height="25" valign="top"> 
<div style="padding-left: 8px;"> 
<?php 

if( $f == 1 || $f == 2 ) 
{ 
echo " 

<a href=\"annonce-$id-$f.htm\" 

class=\"lien2\">$titre</a>"; 
} 
else 
{ 

echo " 

<a href=\"annonce-$id.htm\" class=\"lien2\">$titre</a>"; 
} 

?> 
<br><br> 
<?php 
if( $prix != 0 ) 
{ 
echo $prix." €"; 
} 

?> 
</div> 
</td> 
<td width="60" height="50" align="right"> 
<div style="padding-left: 0px;"> 
</div> 
</td> 
<td width="100" height="50" valign="top"> 
<div style="padding-left: 15px;"> 
<?php echo $dep_name; ?> 
</div> 
</td> 
<td width="140" height="50" valign="top"> 
<div style="padding-left: 15px;"> 
<?php echo $cat_name;?> 
</div> 
</td> 
</tr> 
</table> 

<table width="740" align="center" cellpadding="0" cellspacing="0"> 
<tr> 
<td height="20"> 
<img src="images/espace.gif"> 
</td> 
</tr> 
</table> 

<?php } ?> 

<!-- sans photos--> 
<? if( $affich == 1) { ?> 

<!--annonce--> 
<table width="740" align="center" cellpadding="0" cellspacing="0"> 
<tr> 
<td width="105" height="25"> 
<?php 
//afffich = 1 
if( !empty($day) ) 
{ 
echo $day."à ".$hour; 
} 
else 
{ 
echo "Le ".$month." à ".$hour; 
} 

?> 
</td> 
<td width="30" height="25" align="center"> 
<?php echo "<img src=\"$image_name\">"; ?> 
</td> 
<td width="280" height="25"> 
<div style="padding-left: 8px;"> 
<?php 

if( $f == 1 || $f == 2 ) 
{ 
echo " 

<a href=\"annonce-$id-$f.htm\" 

class=\"lien2\">$titre</a>"; 
} 
else 
{ 

echo " 

<a href=\"annonce-$id.htm\" class=\"lien2\">$titre</a>"; 
} 
?> 
</div> 
</td> 
<td width="80" height="25" align="right"> 
<div style="padding-left: 0px;"> 
<?php 
if( $prix != 0 ) 
{ 
echo $prix." €"; 
} 

?> 
</div> 
</td> 
<td width="105" height="25"> 
<div style="padding-left: 15px;"> 
<?php echo $dep_name; ?> 
</div> 
</td> 
<td width="140" height="25"> 
<div style="padding-left: 15px;"> 
<?php echo $cat_name;?> 
</div> 
</td> 
</tr> 
</table> 
<!--sans photos--> 
<?php } ?> 

<?php 
} 
} 


////////////////////////////////////////////////// 
//Afficher le nombre d'annonces trouvées , nombre/ 
//de particuliers et proffesionels / 
////////////////////////////////////////////////// 

function display_search_infos($array, $f, $limit, $page) 
{ 

$total = htmlentities($array['total'], ENT_QUOTES); 
$par = htmlentities($array['par'], ENT_QUOTES); 
$pro = htmlentities($array['pro'], ENT_QUOTES); 
$global = htmlentities($array['global'], ENT_QUOTES); 
$limit = htmlentities($limit, ENT_QUOTES); 

if( !empty($_SESSION['old_reg']) ) 
{ 
$reg = $_SESSION['old_reg']; 
} 
else 
{ 
$reg = 0; 
} 

if( !empty($_SESSION['old_cat']) ) 
{ 
$cat = $_SESSION['old_cat']; 
} 
else 
{ 
$cat = 0; 
} 

$reg_name = get_reg_name($reg); 
$reg_name = htmlentities($reg_name, ENT_QUOTES); 
$reg_name = stripslashes($reg_name); 

$cat_name = get_cat_name($cat); 
$cat_name = htmlentities($cat_name, ENT_QUOTES); 
$cat_name = stripslashes($cat_name); 

?> 
<!--espace--> 
<table width="950" align="center" cellpadding="0" cellspacing="0"> 
<tr> 
<td width="950" height="7"> 
</td> 
</tr> 
</table> 

<!--bar d'infos--> 
<table width="950" align="center" style="BACKGROUND-IMAGE: url(images/espacehaut.gif)" cellpadding="0" cellspacing="0"> 
<tr> 
<td width="650" height="24" valign="top"> 
<div style="padding-left: 2px; padding-top: 5px"> 
<?php if( $f == 1 || $f == 2 ){ ?> 
<a href="recherche.php?l=1" class="lien2"> 
Toutes les annonces :</a> 
<?php }else{ ?> 
<a href="recherche.php?l=1" class="lien3"> 
Toutes les annonces :</a> 
<?php } ?> 

<?php 

$deb = ($page*$limit)-$limit + 1; 
$fin = $limit*$page; 

if ( $f != 1 && $f != 2 ) 
{ 
echo " 

&nbsp;&nbsp;$deb à $fin sur $total &nbsp;&nbsp;&nbsp;&nbsp;"; 

} 
else 
{ 

echo " 

&nbsp;&nbsp; $total &nbsp;&nbsp;&nbsp;&nbsp;"; 

} 

?> 
<?php if( $f == 1 ){ ?> 
<a href="recherche.php?l=1&f=1" class="lien3"> 
Particulier :</a>&nbsp;&nbsp; 
<?php }else{ ?> 
<a href="recherche.php?l=1&f=1" class="lien2"> 
Particulier :</a>&nbsp;&nbsp; 
<?php } ?> 
<?php 
if( $f == 1 ) 
{ 

echo "&nbsp;&nbsp;$deb à $fin sur ".$par; 
} 
else 
{ 

echo $par; 
} 
?> &nbsp;&nbsp;&nbsp;&nbsp; 
<?php if( $f == 2 ){ ?> 
<a href="recherche.php?l=1&&f=2" class="lien3"> 
Professionnel :</a>&nbsp;&nbsp; 
<?php }else{ ?> 
<a href="recherche.php?l=1&f=2" class="lien2"> 
Professionnel :</a>&nbsp;&nbsp; 
<?php } ?> 
<?php 
if( $f == 2 ) 
{ 

echo "&nbsp;&nbsp;$deb à $fin sur ".$pro; 
} 
else 
{ 

echo $pro; 
} 

?> 
</div> 
</td> 
<td width="300" height="24" align="right" valign="top"> 
<div style="padding-right: 2px; padding-top: 5px"> 
<?php echo $global; ?> annonces sur tout le site 
</div> 
</td> 
</tr> 
</table> 

<table width="950" align="center" cellpadding="0" cellspacing="0"> 
<tr> 
<td width="650" valign="top"> 
<div style="padding-left: 1px; padding-top: 13px; padding-bottom: 5px;"> 
<strong>Vous êtes ici :</strong> &nbsp; 
<?php 

if( !empty($reg_name) ) 
{ 
echo "<a href=\"annonces.php?region=$reg\" class=\"lien2\"> 

$reg_name</a> - "; 

} 
else 
{ 
echo "Toutes régions - "; 
} 

if( !empty($cat_name) ) 
{ 
echo "$cat_name"; 
} 
else 
{ 

echo "Toutes catégories"; 
} 

?> 
</div> 
</td> 
</tr> 
<table> 


<!--barre d'infos--> 




<?php 
} 

function display_big_image_une($name, $array, $id, $id_image) 
{ 
$name = htmlentities($name, ENT_QUOTES); 
$path = "images_ann/$name"; 
$size = @getimagesize($path); 
$width = $size[0]; 
$height = $size[1]; 

?> 

<table width="485" align="center" cellpadding="0" cellspacing="0"> 
<tr> 
<td width="485" height="373" align="center" valign="middle"> 
<div style="padding-top: 5px;"> 
<?php 
$max_width = 480; 
$max_height = 360; 

// si l'image est trop large ou trop haute 
if( $width < 200 && $height < 100 ) 
{ 
$max_width = $width * 2; 
$max_height = $height * 2; 
} 
else 
{ 
if($max_width && ($width > $height)) 
{ 
// image plus large que haute 
$max_height = ( ($height * $max_width)/ $width ); 
$max_width = $max_width; 

} 
elseif($max_height && ($height > $width)) 
{ 
// image plus haute que large 
$max_height = $max_height; 
$max_width = ( ($width *$max_height) / $height ); 

} 
else 
{ 
$max_width = ( ($width *$max_height) / $height ); 
$max_height = ( ($height * $max_width)/ $width ); 
} 

} 

if( $max_width > 480 ) 
{ 
$max_width = 480; 
} 

if( $max_height > 360 ) 
{ 
$max_height = 360; 
} 


?> 
<img src="<?php echo "images_ann/$name"; ?>" height="<?php echo $max_height; ?>" width="<?php echo $max_width; ?>" border="0"> 
</div> 
</td> 
</tr> 
</table>