Edit File: subfields.php
<?php require 'File/MARC.php'; // File_MARC offers the ability to add subfields at any point within // an existing set of subfields // First, create some subfields $subfields[] = new File_MARC_Subfield('a', 'nothing'); $subfields[] = new File_MARC_Subfield('z', 'everything'); // Then, create a field including those subfields $field = new File_MARC_Data_Field('100', $subfields, '0'); // Create some new subfields $subfield1 = new File_MARC_Subfield('g', 'a little'); $subfield2 = new File_MARC_Subfield('k', 'a bit more'); $subfield3 = new File_MARC_Subfield('t', 'a lot'); // Append a new subfield to the existing set of subfields // Expected order: a-z-g $field->appendSubfield($subfield1); // Insert a new subfield after the first subfield with code 'z' // Expected order: a-z-k-g $sf = $field->getSubfields('z'); // getSubfields() always returns an array; we just want the first subfield if (count($sf) > 0) { $field->insertSubfield($subfield2, $sf[0]); } // Insert a new subfield prior to the first subfield with code 'z' // Expected order: a-t-z-k-g $sf = $field->getSubfield('z'); // getSubfield() simply returns the first matching subfield if ($sf) { $field->insertSubfield($subfield3, $sf, true); } // let's see the results print $field; print "\n"; ?>
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