1) 
@trial_array = ("first", "second", "third");

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to access second elements of the array, I can use following syntax

$sec_el = $trial_array[1];

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now if I am reading in a file datacapture.cgi which has following content
"this is a data file.
 This ie read in array.
 this is looped through"

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$datafile = datacapture.cgi;
open(DAT, $datafile);
@data_array = <DAT>;

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now each line becomes an element of @data_array. so there are three elements $data_array[0], $data_array[1] and $data_array[2] in @data_array.

if I want to loop through this array using foreach, do I need to use $data_array variabke only or can I use any variable ?
foreach $loopvariable (@data_array)
{
    print $loopvariabe ;
}

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does it mean that $loopvariable will be assigned the elelments of @data_array one by one ? or do I need to use $data_array[] directly ?

foreach (@data_array)
{ print $data_array ; } #this looks like wrong syntax

2) Do we need to declare array elemnts in double quotes only or can we declare it in single quotes also ? what if array elements are declared without any quotes ? will it be a syntax error ?

In reply to looping through array by manishrathi

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