Generate thesis reference bibitem line

thesis_ref_line

<?php

$line = 'design Design of Evolvable Computer Languages  2002    IEEE TRANSACTIONS ON EVOLUTIONARY COMPUTATION   6   4   420-424 Charles Ofria   Christoph Adami Travis C. Collier'; // delimiter is tabstop
print thesis_reference_line($line);

// for each line of file
function thesis_reference_line($line)
{
    // split with tab
    $datas      = explode("\t", $line);

    // init variables (or this function'f feature)
    $item       = $datas[0];
    $thesis     = $datas[1];
    $year       = $datas[2];
    $magazine   = $datas[3];
    $vol        = $datas[4];
    $num        = $datas[5];
    $page       = $datas[6];
    $authors    = array_slice($datas, 7);

    $ref = "";

    // add bibitem control
    $ref .= '\\bibitem{' . $item . '} ';

    // add authors
    $authors_except_last    = array_slice($authors, 0, count($authors) - 1);
    $author_last            = $authors[count($authors) - 1];

    $ref .= implode(', ', $authors_except_last) . ' and ' . $author_last;
    $ref .= ', ';

    // add thesis title
    $ref .= '``' . $thesis . ',"'; // use tex quote syntax
    $ref .= ', ';

    // add magazine
    $ref .= '\emph{' . $magazine . '}'; // tex italic


    // add volume
    if ($vol !== "")
    {
        $ref .= 'Vol. ' . $vol;
        $ref .= ', ';
    }

    // add number
    if ($num !== "")
    {
        $ref .= 'No. ' . $num;
        $ref .= ', ';
    }

    // add page number
    if ($page !== "")
    {
        $ref .= 'pp. ' . $page;
        $ref .= ', ';
    }

    if ($year !== "")
    {
        $ref .= '(' . $year . ')';
    }

    $ref .= '.';
    $ref .= "\n";

    return $ref;
}