<?php
/******************************************************************************/
/*                                                                            */
/*                       __        ____                                       */
/*                 ___  / /  ___  / __/__  __ _____________ ___               */
/*                / _ \/ _ \/ _ \_\ \/ _ \/ // / __/ __/ -_|_-<               */
/*               / .__/_//_/ .__/___/\___/\_,_/_/  \__/\__/___/               */
/*              /_/       /_/                                                 */
/*                                                                            */
/*                                                                            */
/******************************************************************************/
/*                                                                            */
/* Titre          : Supprime les lignes vident d'une chaine                   */
/*                                                                            */
/* URL            : http://www.phpsources.org/scripts310-PHP.htm              */
/* Auteur         : Phpsources                                                */
/* Date édition   : 30 Nov 2007                                               */
/* Website auteur : http://www.phpsources.org                                 */
/*                                                                            */
/******************************************************************************/


function retirelignesvident($string)
{
   return preg_replace("/(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+/", "\n", $string);
}


$nouveau_texte = retirelignesvident($votre_texte);
echo $nouveau_texte;

?>