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+<html>
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+ <head>
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+ <title>Pali Full Text Search Example @ PostgreSQL</title>
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+ <style>
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+ * {
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+ font-family: "Noto Sans", "Noto Sans SC", "Noto Sans TC", "Padauk", "ATaiThamKHNewV3-Normal", Arial, Verdana;
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+ }
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+ td {
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+ border-right-style: solid;
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+ border-top-style: solid;
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+ }
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+ table {
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+ border-style: solid;
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+ }
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+ table span {
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+ background-color: yellow;
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+ font-size: 1.2em;
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+ }
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+ th {
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+ font-weight: bold;
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+ }
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+ input[name="q"] {
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+ width: 70%;
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+ }
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+ </style>
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+ </head>
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+
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+ <body>
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+ <?php
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+ if ($_SERVER["REQUEST_METHOD"] == "POST") {
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+ // collect value of input field
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+ $q = $_POST['q'];
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+ }
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+ ?>
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+ <form method="post" action="<?php echo $_SERVER['PHP_SELF'];?>">
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+ Name: <input type="text" name="q" value="<?php echo $q ?>">
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+ <input type="submit">
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+ </form>
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+ <?php
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+ if (empty($q)) {
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+ echo "Query is empty";
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+ } else {
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+ // Connecting, selecting database
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+ $dbconn = pg_connect("host=localhost dbname=pali user=postgres password=123456")
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+ or die('Could not connect: ' . pg_last_error());
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+
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+ // Performing SQL query
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+ $query = "SELECT
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+ ts_rank('{0.1, 0.2, 0.4, 1}',
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+ full_text_search_weighted,
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+ websearch_to_tsquery('pali', '$q')) +
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+ ts_rank('{0.1, 0.2, 0.4, 1}',
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+ full_text_search_weighted_unaccent,
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+ websearch_to_tsquery('pali_unaccent', '$q'))
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+ AS rank,
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+ ts_headline('simple', content,
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+ websearch_to_tsquery('simple', '$q'),
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+ 'StartSel = <span>, StopSel = </span>')
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+ AS highlight,
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+ *
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+ FROM fts
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+ WHERE
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+ full_text_search_weighted
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+ @@ websearch_to_tsquery('pali', '$q') OR
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+ full_text_search_weighted_unaccent
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+ @@ websearch_to_tsquery('pali_unaccent', '$q')
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+ ORDER BY rank DESC
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+ LIMIT 20;";
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+ $result = pg_query($query) or die('Query failed: ' . pg_last_error());
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+
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+ // Printing results in HTML
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+ echo "<table>\n";
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+ echo "<tr>
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+ <th>rank</th>
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+ <th>highlight</th>
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+ <th>paragraph</th>
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+ <th>book</th>
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+ <th>wid</th>
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+ <th>bold_single</th>
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+ <th>bold_double</th>
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+ <th>bold_multiple</th>
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+ <th>content</th>
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+ <th>TSVECTOR</th>
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+ <th>TSVECTOR (unaccent)</th>
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+ </tr>";
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+ while ($line = pg_fetch_array($result, null, PGSQL_ASSOC)) {
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+ echo "\t<tr>\n";
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+ foreach ($line as $col_value) {
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+ echo "\t\t<td><div class='cell'>$col_value</div></td>\n";
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+ }
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+ echo "\t</tr>\n";
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+ }
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+ echo "</table>\n";
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+
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+ // Free resultset
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+ pg_free_result($result);
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+
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+ // Closing connection
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+ pg_close($dbconn);
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+ }
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+ ?>
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+ </body>
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+</html>
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Vito Van
