Question

Interested in using the jQuery UI autocomplete feature to connect with a large MySQL database of events. Will this slow down each page significantly?(Search bar will be on all pages)

Should I store the results from the Query to Local Storage put the script at the bottom of the page? Or SESSION or Cookie?

Here is the code without any cache features.

<?php

require_once("../../connect.php");
$day_events = "SELECT * FROM tbl_events";
$events_result = mysql_query($day_events);

?>

<script>
    $(function() {
    var availableTags = [
<?php

  while($event_row=mysql_fetch_array($events_result)) {
  echo "\"".$event_row['event']."\",\n";
  }

?>
    ];
    $( "#tags" ).autocomplete({
        source: availableTags
    });
});
</script>

**EDIT: To clarify my question is will using the autocomplete slow down pages significantly? If so what methods can be used to improve this?

Answer 1

<script> 
$().ready(function() {
$('#tag').autocomplete('tag.php?find=tag', {
          width: 260,
          matchContains: true,
          selectFirst: false
        });
});
</script>

<?php
//in tag.php
$find = $_GET["find"];
if($find=='tag'){
    $q = strtolower($_GET["q"]);
    if (!$q) return;
    $sql = "select DISTINCT tag from tag where name_tag LIKE '%$q%'";
    $rsd = mysql_query($sql);
    while($rs = mysql_fetch_array($rsd)) {
        $cname = $rs['name_tag'];
        echo "$cname\n";
    }
}
?>

<input id='tag' type='text'>