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--TEST--
marc_field_003: Add subfields to an existing field
--FILE--
<?php
$dir = dirname(__FILE__);
require 'File/MARC.php';
// create some subfields
$subfields[] = new File_MARC_Subfield('a', 'nothing');
$subfields[] = new File_MARC_Subfield('z', 'everything');
// create a field
$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 = $field->getSubfields('z');
// we might get an array back; in this case, we want the first subfield
if (is_array($sf)) {
$field->insertSubfield($subfield2, $sf[0]);
}
else {
$field->insertSubfield($subfield2, $sf);
}
// insert a new subfield prior to the first subfield with code 'z'
// expected order: a-t-z-k-g
$sf = $field->getSubfields('z');
// we might get an array back; in this case, we want the first subfield
if (is_array($sf)) {
$field->insertSubfield($subfield3, $sf[0], true);
}
else {
$field->insertSubfield($subfield3, $sf, true);
}
// let's see the results
print $field;
print "\n";
?>
--EXPECT--
100 0 _anothing
_ta lot
_zeverything
_ka bit more
_ga little