Using multiple tables in a search engine? - php

Question

To clean and tidy-up my code, I want to add multiple tables with the fields:
id
title
description
keywords
link
but I also want them in sections so in MySql I want different tables with categories such as: "News", "Social Networking" and "Shopping", but how can I get that? This is my code:
<?php
if( count($terms) == 0){ // If no terms entered, stop.
echo "No Search Terms Entered.";
}else{
// connect
$connect = mysql_connect("XXX", "XXX", "YYY") or die('Couldn\'t connect to MySQL Server: ' . mysql_error());
mysql_select_db("theqlickcom_774575_db1", $connect ) or die('Couldn\'t Select the database: ' . mysql_error( $connect ));
/* Query Statement Building - Terms together */
$query = " SELECT * FROM scan WHERE ";
$terms = array_map('mysql_real_escape_string', $terms);
$i = 0;
foreach ($terms as $each) {
if ($i++ !== 0){
$query .= " AND ";
}
$query .= "keywords LIKE '%{$each}%'";
}
$query = mysql_query($query) or die('MySQL Query Error: ' . mysql_error( $connect ));
$numrows = mysql_num_rows($query);
if ($numrows > 0) {
while ($row = mysql_fetch_assoc($query)) {
$id = $row['id'];
$title = $row['title'];
$description = $row['description'];
$keywords = $row['keywords'];
$link = $row['link'];
echo '<h2><a class="ok" href="' . $link . '">' . $title . '</a></h2>' . PHP_EOL;
echo '<p class="kk">' . $description . '<br><br><span class="keywords">' . PHP_EOL;
echo '<p><a class="okay" href="' . $link . '">' . $link . '<br><br><span class="keywords">' . PHP_EOL;
}
} else {
/* Query Statement Building - Terms Separate */
$query = " SELECT * FROM scan WHERE ";
$terms = array_map('mysql_real_escape_string', $terms);
$i = 0;
foreach ($terms as $each) {
if ($i++ !== 0){
$query .= " OR ";
}
$query .= "keywords LIKE '%{$each}%'";
}
$query = mysql_query($query) or die('MySQL Query Error: ' . mysql_error( $connect ));
$numrows = mysql_num_rows($query);
if ($numrows > 0) {
while ($row = mysql_fetch_assoc($query)) {
$id = $row['id'];
$title = $row['title'];
$description = $row['description'];
$keywords = $row['keywords'];
$link = $row['link'];
echo '<h2><a class="ok" href="' . $link . '">' . $title . '</a></h2>' . PHP_EOL;
echo '<p class="kk">' . $description . '<br><br><span class="keywords">' . PHP_EOL;
echo '<p><a class="okay" href="' . $link . '">' . $link . '<br><br><span class="keywords">' . PHP_EOL;
}
} else {
echo "No results found for \"<b>{$k}</b>\"";
}
}
//disconnect
}
?>

Answer 1

If you have to search multiple table with one query
1.use mysqli
2.use UNION ALL in query
Join table
use mysql procedure