Str_Replace() – PHP – Fórum – Programujte.com

Potrebujem poradit.. mam script, v ktorom nefunguje
$_POST["prispevok"] = Str_Replace("n","",$_POST["prispevok"]);
a vobec nechapem preco... iny str_replace pri nahradzovani napr. :) smajlikom fici v pohode.. funkciu nl2br() pouzivat nechcem pretoze vypis z db je potom zle zarovnany.. script vyzera takto:
?

define('BASE_URL', "http://localhost/Pacienti/");

function escape($str) {

  if(get_magic_quotes_gpc())

    $str = stripslashes($str);

  if(function_exists("mysql_real_escape_string"))

    $str = mysql_real_escape_string($str, $GLOBALS["spojeni"]);

  else

    $str = addslashes($str);

  return $str;

}



if(isset($_POST["odeslano"])) {

  //oriznuti o zbytecne netisknutelne znaky

  $_POST = array_map("trim", $_POST);

  //proti SQL injesction

  $_POST = array_map("escape", $_POST);

  //Prevest html tagy na entity

  $_POST = array_map("htmlspecialchars", $_POST);

  //prevedenie /n na <br>

  if(!empty($_POST["prispevok"])) {

  $user_id=mysql_query("Select id from admin where Login='$db_administration_login'");

  $u_id=mysql_fetch_array($user_id);

  $uid=$u_id["id"];

  $datum=date("d.m.Y");

  $cas=date("H:i:s");

  $najst=array

	(

	":)",

	":lol:",

 	":D",

  	":Q",

   	";)",

    	":P",

     	":fuck:",

      	":B",

       	":hmm:",

	":O",

	"8)",

 	":(",

  	":grr:",

   	"8I",

    	":heh:",

     	":x",

      	":wohoow:",

       	":coo:",

	":goood:",

        ":baad:",

 	":pc:",

  	":pivo:",

	":ahaa:",

	":E",

        ":buee:",

	":ziiiv:",

        ":hek:",

        ":love:",

        ":ups:",

        ":zuby:",

        ":zzz:",

        ":sibe:",

        ":ucim:",

	);



   $nahradit=array

	(

	"<img src="Data/Images/Smilies/1.gif" alt=":)">",

        "<img src="Data/Images/Smilies/2.gif" alt=":lol:">",

        "<img src="Data/Images/Smilies/3.gif" alt=":D">",

        "<img src="Data/Images/Smilies/4.gif" alt=":Q">",

        "<img src="Data/Images/Smilies/5.gif" alt=";)">",

        "<img src="Data/Images/Smilies/6.gif" alt=":P">",

        "<img src="Data/Images/Smilies/7.gif" alt=":fuck:">",

        "<img src="Data/Images/Smilies/8.gif" alt=":B">",

        "<img src="Data/Images/Smilies/9.gif" alt=":hmm:">",

        "<img src="Data/Images/Smilies/10.gif" alt=":0">",

        "<img src="Data/Images/Smilies/11.gif" alt="8)">",

        "<img src="Data/Images/Smilies/12.gif" alt=":(">",

        "<img src="Data/Images/Smilies/13.gif" alt=":grr:">",

        "<img src="Data/Images/Smilies/15.gif" alt="8I">",

        "<img src="Data/Images/Smilies/16.gif" alt=":heh:">",

        "<img src="Data/Images/Smilies/17.gif" alt=":x">",

        "<img src="Data/Images/Smilies/18.gif" alt=":wohoow:">",

        "<img src="Data/Images/Smilies/19.gif" alt=":coo:">",

        "<img src="Data/Images/Smilies/20.gif" alt=":goood:">",

        "<img src="Data/Images/Smilies/21.gif" alt=":baad:">",

        "<img src="Data/Images/Smilies/22.gif" alt=":pc:">",

        "<img src="Data/Images/Smilies/23.gif" alt=":pivo:">",

        "<img src="Data/Images/Smilies/24.gif" alt=":ahaa:">",

        "<img src="Data/Images/Smilies/25.gif" alt=":E">",

        "<img src="Data/Images/Smilies/27.gif" alt=":buee:">",

        "<img src="Data/Images/Smilies/28.gif" alt=":ziiiv:">",

        "<img src="Data/Images/Smilies/29.gif" alt=":hek:">",

        "<img src="Data/Images/Smilies/32.gif" alt=":love:">",

        "<img src="Data/Images/Smilies/33.gif" alt=":ups:">",

        "<img src="Data/Images/Smilies/34.gif" alt=":zuby:">",

        "<img src="Data/Images/Smilies/35.gif" alt=":zzz:">",

        "<img src="Data/Images/Smilies/36.gif" alt=":sibe:">",

        "<img src="Data/Images/Smilies/37.gif" alt=":ucim:">",

	);





   echo '<table align="center"><tr><td align="center" class="bold_w">Pr?spevok bol ?spe?ne pridan?.</td></tr></table>';

    $_POST["prispevok"] = preg_replace(array("/((http|ftp|buhvi_co_jeste)://.*)/imU", "/(.*)/imU", "/[email](.*)[/email]/imU", "/[i](.*)[/i]/imU", "/[B](.*)[/B]/imU"),

                                     array("<a class="hypforum_o" target="_blank" href="".BASE_URL."/redir.php?url=1">1</a>", "<a class="hypforum_o" target="_blank" href="".BASE_URL."/redir.php?url=http://1">http://1</a>", "<a class="hypforum_o" href="mailto:1">1</a>", "<em>1</em>", "<strong style="font-size:12px;">1</strong>"),

                                     $_POST["prispevok"]);



   $_POST["prispevok"] = Str_Replace($najst, $nahradit, $_POST["prispevok"]);

   $_POST["prispevok"] = Str_Replace("n","",$_POST["prispevok"]);//nefunguje



   MySQL_Query("INSERT INTO prispevok_forum VALUES('','$id_tema','$uid','$_POST[prispevok]','$datum','$cas',now())");

   echo MySQL_error();

  }

  else {

    echo '<table align="center"><tr><td align="center" class="bold_w">Nie je mo?n? prida? pr?zdny pr?spevok!</td></tr></table>';

  }

}

Musis osetrit i replacovani znaku "\r" :P

nechapem to... nefunguje mi ani $_POST["prispevok"] = Str_Replace("\r","",$_POST["prispevok"]); v inych scriptoch mi funguje normalne $_POST["prispevok"] = Str_Replace("\n","",$_POST["prispevok"]); ale zrovna v tomto nie... fakt tomu nerozumiem...

Zkus
str_replace(array("\\r\\n", "\\n", "\\r"), '', $_POST['prispevok']);

wow dikes...to uz funguje.. ale stale nechapem preco nechcel ist ten druhy str_replace... v inych scriptoch ho pouzivam bez problemov...

Myslm, že za to může fce escape, která přidá lomítka všude tam, kde je to potřeba.

Btw.: Používáš fci escape i někde jinde?

nie myslim ze nie...