How to increment the search count in php/mysql? - php

Question

I have a table consists of several fields (id, firstname, surname, username, search_count)
I've build a small search engine that search my table to find any match exists either in the firstname or in the surname and I am getting the results with no problems.
Now, what I am trying to do is to increment the search_count field by 1 every time there is a match!
For example let's say we have the following table users:
id | firstname | surname | username | search_count
1 | John | Mike | un1 | 0
2 | John | Jeff | un2 | 0
3 | Dale | John | un3 | 0
4 | Mike | Gorge | un4 | 0
and let's say we are searching for Jeff as a keyword
so, the query will return 1 record
what I want to do is to increment the search_count by 1 for match record
so the results will be something like as:
id | firstname | surname | username | search_count
2 | John | Jeff | un2 | `1`
and if we make a new search (e.g. John) the results should be something like:
id | firstname | surname | username | search_count
1 | John | Mike | un1 | 1
2 | John | Jeff | un2 | 2
3 | Dale | John | un3 | 1
I've tried several approach but with no luck.. So I appreciate any hints and help
here is my code...
<?php
// open the HTML page
include 'html_open.php';
// require the db connection
require '/inc/db.inc.php';
// require the error messages
require '/inc/echo.inc.php';
if (isset($_GET['keyword'])) {
$keyword = $_GET['keyword'];
if (!empty($keyword)) {
// build our search query
$search_query = "SELECT * FROM `users` WHERE `firstname` = '".mysql_real_escape_string($keyword)."' OR `surname` = '".mysql_real_escape_string($keyword)."' ORDER BY `search_count` DESC";
// run the search query
$search_query_run = mysql_query($search_query);
// search results
$search_results_num = mysql_num_rows($search_query_run);
// check query return results
if ($search_results_num>0) {
echo 'Search engine returns <strong>[ '.$search_results_num.' ]</strong> result(s) for <strong>[ '.$keyword.' ]</strong>:<br>';
// retrieving the information found
echo '<ol>';
while ($search_result_information = mysql_fetch_assoc($search_query_run)) {
//$current_search_count = ;
echo '<li>'.$search_result_information['username'].'. This user has been searched: '.$search_result_information['search_count'].' times before.</li>';
}
echo '</ol><hr>';
include 'search_form.php';
} else {
echo '<hr>Search engine returns no result for <strong>[ '.$keyword.' ]</strong>, please try another keyword.<hr>'; // hint: no result found
include 'search_form.php';
}
} else {
echo $err20_002; // hint: must insert input
include 'search_form.php';
}
} else {
echo $err20_001; // hint: form has not been submitted
include 'search_form.php';
}
// close the HTML page
include 'html_close.php';
?>
P.S. I am new to PHP / MySQL and this is my first code :)

Answer 1

...
while ($search_result_information = mysql_fetch_assoc($search_query_run)) {
# add this following line
mysql_query('UPDATE `users` SET search_count=search_count+1 WHERE id='.$search_result_information['id']);
# Edit. Change result to show new number
$search_result_information['search_count']++; # this adds 1 to the value (does not affect stored data in database)
echo '<li>'.$search_result_information['username'].'. This user has been searched: '.$search_result_information['search_count'].' times before.</li>';
}
...

Answer 2

In your case you need to fetch the found values and perform an update statement adding +1 to the search_count column
$search_query = "SELECT id, firstname, surname, username, search_count FROM `users` WHERE `firstname` = '".mysql_real_escape_string($keyword)."' OR `surname` = '".mysql_real_escape_string($keyword)."' ORDER BY `search_count` DESC";
$search_query_run = mysql_query($search_query);
// search results
$search_results_num = mysql_num_rows($search_query_run);
// check query return results
if ($search_results_num>0) {
echo 'Search engine returns <strong>[ '.$search_results_num.' ]</strong> result(s) for <strong>[ '.$keyword.' ]</strong>:<br>';
// retrieving the information found
echo '<ol>';
while ($search_result_information = mysql_fetch_assoc($search_query_run)) {
//$current_search_count = ;
$update_search = "UPDATE users SET search_count = search_count + 1 WHERE id = {$search_result_information['id']}"; // so every `id` will increment its search_count with 1. You will need to select the rows once again, to take this count, or to manually increment in PHP
mysql_query($update_search);
echo '<li>'.$search_result_information['username'].'. This user has been searched: '.$search_result_information['search_count'].' times before.</li>';
P.S.: Using mysql_* lib is strongly NOT recommended. As you can see from the red box in the official documentation http://www.php.net/manual/en/function.mysql-query.php you should choose one of the current actually supported APIs