Declare variable using other incr. variable.

[johnyp]

Can anyone see the error here?

What i am trying to do is declare 3 variables for 15 categories named $var_category number_1 up to 3.

 

The error must be in the variables $features_$x_1 name but i am too new to find out.

Thank you.

 

// <!-- ---------------------------------------------------------------------------------------------------- -->

$x=1;
while($x <= 15)
{

$results = mysql_query("SELECT * FROM features where catid = $x");
$num_rows = mysql_num_rows($results);
$ii = $num_rows/3;
$ii = round($ii, 0, PHP_ROUND_HALF_UP);
$i = 1;
while($r = mysql_fetch_assoc($results))
{
if ($i > 00 && $i <= $ii){$features_$x_1.= "<input type='checkbox' name='features($r[id])' value='1' />$r[name] </br>";}
if ($i > $ii && $i <= $ii*2){$features_$x_2.= "<input type='checkbox' name='features($r[id])' value='1' />$r[name] </br>";}
if ($i > $ii*2 && $i <= $ii*3){$features_$x_3.= "<input type='checkbox' name='features($r[id])' value='1' />$r[name] </br>";}	        
        $i++;
        }	
$x=$x+1;       
}
        	
mysql_close();

?>

[scootstah]

You would need variable variables here. Something along the lines of:

if ($i > 00 && $i <= $ii){$var_name = "$features_{$x}_1"; $$var_name .= "<input type='checkbox' name='features($r[id])' value='1' />$r[name] </br>";}

 

But, that looks hideous. Can't you just use arrays?

$features[$x] = "<input type='checkbox' name='features($r[id])' value='1' />$r[name] </br>";

[johnyp]

Thank you scootstah. No i can not use array because the variable has the category number and the split number also.

 

This does not work also:

 

$x=1;
while($x <= 15)
{

$results = mysql_query("SELECT * FROM features where catid = $x");
$num_rows = mysql_num_rows($results);
$ii = $num_rows/3;
$ii = round($ii, 0, PHP_ROUND_HALF_UP);
$i = 1;
while($r = mysql_fetch_assoc($results))
{
if ($i > 00 && $i <= $ii){$var_name = "$features_{$x}_1"; $$var_name .= "<input type='checkbox' name='features($r[id])' value='1' />$r[name] </br>";}
if ($i > $ii && $i <= $ii*2){$var_name = "$features_{$x}_2"; $$var_name .= "<input type='checkbox' name='features($r[id])' value='1' />$r[name] </br>";}
if ($i > $ii*2 && $i <= $ii*3){$var_name = "$features_{$x}_3"; $$var_name .= "<input type='checkbox' name='features($r[id])' value='1' />$r[name] </br>";}	        
        $i++;
        }	
$x=$x+1;       
}

[scootstah]

What about, $features[$x][1], $features[$x][2], $features[$x][3]

[johnyp]

I must include the variable later and i can use code for explode that is why i need variables only.

 

Any other suggestions?

[johnyp]

If i use array how can i include the data when needed? I now use echo $var name.

[scootstah]

You can use the index, or loop through it.

[johnyp]

Can you give me a small example please? Thank you

[scootstah]

http://us.php.net/manual/en/language.types.array.php