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06.26.2008 at 04:40PM PDT, ID: 23520220
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8.2

Searching MySQL field for multiple keywords

Asked by prbrowne in MySQL Server, PHP Scripting Language, SQL Query Syntax

Tags:

Hi

I have Flash application where the user can type in a question and it returns a path to a video which is then played.  The MySQL database has two tables, patient_1_question and patient_1_answer.  The answer table is comprised of two fields; answer_id and answer_path (which contains rows for relative paths to a number of videos).  The question table is comprised of three fields; question_id, answer_id (foreign key to the answer table rows) and terms.  Terms contains keywords which if matched retrieves the corresponding path to a video from the answer table through a SQL query - see code snippet.  This works fine when there is a match for a single word in the terms field, but where there are keywords which are the same in multiple rows, the query does not work.  

What I want to do is match multiple keywords contained in the string sent to the PHP file by Flash (contained in the variable $question in the PHP below).  I gather from some research that I need to explode the string and do some sort of loop, but I am not sure how to do this with the current script.  What I would really like is for some kind and knowledgable person to modify the PHP script for me!!

Thanks for any help!

Cheers,

Peter



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<?php 
require_once('../../connection/nps.php'); 
 
mysql_select_db($database, $connection);
 
$question = $_POST['question'];
 
$query = "SELECT patient_1_answer.answer_path FROM patient_1_question,patient_1_answer WHERE patient_1_question.answer_id=patient_1_answer.answer_id AND MATCH (patient_1_question.terms) AGAINST ('%$question%')";
 
$result = mysql_query($query, $connection) or die(mysql_error());
 
$num_rows = mysql_num_rows($result); 
 
if ($num_rows == 1) {
$counter = 0;
 
while($row = mysql_fetch_array($result)){ 
echo "answer$counter=$row[answer_path]&";
$counter++;
}
echo "counter=$counter"; 
} 
 
elseif ($num_rows > 1){
 
echo "counter=$num_rows";
} 
 
elseif ($num_rows == 0){
echo "counter=0"; 
}
?>
[+][-]06.26.2008 at 09:07PM PDT, ID: 21880918

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[+][-]06.26.2008 at 09:15PM PDT, ID: 21880937

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[+][-]06.26.2008 at 09:16PM PDT, ID: 21880944

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[+][-]06.26.2008 at 09:28PM PDT, ID: 21880987

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[+][-]06.26.2008 at 11:20PM PDT, ID: 21881293

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About this solution

Zones: MySQL Server, PHP Scripting Language, SQL Query Syntax
Tags: PHP, MySQL, ActionScript
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Solution Provided By: prbrowne
Participating Experts: 1
Solution Grade: A
 
 
 
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