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Full Discussion: Compare arrays (perl)
Top Forums Shell Programming and Scripting Compare arrays (perl) Post 302381764 by radoulov on Sunday 20th of December 2009 12:13:39 PM
Old 12-20-2009
Quote:
Originally Posted by mjoh
radulov:

I want to compare the 12 rows with one independent row, to see how many numbers that match in each row with the independent row.
[...]

You can use something like this:


Code:
#!/usr/bin/perl

use warnings;
use strict;

my @indi_numbers = ( 16, 35, 11, 30, 8, 9 );

open my $infile, '<', shift or die "open: $!\n";

while (<$infile>) {
    my %uniq;
    $uniq{$_} = 1 for split;
    my @matching = grep $uniq{$_}, @indi_numbers;
    print @matching ? ( ~~@matching, " matches : @matching " ) : "no matches ",
      "on line $.\n";
}

For example:


input data (infile)

Code:
16 6 21 4 45 13 30 
10 41 15 47 48 37 9 
19 16 5 33 29 14 8 
0 11 35 28 17 2 27 
39 17 39 22 12 48 23 
40 20 19 44 5 43 11

Output:

Code:
$ ./s infile
2 matches : 16 30 on line 1
1 matches : 9 on line 2
2 matches : 16 8 on line 3
2 matches : 35 11 on line 4
no matches on line 5
1 matches : 11 on line 6

 

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MSQL_FETCH_ROW(3)														 MSQL_FETCH_ROW(3)

msql_fetch_row - Get row as enumerated array

SYNOPSIS
array msql_fetch_row (resource $result) DESCRIPTION
msql_fetch_row(3) fetches one row of data from the result associated with the specified query identifier. The row is returned as an array. Each result column is stored in an array offset, starting at offset 0. Subsequent call to msql_fetch_row(3) would return the next row in the result set, or FALSE if there are no more rows. PARAMETERS
o $ result -The result resource that is being evaluated. This result comes from a call to msql_query(3). RETURN VALUES
Returns an array that corresponds to the fetched row, or FALSE if there are no more rows. EXAMPLES
Example #1 msql_fetch_row(3) example <?php $con = msql_connect(); if (!$con) { die('Server connection problem: ' . msql_error()); } if (!msql_select_db('test', $con)) { die('Database connection problem: ' . msql_error()); } $result = msql_query('SELECT id, name FROM people', $con); if (!$result) { die('Query execution problem: ' . msql_error()); } while ($row = msql_fetch_row($result)) { echo $row[0] . ': ' . $row[1] . " "; } msql_free_result($result); ?> CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.0.4 | | | | | | | A bug was fixed when retrieving data from col- | | | umns containing NULL values. Such columns were | | | not placed into the resulting array. | | | | +--------+---------------------------------------------------+ SEE ALSO
msql_fetch_array(3), msql_fetch_object(3), msql_data_seek(3), msql_result(3). PHP Documentation Group MSQL_FETCH_ROW(3)
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