Array to hold multiple file content

**petersprc@gmail.com** · Sep 19 '06, 05:45 PM

Re: Array to hold multiple file content

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:

$results[strvalue($yearD ayValue)] = file_get_conten ts('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
$contents = file_get_conten ts($file);
// Call your function to calculate the result
$result = getMyResult($co ntents);
// 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($result s);
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($co ntents)
{
$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** · Sep 19 '06, 06:15 PM

Re: Array to hold multiple file content

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:
>
$results[strvalue($yearD ayValue)] = file_get_conten ts('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
$contents = file_get_conten ts($file);
// Call your function to calculate the result
$result = getMyResult($co ntents);
// 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 $results maps the individual result to each
// file's contents
>
print_r($result s);
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($co ntents)
{
$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
>>148.677210648 15
>>
>>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

Array to hold multiple file content

Array to hold multiple file content

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