Problem after session_start()

yvo

Hello,

When i print the value of the variable before the session_start(), it's good. (the good number)
After the session_start() the echo give me 0.

I can not understand the problem.

Thank you for your help.

Yvo 😕

PHP problem.

50
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at c:\inetpub\wwwroot\pgm\pdf1.php:121) in c:\inetpub\wwwroot\pgm\pdf1.php on line 124

array("Nomm","Prenom","age","ddn")
**array(0,0,0,0)

The code:

echo " $lgPrenom";
//session_cache_limiter('private');

session_start();
include "common_db.inc";
echo " $lgPrenom";
$w_nom = "array(" ;
$w_valeur = "array(" ;

$pdf=new PDF($orientation,'mm',$A);
$pdf->Open();

$req = $GLOBALS["session_req"];

mysql_connect('localhost','','');
mysql_select_db('yvotest');
$toto = mysql_query($req);
$nb_champ= mysql_num_fields($toto) ;

$a=1;
while( $a < $nb_champ)
{
$nom_champ = mysql_field_name($toto , $a);
$vari= "lg".$nom_champ;

if(isset($$nom_champ))
{
if($a!=1)
{
$w_nom .= ",";
$w_valeur .= ",";
}

$w_nom .= "\"".$nom_champ."\"";
$w_valeur .= $$vari;

}

$a++;
}

$w_nom .= ")";
$w_valeur .= ")";
echo " $w_nom";
echo " **$w_valeur";

jpmoriarty

i think your session_start() is supposed to be the first thing that is sent to the browser - ie it must be called before any echo's or any plain html is sent. that might be why you're having problems.

Z3RatuL

yeap jpmoriarty is right just put session_start(); before doing anything else in your script.

For example

<?php
session_start();
//session_cache_limiter('private');
include "common_db.inc";
echo " $lgPrenom";
$w_nom = "array(" ;
$w_valeur = "array(" ;

$pdf=new PDF($orientation,'mm',$A);
$pdf->Open();

$req = $GLOBALS["session_req"];

mysql_connect('localhost','','');
mysql_select_db('yvotest');
$toto = mysql_query($req);
$nb_champ= mysql_num_fields($toto) ;

$a=1;
while( $a < $nb_champ)
{
$nom_champ = mysql_field_name($toto , $a);
$vari= "lg".$nom_champ;

if(isset($$nom_champ))
{
if($a!=1)
{
$w_nom .= ",";
$w_valeur .= ",";
}

$w_nom .= "\"".$nom_champ."\"";
$w_valeur .= $$vari;
}

$a++;
}

$w_nom .= ")";
$w_valeur .= ")";
echo " $w_nom";
echo " **$w_valeur";

yvo

Thank you.

I have found the solution for the probleem.
It's not the session_start. But now i pay attention.

The variable $lgPrenom is a simple test.
In the program i use $var = "lg".$a; $a kom from a database and it is letters . and for the value of var ==> $$var
The solution is $var = "lg".$a but $a one number . and $$var for the value.

Yvo😉