Problems with Arrays!!!

[Emmash]

Hi,

I'm having a problem with array's functions

//Making the list of the differents arrays
if($cpt_couleur+1<count($_POST["couleur"])){
$liste_tableaux_couleur.=${"tab_resultat_couleur".$cpt_couleur}.",";
}
else{
$liste_tableaux_couleur.=${"tab_resultat_couleur".$cpt_couleur};
}

//Keeping only the numbers that are present in each table
if(count($_POST["couleur"])>1){
$tab_resultat_couleur=array_merge(array_intersect($liste_tableaux_couleur));
}
else{
$tab_resultat_couleur=$liste_tableaux_couleur;
}

The problem is that array_intersect needs 2 parameters to work... I've
also tried with dynamic variables but I think I code the wrong thing 'cause it
didn't solve my problem... Is there any way to just write the content of
the variable $liste_tableaux_couleur in the function array_intersect...
something that would execute the line like :
$tab_resultat_couleur=array_merge(array_intersect($tab_resultat_couleur0,$tab_resultat_couleur1,$tab_resultat_couleur2));
...

Thanks a lot!!!!

Marie-Hélène

[Emmash]

I just want to find a way to write the content of the variable

$liste_tableaux_couleur

in my function

array_intersect()

to have something like

array_intersect($table1,$table2,$table3...)

... all the names of tables are in my variable

$liste_tableaux_couleur

but I can't do

array_intersect($liste_tableaux_couleur)

, because I get the error that the function needs 2 parameters, is there a way to write the values of my variable directly into the parenthesis of the function????

$liste_tableaux_couleur

is not an array but a string variable that contains, by example, differents names of tables like

"$table1,$table2,$table3"

The variable

$liste_tableaux_couleur

is in a loop because it can contains 2 table or 3 or 4...etc... depending on what the users chose.

Thanks a lot,

Marie-Hélène

[Weedpacket]

Instead of putting the names of the arrays in a string, put the arrays in an array.

$liste_tableaux_couleur = array(
    $table1,
    $table2,
    $table3);

And then use a PHP function which let's you say "This is a function, these are what I want to pass with it, call this with these."

$common_colours = call_user_func_array('array_intersect', $liste_tableaux_couleur);

Another approach may be to rely on the fact that array_intersect($table1, $table2, $table3) is the same thing as array_intersect(array_intersect($table1, $table2), $table3). You're already using a loop, so you can use that to add arrays to the intersection list in sequence. Put everything in the first array into $liste_tableaux_coleur. Then use $liste_tableaux_couleur = array_intersect($liste_tableaux_couleur, $table2)) to take out everything that is not in $table2. Repeat for the rest of the tables.

[Emmash]

Hi everyone,

a man on another forum helps me get my answer.. so here it is :

eval( '$tab_resultat_couleur = array_merge(array_intersect(' . $liste_tableaux_couleur . '));' );

Have a nice day!

Marie-Hélène