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<?php
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/**
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* The Excel exporter currently is just a tab-delimited export.
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*/
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class webform_exporter_excel_delimited extends webform_exporter_delimited {
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/**
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* {@inheritdoc}
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*/
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public function __construct($options) {
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$options['delimiter'] = '\t';
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parent::__construct($options);
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}
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/**
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* {@inheritdoc}
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*/
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public function bof(&$file_handle) {
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$output = '';
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// Include at BOM at the beginning of the file for Little Endian.
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// This makes tab-separated imports work correctly in MS Excel.
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if (function_exists('mb_convert_encoding')) {
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$output = chr(255) . chr(254);
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}
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@fwrite($file_handle, $output);
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}
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/**
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* {@inheritdoc}
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*/
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public function add_row(&$file_handle, array $data, $row_count) {
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foreach ($data as $key => $value) {
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// Escape inner quotes and wrap all contents in new quotes.
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$data[$key] = '"' . str_replace('"', '""', $data[$key]) . '"';
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// Remove <script> tags, which mysteriously cause Excel not to import.
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$data[$key] = preg_replace('!<(/?script.*?)>!', '[$1]', $data[$key]);
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}
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$row = implode($this->delimiter, $data) . "\n";
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if (function_exists('mb_convert_encoding')) {
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$row = mb_convert_encoding($row, 'UTF-16LE', 'UTF-8');
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}
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@fwrite($file_handle, $row);
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}
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/**
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* {@inheritdoc}
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*/
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public function set_headers($filename) {
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drupal_add_http_header('Content-Type', 'application/x-msexcel');
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drupal_add_http_header('Content-Disposition', "attachment; filename=$filename.xls");
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drupal_add_http_header('Pragma', 'public');
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drupal_add_http_header('Cache-Control', 'max-age=0');
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}
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}
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