Incremental string names

[sjmo2]

I have multiple variables created from a form such as : $X1, $X2, $X3

I wish to manipulate these variable for placement into MySQL but would like to stream,line the code to loop for each variable as opposed to rewriting the same instructions.

For example:
Instead of writing:

$Y1=subtr ($X1, 0,5 );
$Y2=subtr ($X2, 0,5 );
$Y3=subtr ($X3, 0,5 );

Would like to perform something like:

for ($i=1, $i<4, $i++)
{$Y($i)=substr ($X($i), 0, 5);}

** Obviously the code above is not correct with $Y($i) but therein is the problem, I know this is coding 101 but I am new to this and any help would be greatly appreciated.

[Nixon]

Hav you looked into array's?

[sjmo2]

Still not sure how arrays would work through this.

[Nixon]

$Y[1] = substr(........)
$Y[2] = substr(........)

$x = 5; // Number of iterations needed.
$i = 0;

while ( $i < $x )

{

$Y[$i] = substr(.....)

i++;

}

[laserlight]

You can use variable variables, but using arrays would probably be better.

e.g. using variable variables:

for ($i = 1; $i < 4; $i++) {
	${'Y' . $i} = substr(${'X' . $i}, 0, 5);
}

With arrays this is simplified to:

for ($i = 1; $i < 4; $i++) {
	$Y[$i] = substr($X[$i], 0, 5);
}