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Posted by Patrick on 09/19/06 18:08
Thanks John,
I will take a look at this and see what I can work out.
Patrick
petersprc@gmail.com wrote:
> Hi Patrick,
>
> Using php's associative arrays, you can map a key, which in your case
> is the result value you calculated, to a value, which would be the file
> contents. For example:
>
> $results[strvalue($yearDayValue)] = file_get_contents('file.dat');
>
> The strvalue function is used to convert the float into a string,
> because floats are truncated to integers when used directly as keys in
> an associative array.
>
> Here's a more extended usage example:
>
> <?
>
> function getResults()
> {
> $results = array(); // Results array
>
> // Get all *.data files in the current dir
> $files = glob('*.data');
>
> foreach ($files as $file) {
> // Read the contents of the file
> $contents = file_get_contents($file);
> // Call your function to calculate the result
> $result = getMyResult($contents);
> // Store the result. Convert the floating point key
> // into a string because float keys are truncated to
> // integers when used directly.
> $results[strval($result)] = $contents;
> }
>
> // Now $results maps the individual result to each
> // file's contents
>
> print_r($results);
> echo "\n";
>
> echo "There are " . count($results) . " results.\n\n";
>
> // Iterate over the results
>
> foreach ($results as $key => $value) {
> echo "The year-day value is $key and the file contains:\n\n" .
> "$value\n";
> }
> }
>
> function getMyResult($contents)
> {
> $result = 0;
> $lines = explode("\n", $contents);
> foreach ($lines as $line) {
> if ($line != '') {
> list($descent, $a, $b, $date, $time, $c, $d, $e, $f) =
> explode(' ', $line);
> $result += $f;
> }
> }
> return $result;
> }
>
> getResults();
>
> ?>
>
> Best Regards,
>
> John Peters
>
> Patrick wrote:
>
>>Hi All,
>>
>>I have numerous files that look like the chunk below. From the date and
>>time I calculate a year day value. For the example that value is
>>148.67721064815
>>
>>I'm not an expert yet at dealing with arrays, but I get around well in
>>php otherwise (reading data files, loops, functions, etc).
>>
>>My question is how would I go about creating an array that would hold
>>the year day as a key and the entire file contents in the next element?
>>Then when I advance to the next file do the same thing so that my ending
>>array would come out something like this;
>>
>>[yearday file1][file1 contents]
>>[yearday file2][file2 contents]
>>[yearday file3][file3 contents]
>>...
>>..
>>.
>>
>>Or is what I am wanting to do out of the question?
>>
>>Appreciate your help.
>>
>>Patrick
>>
>>File example;
>>
>>Descent 27.4279 -83.0965 05-29-06 16:15:11 55.052 26.52 0.95 35.28
>>Descent 27.4279 -83.0965 05-29-06 16:15:11 55.014 26.51 1.95 35.26
>>Descent 27.4279 -83.0965 05-29-06 16:15:11 55.047 26.50 3.04 35.29
>>Descent 27.4279 -83.0965 05-29-06 16:15:11 54.957 26.47 4.29 35.24
>>Descent 27.4279 -83.0965 05-29-06 16:15:11 54.947 26.45 5.33 35.25
>>Descent 27.4279 -83.0965 05-29-06 16:15:11 54.871 26.41 6.42 35.22
>>Descent 27.4279 -83.0965 05-29-06 16:15:11 54.875 26.36 7.52 35.25
>>Descent 27.4279 -83.0965 05-29-06 16:15:11 54.884 26.30 8.65 35.31
>>Descent 27.4279 -83.0965 05-29-06 16:15:11 54.887 26.24 9.78 35.35
>>
>>
>>--
>>Patrick A. Smith Assistant System Administrator
>>Ocean Circulation Group - USF - College of Marine Science
>>http://ocgweb.marine.usf.edu Phone: 727 553-3334
>>
>>The trouble with doing something right the first time is that nobody
>>appreciates how difficult it was. - La Rochefoucauld
>
>
--
Patrick A. Smith Assistant System Administrator
Ocean Circulation Group – USF - College of Marine Science
http://ocgweb.marine.usf.edu Phone: 727 553-3334
The trouble with doing something right the first time is that nobody
appreciates how difficult it was. - La Rochefoucauld
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