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    <p>You aren't checking the return from <a href="http://au2.php.net/manual/en/function.mysql-query.php" rel="nofollow">mysql_query</a>, which returns false on error.</p> <p>You should check the return value, then check the error given:</p> <pre><code>if ($result === false) { //die is ok to use in development, //use something you can handle the error with in production. die(mysql_error()); } </code></pre> <p>The error in your query is you are using <code>&amp;&amp;</code> and not <code>AND</code> which is expected by MySQL.</p> <p><strong>Note:</strong> Assuming you have not hidden notices, you should see:</p> <blockquote> <p>Warning: mysql_fetch_array() expects parameter 1 to be resource, boolean given</p> </blockquote> <p>Its best to develop with all <a href="http://au2.php.net/manual/en/function.error-reporting.php" rel="nofollow"><code>error_reporting</code></a> on <code>E_ALL</code>, so you can see any notices/warning that may be causing you errors.</p> <hr> <p>Here is your query in more readable formatting:</p> <pre><code>SELECT registration.hosteladmissionno, registration.student_name, registration.semester, messexp.billmonth, messexp.billyear, messexp.wastagecharge, exp_amount.blockexp // Trying to select from a table not included in the FROM FROM registration, messexp, blockexp // I'm assuming you want exp_amount from this table. WHERE registration.mess_type = '".$q."' AND status_flag=1 // Changed to be using AND not &amp;&amp; </code></pre> <p>Did you mean to select <code>blockexp.exp_amount</code>?</p> <p>The way you current query is, its saying fetch the values in the exp_amount table in the column blockexp (which doesn't exist or hasn't been included anyway.)</p> <p>If you want all the fields from blockexp, use <code>blockexp.*</code></p> <hr> <p>The next issue you are going to have is you aren't specifying how these tables are joined at all. So I believe you are going to get every possible combination of rows.</p>
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    1. COhello jacob, thanks for your suggestion. I tried your method. Im getting this Error --> Unknown column 'exp_amount.blockexp' in 'field list'
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    2. COYeah exactly.. I had that Warning.. Thats what made me sick! now its gone and i have pasted you the error which i got by using your method.
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    3. CO@Dinzy you aren't selecting from a exp_amount table... So the field is unknown, just as the error says.
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