about sessions

[pang]

Dear all,

i just want to use sessions for a script authentification, this is the first time i deal with this, i start executing this code but i get nothing:

session_start();
$prenom="jean-pierre";
session_register('prenom');

if (session_register('prenom')){
echo "Variable \$prenom saved !";
} else{
     echo "Error: the variable \$prenom not saved!"
	 }

in my php.ini i've register_globals = On
could anybody give me a help? thanks in advance

[RossC0]

First things first - turn off register-globals in your ini.

It is lazy method for coding and can have serious security implications! So its best avoided.

Regarding your sessions setting method - have a look at the php manual.

session_register is now depreciated - what version of php you running ?

// Use of session_register() is deprecated
$barney = "A big purple dinosaur.";
session_register("barney");

// Use of $SESSION is preferred, as of PHP 4.1.0
$SESSION["zim"] = "An invader from another planet.";

So give the $_SESSION method a go..

[pang]

thanks for reply,
i'm using php 4.3.10 , i made a look at php manual my sittings methods are all right, i steal get nothing.

[RossC0]

Interesting...

Does this work ?

<?php
session_start();
$prenom="jean-pierre";
$_SESSION['prenom'] = $prenom;

if (isset($_SESSION['prenom'] ){
echo "Variable $_SESSION['prenom']saved !";
} else{
     echo "Error: the variable $_SESSION['prenom'] not saved!"
  }
?>
============================
= DEBUG - DUMP SESSION VARS =
============================
<?php
print_r($_SESSION);
?>

[pang]

i'm sorry, i execute your code,but i steel get nothing , what's wrong?

[RossC0]

Hmmm - do you get absoultely nothing outputted to screen?

[pang]

yes, i tried to execute line by line all is right ,but the problem is in the if clause, i get nothing

[RossC0]

Sorry theres a typo - missing a bracket - check your error handling in your php.ini

As its not ouputing the error message (parse i think it will be) - but that never helps debugging - if it hides the bugs!

<?php
session_start();
$prenom="jean-pierre";
$_SESSION['prenom'] = $prenom;

if (isset($_SESSION['prenom']) ){
echo "Variable $_SESSION['prenom']saved !";
} else{
     echo "Error: the variable $_SESSION['prenom'] not saved!"
  }
?>
============================
= DEBUG - DUMP SESSION VARS =
============================
<?php
print_r($_SESSION);
?> 

[pang]

sorry i did not understund i 'm lost

[RossC0]

OK

Try the new code pasted above - There was an error in the first piece of code.

Which leds me to my second point, if the first example produced no output at all - your error reporting settings in php.ini need to be changed to ALL.

This means you output error messages to screen - vital if you want to debug code.

[pang]

Yes i see the missing bracket, i reexecute the code and i went to php.ini the line error_reporting = E_ALL is already uncommented so i steel get nothing , plze wath's wrong !!!

[RossC0]

OK - just debugged the code (so now it works - always helps!) - You dont have full error reporting on - it gave a few parse errors - which should have been outputted to screen - check your phpinfo() - to see why they arent and the php manual.

Anyway here is the corrected code:

<?php
session_start();
$prenom="jean-pierre";
$_SESSION['prenom'] = $prenom;

if (isset($_SESSION['prenom'] )){
	echo "Variable".$_SESSION['prenom']."saved !";
} else{
     echo "Error: the variable".$_SESSION['prenom']."not saved!";
  }
?>
============================
= DEBUG - DUMP SESSION VARS =
============================
<?php
print_r($_SESSION);
?>

[pang]

Thanks a lot the code you wrote work, you saved me, so it's just question of concatenation!!!!

[RossC0]

Yeah I forgot that it does that for Session / Post & Get variables.

An oddity of php - you need to set them to local variables or concatenate them into the echo statement ?! Why ?? because... 😃

You still need to ensure you output parse errors to screen or you dev time will take an age!