Problems with Loops / For's / Cycles

[rubahfgouveia]

Hey guys, i'm kind of stuck here, and was wondering if anyone could give me a hand. I'm kind of new in PHP, and currently I'm experiencing a cycle problem.

 

I have a php page that recieve a list of variable number of arrays (it can be one array, or even 10), and what i want the cycle to do is, is to print out each value contained in each array.

 

Example of variables recieved through POST:

([course1] => Array ( [0] => BBB [1] => YA ) [course2] => Array ( [0] => EWA) [course3] => Array ( [0] => aaa))

 

 

 

for($i = 0; $i < $num_course; $i++) // num_course is the number of arrays (course0,course1) that are recieved
		{
                  
                 $test = "course".$i;
     
                 for($x = 0; $x < sizeof([color=red]$test[/color]); $x++)
                   {

                   echo("[color=red]$test[$x][/color]");
                   }

                        }

 

 

I think that the problem here is the $test variable. I don't what the sizeof($test), but yes the sizeof(course0, course1,etc) .. and also, i don't what to echo the $test[$x] variable, but yes the $course0[$x], $course1[$x], etc...

 

 

i hope i made myself clear  :?

 

I would glady appreciate any help!

[sasa]

try

for($i = 0; $i < $num_course; $i++) // num_course is the number of arrays (course0,course1) that are recieved
		{
                  
                 $test = "course".$i;
     
                 for($x = 0; $x < sizeof($$test); $x++) //ad one more $
                   {

                   echo($$test[$x]); //same here
                   }

                        }

[rubahfgouveia]

Hay sasa, thanks alot for the reply

 

The code's working fine, except the last echo ( echo($$test[$x]). It's not echoing anything..

 

 

 

for($i = 0; $i < $num_course; $i++) // num_course is the number of arrays (course0,course1) that are recieved
         {
                 
                 $test = "course".$i;
     
                 for($x = 0; $x < sizeof($$test); $x++) //ad one more $ (works fine)
                   {
                    
                   echo $$teste // works out fine, it knows it's arrays

                   echo($$test[$x]); // doesn't work. just can't get the values of the array printed out

                   echo ($$teste[0]); //i even tried to print out a value manually, but it's not working also

                 
                   }

                        }

[kickstart]

Hi

 

Think I would use a pair of foreach loops

 

foreach($_POST AS $Field=>$Value) 
{
if (substr($Field,0,6) == 'course')
{
	foreach($Value AS $SomeArrayValue)
	{
		echo $SomeArrayValue;
	}
}
}

 

All the best

 

Keith

[wildteen88]

Wrap $test within curly braces

echo(${$test}[$x]);

[rubahfgouveia]

echo(${$test}[$x]); => still doesn't print out anything..

 

 

thanks, Ruben Gouveia

 

EDIT: my fault, it's working fine !!!

 

thanks all for the help

[rubahfgouveia]

sorry to bother again:

 

Now i'm trying to do a querie with the values from the array, but its not getting the (${$test}[$x]) values. Do i have to change the syntax again?

 

$resultado = mysql_query("SELECT DISTINCT * FROM Curso WHERE Curso.Nome_Curso = '${$test}[$x]'");

[wildteen88]

Wrap ${$test}[$x] in curly braces again, {${$test}[$x]}