Search results

anevins · March 10, 2011

Hi,

I have a problem if users search something which doesn't match the data in the table I'm selecting from.

At the moment I'm trying this code:

<?php 
require_once('inc/global.inc.php');

# search.inc.php

/* 
*	This is the search content module.
*	This page is included by index.php.
*	This page expects to receive $_GET['terms'].
*/

// Redirect if this page was accessed directly:
if (!defined('BASE_URL')) {

// Need the BASE_URL, defined in the config file:
require_once ('../includes/config.inc.php');

// Redirect to the index page:
$url = BASE_URL . 'index.php?p=search';

// Pass along search terms?
if (isset($_GET['terms'])) {
	$url .= '&terms=' . urlencode($_GET['terms']);
}

header ("Location: $url");
exit;

} // End of defined() IF.

// Print a caption:
echo '<h2>Search Results</h2>';

// Display the search results if the form
// has been submitted.
if (isset($_GET['terms']) && ($_GET['terms'] != 'Search...') ) {

$terms = $_GET['terms'];
$dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME) or die *('Error connecting to MySQL server');
// Query the database.
$query = "SELECT * FROM product WHERE title LIKE '%$terms%'";

// Fetch the results.
//$row = mysqli_fetch_array($result);

// Print the results:

	$result=mysqli_query($dbc,$query);

	if ($result == 0){
	  echo "<h3>Sorry,</h3>";
	  echo "<p>your search: "" .$terms. "" returned zero results</p>";
	}

	while($row=mysqli_fetch_assoc($result)) {

			$output[] = '<ul>';
			$output[] = '<li>'.$row['title'] .': £'.$row['price'].'<br /><img src="'.$row['img'].'" alt="'.$row['title'].'" /></li>';
			$output[] = '</ul>';
	}
	echo join('',$output);
}

else { // Tell them to use the search form.
echo '<p class="error">Please use the search form at the top of the window to search this site.</p>';
}	



?>

But I'm getting this error:

Object of class mysqli_result could not be converted to int

So that little if statement here doesn't work:

	if ($result == 0){
	  echo "<h3>Sorry,</h3>";
	  echo "<p>your search: "" .$terms. "" returned zero results</p>";
	}

Is there another way I can display no search matched results?

Thank you for reading,

Andrew.

jordanmoore · March 10, 2011

Hello,

I took a quick look at your code and I've had this following idea. Try using this line of code:

if ($result === false){
    echo "<h3>Sorry,</h3>";
    echo "<p>your search: "" .$terms. "" returned zero results</p>";
}

anevins · March 10, 2011

That gets rid of one error; for that particular if statement, but now I have another error which I think is greater than this if statement.

Here's the new error:

Undefined variable: output

So the new code is:

<?php 
require_once('inc/global.inc.php');

# search.inc.php

/* 
*	This is the search content module.
*	This page is included by index.php.
*	This page expects to receive $_GET['terms'].
*/

// Redirect if this page was accessed directly:
if (!defined('BASE_URL')) {

// Need the BASE_URL, defined in the config file:
require_once ('../includes/config.inc.php');

// Redirect to the index page:
$url = BASE_URL . 'index.php?p=search';

// Pass along search terms?
if (isset($_GET['terms'])) {
	$url .= '&terms=' . urlencode($_GET['terms']);
}

header ("Location: $url");
exit;

} // End of defined() IF.

// Print a caption:
echo '<h2>Search Results</h2>';

// Display the search results if the form
// has been submitted.
if (isset($_GET['terms']) && ($_GET['terms'] != 'Search...') ) {

$terms = $_GET['terms'];
$dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME) or die *('Error connecting to MySQL server');
// Query the database.
$query = "SELECT * FROM product WHERE title LIKE '%$terms%'";

// Fetch the results.
//$row = mysqli_fetch_array($result);

// Print the results:

	$result=mysqli_query($dbc,$query);

	if ($result == false){
	  echo "<h3>Sorry,</h3>";
	  echo "<p>your search: "" .$terms. "" returned zero results</p>";
	}

	while($row=mysqli_fetch_assoc($result)) {

			$output[] = '<ul>';
			$output[] = '<li>'.$row['title'] .': £'.$row['price'].'<br /><img src="'.$row['img'].'" alt="'.$row['title'].'" /></li>';
			$output[] = '</ul>';
	}
	echo join('',$output);
}

else { // Tell them to use the search form.
echo '<p class="error">Please use the search form at the top of the window to search this site.</p>';
}	

?>

jordanmoore · March 10, 2011

It looks like you didn't create the output array before you started using it. Try this:

<?php 
require_once('inc/global.inc.php');

# search.inc.php

/* 
*	This is the search content module.
*	This page is included by index.php.
*	This page expects to receive $_GET['terms'].
*/

// Redirect if this page was accessed directly:
if (!defined('BASE_URL')) {

// Need the BASE_URL, defined in the config file:
require_once ('../includes/config.inc.php');

// Redirect to the index page:
$url = BASE_URL . 'index.php?p=search';

// Pass along search terms?
if (isset($_GET['terms'])) {
	$url .= '&terms=' . urlencode($_GET['terms']);
}

header ("Location: $url");
exit;

} // End of defined() IF.

// Print a caption:
echo '<h2>Search Results</h2>';

// Display the search results if the form
// has been submitted.
if (isset($_GET['terms']) && ($_GET['terms'] != 'Search...') ) {

$terms = $_GET['terms'];
$dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME) or die *('Error connecting to MySQL server');
// Query the database.
$query = "SELECT * FROM product WHERE title LIKE '%$terms%'";

// Fetch the results.
//$row = mysqli_fetch_array($result);

// Print the results:

	$result=mysqli_query($dbc,$query);

	if ($result === false){
	  echo "<h3>Sorry,</h3>";
	  echo "<p>your search: "" .$terms. "" returned zero results</p>";
	}

	$output = Array();
	while($row=mysqli_fetch_assoc($result)) {

			$output[] = '<ul>';
			$output[] = '<li>'.$row['title'] .': £'.$row['price'].'<br /><img src="'.$row['img'].'" alt="'.$row['title'].'" /></li>';
			$output[] = '</ul>';
	}
	echo join('',$output);
}

else { // Tell them to use the search form.
echo '<p class="error">Please use the search form at the top of the window to search this site.</p>';
}	

?>

anevins · March 10, 2011

Brilliant, thank you, I'm almost there.

I'm still getting a blank page where there should be "Sorry, your search ...".

Have I positioned this if statement in the wrong place?

if ($result == false){
	  echo "<h3>Sorry,</h3>";
	  echo "<p>your search: "" .$terms. "" returned zero results</p>";
	}

jordanmoore · March 10, 2011

Are you using the three equals signs - "===" - like I suggested or just the two - "==" - like I saw in your code snippet?

If you're using just the two then try replacing "false" with "null".

However if you use the three then you should be able to use "0", "false" or "null".

anevins · March 10, 2011

I am sorry, I missed out that.

Not to worry, here's the new if statement:

	if (mysqli_num_rows($data) === 0) {

		mysqli_query($dbc, $query);
		echo "Thank you, your report has been received.";

		}

Okay I've still got the blank page

jordanmoore · March 10, 2011

Right, I've got a final idea on this - but unfortunately I'm not very good at php mySql related queries. I've looked at the php manual and your query should be returning false.

Here is the code I think may work for you:

<?php 
require_once('inc/global.inc.php');

# search.inc.php

/* 
*	This is the search content module.
*	This page is included by index.php.
*	This page expects to receive $_GET['terms'].
*/

// Redirect if this page was accessed directly:
if (!defined('BASE_URL')) {

// Need the BASE_URL, defined in the config file:
require_once ('../includes/config.inc.php');

// Redirect to the index page:
$url = BASE_URL . 'index.php?p=search';

// Pass along search terms?
if (isset($_GET['terms'])) {
	$url .= '&terms=' . urlencode($_GET['terms']);
}

header ("Location: $url");
exit;

} // End of defined() IF.

// Print a caption:
echo '<h2>Search Results</h2>';

// Display the search results if the form
// has been submitted.
if (isset($_GET['terms']) && ($_GET['terms'] != 'Search...') ) {

$terms = $_GET['terms'];
$dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME) or die *('Error connecting to MySQL server');
// Query the database.
$query = "SELECT * FROM product WHERE title LIKE '%$terms%'";

// Fetch the results.
//$row = mysqli_fetch_array($result);

// Print the results:

	if($result=mysqli_query($dbc,$query)){
			$output = Array();
			while($row=mysqli_fetch_assoc($result)) {

					$output[] = '<ul>';
					$output[] = '<li>'.$row['title'] .': £'.$row['price'].'<br /><img src="'.$row['img'].'" alt="'.$row['title'].'" /></li>';
					$output[] = '</ul>';
			}
			echo join('',$output);
	} else {
			echo "<h3>Sorry,</h3>";
			echo "<p>your search: "" .$terms. "" returned zero results</p>";
	}

}

else { // Tell them to use the search form.
echo '<p class="error">Please use the search form at the top of the window to search this site.</p>';
}	

?>

If this does not work then I'm not quite sure what you could do to fix it.

You may try tracing the result variable to see the contents.

I hope you're able to get this sorted.

anevins · March 10, 2011

Thank you for kindly spending your time helping me out.

Unfortunately this hasn't worked and I still receive a blank results page instead of the desired feedback.

All comments are welcome.

Thanks.

anevins · March 10, 2011

jordanmoore · March 10, 2011

Well I'm back again with another idea, try using this script:

<?php 
require_once('inc/global.inc.php');

# search.inc.php

/* 
*	This is the search content module.
*	This page is included by index.php.
*	This page expects to receive $_GET['terms'].
*/

// Redirect if this page was accessed directly:
if (!defined('BASE_URL')) {

// Need the BASE_URL, defined in the config file:
require_once ('../includes/config.inc.php');

// Redirect to the index page:
$url = BASE_URL . 'index.php?p=search';

// Pass along search terms?
if (isset($_GET['terms'])) {
	$url .= '&terms=' . urlencode($_GET['terms']);
}

header ("Location: $url");
exit;

} // End of defined() IF.

// Print a caption:
echo '<h2>Search Results</h2>';

// Display the search results if the form
// has been submitted.
if (isset($_GET['terms']) && ($_GET['terms'] != 'Search...') ) {

$terms = $_GET['terms'];
$dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME) or die *('Error connecting to MySQL server');
// Query the database.
$query = "SELECT * FROM product WHERE title LIKE '%$terms%'";
// Fetch the results.
//$row = mysqli_fetch_array($result);
// Print the results:
$result=mysqli_query($dbc,$query);	
if (!$result){
	echo "<h3>Sorry,</h3>";
	echo "<p>your search: "" .$terms. "" returned zero results</p>";
} else {		
	$output = Array();
	while($row=mysqli_fetch_assoc($result)) {
		$output[] = '<ul>';
		$output[] = '<li>'.$row['title'] .': £'.$row['price'].'<br /><img src="'.$row['img'].'" alt="'.$row['title'].'" /></li>';
		$output[] = '</ul>';
	}
	echo join('',$output);
}
} else { // Tell them to use the search form.
echo '<p class="error">Please use the search form at the top of the window to search this site.</p>';
}	

?>

anevins · March 10, 2011

Welcome back

I've tried that script and I receive the same results; the same blank page

jordanmoore · March 10, 2011

Have you tried printing the "$result" variable to see what content it holds?

Also, you could try placing several traces over the script, just as simple as something like echo "1"; - where you increment the number.

This will give you a good idea of where the code is going.

anevins · March 10, 2011

If it's possible, I'll come back to this thread tomorrow as I have to sleep now,

Thanks for your help.

anevins · March 11, 2011

Okay I'm back,

I've outputted $result and it gave me this error:

Object of class mysqli_result could not be converted to string

anevins · March 11, 2011

Forgive me if I'm late to reply, I'll try and visit these threads in my timetable intervals between lectures.

anevins · March 11, 2011

I want to use the num rows mysqli function so, if there are results greater than 0, do the query, else output 'no results etc.'

I don't know how to implement this through my code, could anyone help me out here?

<?php 
  require_once('./includes/connectvars.php');

# search.inc.php

/* 
*	This is the search content module.
*	This page is included by index.php.
*	This page expects to receive $_GET['terms'].
*/

// Redirect if this page was accessed directly:
if (!defined('BASE_URL')) {

// Need the BASE_URL, defined in the config file:
require_once ('../includes/config.inc.php');

// Redirect to the index page:
$url = BASE_URL . 'index.php?p=search';

// Pass along search terms?
if (isset($_GET['terms'])) {
	$url .= '&terms=' . urlencode($_GET['terms']);
}

header ("Location: $url");
exit;

} // End of defined() IF.

// Print a caption:
echo '<h2>Search Results</h2>';

// Display the search results if the form
// has been submitted.
if (isset($_GET['terms']) && ($_GET['terms'] != 'Search...') ) {

$terms = $_GET['terms'];
$dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME) or die *('Error connecting to MySQL server');
// Query the database.
$query = "SELECT * FROM product WHERE title LIKE '%$terms%'";
// Fetch the results.
//$row = mysqli_fetch_array($result);
// Print the results:
$result=mysqli_query($dbc,$query);	
if (!$result){
	echo "<h3>Sorry,</h3>";
	echo "<p>your search: "" .$terms. "" returned zero results</p>";
} else {		
	$output = Array();
	while($row=mysqli_fetch_assoc($result)) {
		$output[] = '<ul>';
		$output[] = '<li>'.$row['title'] .': £'.$row['price'].'<br /><img src="'.$row['img'].'" alt="'.$row['title'].'" /></li>';
		$output[] = '</ul>';
	}
	echo join('',$output);
}
} else { // Tell them to use the search form.
echo '<p class="error">Please use the search form at the top of the window to search this site.</p>';
}	

?>

anevins · March 11, 2011

I'm trying to output a message when there are no results for the search,

this is my code:

<?php 
  require_once('./includes/connectvars.php');

# search.inc.php

/* 
*	This is the search content module.
*	This page is included by index.php.
*	This page expects to receive $_GET['terms'].
*/

// Redirect if this page was accessed directly:
if (!defined('BASE_URL')) {

// Need the BASE_URL, defined in the config file:
require_once ('../includes/config.inc.php');

// Redirect to the index page:
$url = BASE_URL . 'index.php?p=search';

// Pass along search terms?
if (isset($_GET['terms'])) {
	$url .= '&terms=' . urlencode($_GET['terms']);
}

header ("Location: $url");
exit;

} // End of defined() IF.

// Print a caption:
echo '<h2>Search Results</h2>';

// Display the search results if the form
// has been submitted.
if (isset($_GET['terms']) && ($_GET['terms'] != 'Search...') ) {

$terms = $_GET['terms'];
$dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME) or die *('Error connecting to MySQL server');
// Query the database.
$query = "SELECT * FROM product WHERE title LIKE '%$terms%'";
// Fetch the results.
$result=mysqli_query($dbc,$query);	
// Print the results:
$num_rows = mysql_num_rows($result);

	if ($num_rows > 0){

		$output = Array();
		$output[] = '<ul>';
		$output[] = '<li>'.$row['title'] .': £'.$row['price'].'<br /><img src="'.$row['img'].'" alt="'.$row['title'].'" /></li>';
		$output[] = '</ul>';

		echo join('',$output);
	}

	else {
		echo "<h3>Sorry,</h3>";
		echo "<p>your search: "" .$terms. "" returned zero results</p>";
	}

} 

else { // Tell them to use the search form.
echo '<p class="error">Please use the search form at the top of the window to search this site.</p>';
}	

?>

I think there's some conflict with the mysql and mysqli funcitons, got any ideas anyone?

anevins · March 11, 2011

Thanks for all your help everyone,

I have finished with the search as it is completed.

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