for loop of variables

[malikah]

I have a list of variables:

 

 

$varibl01="abc";

$varibl02="def";

$varibl03="ghi";

$varibl04="jkl";

$varibl05="mno";

 

and I want to access each of them in a for loop:

 

for($i=0;$i<5;$i++){

echo $varibl0x //where "x" is $i - is there a way to do this?

}

 

Cheers.

[premiso]

Better to use an array for this but yea...

 

for($i=0;$i<5;$i++){
    $newvar = "varibl0" . $x;
    
    echo $$newvar; //where "x" is $i - is there a way to do this?
}

 

Not sure if that will work, I think it will but yea...

[DarkerAngel]

Is there no way you can make this an array and have

$varibl = array();
$varibl[01]="abc";
$varibl[02]="def";
$varibl[03]="ghi";
$varibl[04]="jkl";
$varibl[05]="mno";

 

then you can simply use:

 

foreach($varibl as $value) {
echo $value;
}

 

There is a way to use the eval(); function but thats not very trustworthy coding.

[malikah]

Here's the original code I'm playing with:

 

while (list($a1, $b1, $a2, $b2, $a3, $b3, $a4, $b4, $a5, $b5) = mysql_fetch_row($xyzQuery))
{
//I want to refer to the $a's here..
}

[premiso]

while ($row = mysql_fetch_row($xyzQuery))
{
    foreach ($row as $val) {
         echo $val;
    }
}

 

That makes it easier =)

[malikah]

while ($row = mysql_fetch_row($xyzQuery))
{
    foreach ($row as $val) {
         echo $val;
    }
}

 

That makes it easier =)

I don't want to change the original code - I want to access each of the $a's in a for loop by referring to their last digit.

[premiso]

Instead why not just access them via the array index???

 

while ($row = mysql_fetch_row($xyzQuery))
{
    for ($i=0;$i<5;$i++) {
         echo $row[$i];
    }
}

 

Same principle, just easier and more efficient to do....

 

What is your logic behind assigning them to variables and not just using the array index?

[malikah]

Because I don't know what $row is - what happened to the list?

[premiso]

Because I don't know what $row is - what happened to the list?

 

The list is not needed, that just broke out the array.

 

$row is an array that contains all the data that list broke out inside of it's self to be accessed as shown above.

 

I would suggest reading up on array's They are like a storage container for data to be easily access/iterated through.

[Maq]

If you want to refer to them by there last digits then you need to take the sub string from the actual variable name.  This, for example, will display all the variables with a 1 at the end of the variable.

 

*NOT TESTED*

 

while ($row = mysql_fetch_row($xyzQuery))
{
    for ($i=0;$i         if(substr($$row[$i], 1) == 1) {
             echo $row[$i];
         }
    }
}

 

or you can access by first letter...

 

$string = $$row[$i];
if($string[1] == 'a') {
    echo $row[$i];
}

[malikah]

Premiso - $row worked, thank you very much.

[malikah]

Only problem now is that I have to go back and find out which table item each $row[$i] refers to - whereas unique names for each item would have made it simpler. I guess it's hard to win either way.

[premiso]

You can use mysql_fetch_assoc and call them by the column names, or simply pull them out of the DB in the order you want.