diff --git a/evoadmin/htdocs/alias.php b/evoadmin/htdocs/alias.php
index 47b3e9d..13f6bbe 100755
--- a/evoadmin/htdocs/alias.php
+++ b/evoadmin/htdocs/alias.php
@@ -177,7 +177,7 @@ if (isset($_SESSION['login']))
 
                 if (!$conf['domaines']['onlyone']) {
                     $info[0]['mailacceptinggeneralid'][$i] =
-                        preg_replace('@'.$_SESSION['domain'],'',$info[0]['mailacceptinggeneralid'][$i]);
+                        preg_replace("/".@$_SESSION['domain']."/",'',$info[0]['mailacceptinggeneralid'][$i]);
                 }
 
                 print "<tr><td align='right'>Mail accept&eacute; en entr&eacute;e :</td>
diff --git a/evoadmin/htdocs/compte.php b/evoadmin/htdocs/compte.php
index 903686f..a2b8b0d 100755
--- a/evoadmin/htdocs/compte.php
+++ b/evoadmin/htdocs/compte.php
@@ -426,7 +426,7 @@ if (isset($_SESSION['login']))
 
                     if (!$conf['domaines']['onlyone']) {
                         $info[0]['mailacceptinggeneralid'][$i] =
-                            preg_replace('@'.$_SESSION['domain'],'',$info[0]['mailacceptinggeneralid'][$i]);
+                            preg_replace("/@".$_SESSION['domain']."/",'',$info[0]['mailacceptinggeneralid'][$i]);
                     }
 
                     print "<tr><td align='right'>Mail accept&eacute; en entr&eacute;e :</td>
diff --git a/evoadmin/htdocs/evolibs/Html.php b/evoadmin/htdocs/evolibs/Html.php
index ce508ac..956090a 100755
--- a/evoadmin/htdocs/evolibs/Html.php
+++ b/evoadmin/htdocs/evolibs/Html.php
@@ -45,7 +45,7 @@ class Html
 	function clean2($texte)
 	{
 		$texte = htmlentities(strip_tags($texte),ENT_NOQUOTES);
-		$texte = preg_replace('\[([^"^=]+)=(http://[^"^[:space:]]+)\]',
+		$texte = preg_replace('/\[([^"^=]+)=(http:\/\/[^"^[:space:]]+)\]/',
 
 				'<a href="\\2">\\1</a>',$texte);
 		return addslashes($texte);
@@ -82,7 +82,7 @@ class Html
 
 		while(list($car,$val) = each($couple))
 		{
-			$texte = preg_replace($car,$val,$texte);
+			$texte = preg_replace("/".$car."/",$val,$texte);
 		}
 
 		return $texte;
diff --git a/evoadmin/htdocs/evolibs/Math.php b/evoadmin/htdocs/evolibs/Math.php
index 7aec6f4..18e4f53 100755
--- a/evoadmin/htdocs/evolibs/Math.php
+++ b/evoadmin/htdocs/evolibs/Math.php
@@ -16,7 +16,7 @@ class Math
 		// Pour eviter -0.00
 		if ( number_format($param, 2, '.', ' ') == -0.00 ) $param = 0.00;
 
-		return preg_replace('x','&nbsp;',number_format($param, 2, '.', 'x'));
+		return preg_replace('/x/','&nbsp;',number_format($param, 2, '.', 'x'));
 	}
 
 	function LongCode($param)
diff --git a/evoadmin/htdocs/superadmin.php b/evoadmin/htdocs/superadmin.php
index 09408dd..548a434 100755
--- a/evoadmin/htdocs/superadmin.php
+++ b/evoadmin/htdocs/superadmin.php
@@ -139,12 +139,10 @@ if (isset($_SESSION['login'])) {
         // we select domain in your DN
         // thanks to http://www.physiol.ox.ac.uk/~trp/regexp.html
         if ($conf['evoadmin']['version'] <= 2) {
-            $mydomain = preg_replace("/uid=" .$login. ",domain=((?:(?:[0-9a-zA-Z_\-]+)\.){1,}(?:[0-9a-zA-Z_\-]+)),"
-                . LDAP_BASE ."/","$1",$_SESSION['dn']);
+            $mydomain = preg_replace("/\/uid=".$login.",domain=((?:(?:[0-9a-zA-Z_\-]+)\.){1,}(?:[0-9a-zA-Z_\-]+)),".LDAP_BASE."\//","$1",$_SESSION['dn']);
         }
         else {
-            $mydomain = preg_replace("/uid=" .$login. ",cn=((?:(?:[0-9a-zA-Z_\-]+)\.){1,}(?:[0-9a-zA-Z_\-]+)),"
-                . LDAP_BASE ."/","$1",$_SESSION['dn']);
+            $mydomain = preg_replace("/\/uid=".$login.",cn=((?:(?:[0-9a-zA-Z_\-]+)\.){1,}(?:[0-9a-zA-Z_\-]+)),".LDAP_BASE."\//","$1",$_SESSION['dn']);
         }
 
         array_push($domaines,$mydomain);