task #6689, strlen problem

htdocs/lib/ldap.class.php

htdocs/lib/memory.lib.php

htdocs/lib/security.lib.php

htdocs/lib/viewfiles.lib.php

htdocs/lib/xcal.lib.php

htdocs/product/canvas/default/product.default.class.php

htdocs/product/canvas/service/product.service.class.php

htdocs/product/class/product.class.php

htdocs/product/liste.php

htdocs/product/reassort.php

htdocs/projet/class/project.class.php

htdocs/public/demo/index.php

htdocs/societe/class/societe.class.php

htdocs/societe/lien.php

htdocs/societe/soc.php

htdocs/societe/societe.php

htdocs/user/class/user.class.php

htdocs/user/class/usergroup.class.php

htdocs/user/group/perms.php

htdocs/user/perms.php