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convert read data to variable

Posted on 2002-05-06
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Last Modified: 2010-03-05
I have a text file called file1.txt. I want to be able to read in a line of that file (let's say the line is "score=2"). I now want to be able to use that as a variable and value in my current program.

In other words, I now want to have a variable called "$score" in my current program and have it's value set to "2" based on the data I read in from the text file.

I don't know what I will be reading in from the text file but I do know that it will always be [variable]=[value] so I can't predetermine the variable name because I don't know what it will be until I read it from the text file.

Is this possible? and if so how do I do it?

Thanks.
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Question by:johnsm
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4 Comments
 
LVL 84

Expert Comment

by:ozo
ID: 6992136
/(\w+)=(.*)/;
$$1 = $2;
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LVL 1

Author Comment

by:johnsm
ID: 6992146
What exactly does that do? I can't seem to use it properly, it just halts my execution with no errors.

How would it fit in here?
<pre>

while ($data=<DATAFILE>) {
  /(\w+)=(.*)/;
  $$1 = $2;
}
</pre>

{sorry if the tags show up.}





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LVL 84

Accepted Solution

by:
ozo earned 800 total points
ID: 6992236
while( $data=<DATAFILE> ){
    $data =~ /(\w+)=(.*)/;
    $$1 = $2;
}
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LVL 1

Author Comment

by:johnsm
ID: 6992245
ah, I see. I'm not sure how or why it works, but it does, thanks.

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