[Resolved] convert $_POST array into a $_SESSION array, help needed

helz

im getting information from multiple pages, to keep all the information i want it to be stored into a session array so its accessible from all the pages.
heres what i have so far, but am stuck on how to do it:

foreach($_POST as $key => $value) {
   $_SESSION['page1'] = array('$key' => '$value',);
}

im pretty sure that $_SESSION['page1'] needs to be declared before the foreach loop, but still unsure how to do it...

thanks in advance

=edit=
i cheated and just did:
$SESSION['page1'] = $POST;

although if you could reply and give an explanation of the proper usage of foreach loading into an array that would be very helpful

weekender

you almost got it!

foreach($_POST as $key => $value) {     

     $_SESSION[$key] = $value;
}

that's how i'd do it - so if you have $POST['name']='adam', this would give you $SESSION['name'] = 'adam'

adam

LordShryku

Well, your cheat is what I would do, but the foreach way, with the declaration beforehand would be like this...

$_SESSION['page1'] = array();
foreach($_POST as $key => $value) {
   $_SESSION['page1'][$key] = $value;
}

helz

thanks for your replies.
i knew there was something like $_SESSION['jaja'] = array( before the loop but wasn't quite sure.

thanks lord. i did intent on having the session variable an array, so i can take another shortcut and do:
extract($_SESSION['page1']);

also another quick thing... the array $POST only has rows of data if the fields in the form have declared names.
like:
<input type='text' name='name'> <--- this would be found in $POST

<input type='submit' value='Submit!'> <--- this would not be found in $_POST

weekender

that's correct - if a field doesn't have a name, how will php know where to put it in the $_POST array? it's the same with any form handler / interpreter - you have to name your fields.

helz

thats good.
in my current project i think i will be creating a dynamic sql query with the names and variables so i dont want:
INSERT INTO table (name, age, submit) VALUES ('dave', '39', 'Submit!')
🙂

so, if ive learnt how to use foreach correctly... would this work for creating a dynamic sql query?

$sql = "INSERT INTO table (";
foreach($_POST as $key => $value) {
   $sql .= "$key, ";
}
$lastcomma = strrpos($sql,",");
$lastcomma--;//get position of char before last ,
$sql = substr($sql,0,$lastcomma);
$sql .= ") VALUES (";
foreach($_POST as $key => $value) {
  $sql .= "'$value',";
}
$lastcomma = strrpos($sql,",");
$lastcomma--;//get position of char before last ,
$sql = substr($sql,0,$lastcomma);
$sql .= ")";
echo $sql;

in the first foreach loop is there a way just to get the $keys and not the $values aswell?

LordShryku

That would work, but that seems like the longway of doing this...

$sql = "INSERT INTO table (".implode(",",array_keys($_POST)).")
             VALUES ('".implode("','".$_POST)."')";

😃

helz

yep, have to take the scenic route before i find the shortcut

having never used implode or explode it didnt come into my mind

more helpful tips from Lord =)
thanks to you to weekender

LordShryku

The scenic route is nice, but looping for the sake of looping, when a loop isn't neccesary isn't good. Loop generally eat away precious milliseconds, especially when they get large.