Good evening, I am currently doing a web application which requires pulling out of data from the database. I am still a novice in the programming industry, and is still seeking help from my colleagues and of course forum sites like phpdn. I have an existing code which my friend provided me. I have already done some modifications with the code. I have a problem though with the code, it executes database query upon loading of the page. I do understand how the code works, however, I am not able to modify the code to disallow the execution of query upon loading of page. Here is the code: <?PHP include("dbconnection.php"); $query = "SELECT * FROM records"; if(isset($_POST["btnSearch"])) { $query .= " WHERE last_name LIKE '%".$_POST["search"]."%' OR first_name LIKE '%".$_POST["search"]."%'OR territory LIKE '%".$_POST["search"]."%'OR job_title LIKE '%".$_POST["search"]."%'OR title LIKE '%".$_POST["search"]."%'OR employer LIKE '%".$_POST["search"]."%' " ; } $result = mysql_query($query, $connection) or die(mysql_error()); ?> PHP: I do know that this php code, the way it is written, is supposed to do that - to select data from my database (This code was provided by a friend). But my requirement for the project is actually to give it a search engine and display the information based from the search query. I have a search engine already together with the code, and it works pretty well. What I must do is to disallow the pulling of data from the first load, but just pull data if the search engine is used. Here's the whole code: <link href="add_client.css" rel="stylesheet" type="text/css"> <?PHP include("dbconnection.php"); $query = "SELECT * FROM records"; if(isset($_POST["btnSearch"])) { $query .= " WHERE last_name LIKE '%".$_POST["search"]."%' OR first_name LIKE '%".$_POST["search"]."%'OR territory LIKE '%".$_POST["search"]."%'OR job_title LIKE '%".$_POST["search"]."%'OR title LIKE '%".$_POST["search"]."%'OR employer LIKE '%".$_POST["search"]."%' " ; } $result = mysql_query($query, $connection) or die(mysql_error()); ?> <table width="760" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td><table width="760" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="199" align="center" valign="top"><a href="login.html"><img src="asia.gif" alt="" width="152" height="58" border="0" /></a> <script type="text/javascript" src="menu.js"></script></td> <td width="176" align="right" valign="bottom"><a href="main.php"><img src="Home.jpg" width="104" height="20" border="0"/></a></td> <td width="130" align="right" valign="bottom"><img src="View.jpg" width="104" height="20" border="0"/></td> <td width="146" align="right" valign="bottom"><a href="add_client.php"><img src="Add.jpg" width="104" height="20" border="0"/></a></td> <td width="109" align="right" valign="bottom"> </td> </tr> </table></td> </tr> <tr> <td><table width="760" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="200" height="3" bgcolor="#1B1C78"><img src="images/topspacerblue.gif" alt="" width="1" height="3" /></td> <td width="560" bgcolor="#0076CC"><img src="images/topspacerlblue.gif" alt="" width="1" height="3" /></td> </tr> </table></td> </tr> <tr> <td height="553" align="center" valign="top" bgcolor="#F3FAFE"><br /> <form name="form" action="view_client.php" method="post"> <table width="351" border="0"> <tr> <td width="137" align="left" valign="middle">SEARCH RECORD:</td> <td width="144" align="center" valign="middle"><input type="text" name="search" /></td> <td width="56" align="left" valign="middle"><input type="submit" name="btnSearch" value="Search" /></td> </tr> </table> <br /> <table width="680" border="0" cellpadding="3" cellspacing="1" bordercolor="38619E" > <tr> <th width="100" align="center" bgcolor="#E0E8F3">Territory</th> <th width="110" align="center" bgcolor="#E0E8F3">Employer</th> <th width="110" align="center" bgcolor="#E0E8F3">Job Title</th> <th width="50" align="center" bgcolor="#E0E8F3">Title</th> <th width="110" align="center" bgcolor="#E0E8F3">First Name</th> <th width="110" align="center" bgcolor="#E0E8F3">Last Name</th> <th width="70" align="center" valign="middle" bgcolor="#E0E8F3"> </th> </tr> <?php if($result) { for($i=0; $i<mysql_num_rows($result); $i++) { $id = trim(mysql_result($result, $i, "id")); $territory = trim(mysql_result($result, $i, "territory")); $employer = trim(mysql_result($result, $i, "employer")); $job_title = trim(mysql_result($result, $i, "job_title")); $title = trim(mysql_result($result, $i, "title")); $first_name = trim(mysql_result($result, $i, "first_name")); $last_name = trim(mysql_result($result, $i, "last_name")); echo "<tr>"; echo "<td>".$territory."</td>"; echo "<td>".$employer."</td>"; echo "<td>".$job_title."</td>"; echo "<td>".$title."</td>"; echo "<td>".$first_name."</td>"; echo "<td>".$last_name."</td>"; echo "<td><a href='admin_edit.php?id=".$id."'>edit</a> | <a href='admin_delete.php?id=".$id."'>del</a> </td>"; echo "</tr>"; } } ?> </table> <br /> </form> <p> </p></td> </tr> <tr> <td height="38"><table width="760" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="200" height="35" align="center" bgcolor="#1B1C78" class=white><img src="images/topspacerblue.gif" alt="" width="1" height="3" /> <a href="disclaimer.html"><font color="#FFFFFF">Legal Disclaimer</font></a> </td> <td width="560" align="center" bgcolor="#0076CC" class=white><img src="images/topspacerlblue.gif" alt="" width="1" height="3" /> Copyright © 2006 - 2010 Limited. All rights reserved. </td> </tr> </table></td> </tr> </table> PHP: Immediate response is well appreciated. Thank you very much!
Immediate response: If the length of the search query is 0, do not run the query. I'll leave out how to implement that so you can attempt to figure it out (tip: It's barely 1 line of code).
Try this... <link href="add_client.css" rel="stylesheet" type="text/css"> <?PHP include("dbconnection.php"); $query = "SELECT * FROM records"; if(isset($_POST["btnSearch"]) && !empty( $_POST['search'] ) ) { $query .= " WHERE last_name LIKE '%".$_POST["search"]."%' OR first_name LIKE '%".$_POST["search"]."%'OR territory LIKE '%".$_POST["search"]."%'OR job_title LIKE '%".$_POST["search"]."%'OR title LIKE '%".$_POST["search"]."%'OR employer LIKE '%".$_POST["search"]."%' " ; } $result = mysql_query($query, $connection) or die(mysql_error()); ?> <table width="760" border="0" align="center" cellpadding="0" cellspacing="0"> <tr> <td><table width="760" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="199" align="center" valign="top"><a href="login.html"><img src="asia.gif" alt="" width="152" height="58" border="0" /></a> <script type="text/javascript" src="menu.js"></script></td> <td width="176" align="right" valign="bottom"><a href="main.php"><img src="Home.jpg" width="104" height="20" border="0"/></a></td> <td width="130" align="right" valign="bottom"><img src="View.jpg" width="104" height="20" border="0"/></td> <td width="146" align="right" valign="bottom"><a href="add_client.php"><img src="Add.jpg" width="104" height="20" border="0"/></a></td> <td width="109" align="right" valign="bottom"> </td> </tr> </table></td> </tr> <tr> <td><table width="760" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="200" height="3" bgcolor="#1B1C78"><img src="images/topspacerblue.gif" alt="" width="1" height="3" /></td> <td width="560" bgcolor="#0076CC"><img src="images/topspacerlblue.gif" alt="" width="1" height="3" /></td> </tr> </table></td> </tr> <tr> <td height="553" align="center" valign="top" bgcolor="#F3FAFE"><br /> <form name="form" action="view_client.php" method="post"> <table width="351" border="0"> <tr> <td width="137" align="left" valign="middle">SEARCH RECORD:</td> <td width="144" align="center" valign="middle"><input type="text" name="search" /></td> <td width="56" align="left" valign="middle"><input type="submit" name="btnSearch" value="Search" /></td> </tr> </table> <br /> <table width="680" border="0" cellpadding="3" cellspacing="1" bordercolor="38619E" > <tr> <th width="100" align="center" bgcolor="#E0E8F3">Territory</th> <th width="110" align="center" bgcolor="#E0E8F3">Employer</th> <th width="110" align="center" bgcolor="#E0E8F3">Job Title</th> <th width="50" align="center" bgcolor="#E0E8F3">Title</th> <th width="110" align="center" bgcolor="#E0E8F3">First Name</th> <th width="110" align="center" bgcolor="#E0E8F3">Last Name</th> <th width="70" align="center" valign="middle" bgcolor="#E0E8F3"> </th> </tr> <?php if($result) { for($i=0; $i<mysql_num_rows($result); $i++) { $id = trim(mysql_result($result, $i, "id")); $territory = trim(mysql_result($result, $i, "territory")); $employer = trim(mysql_result($result, $i, "employer")); $job_title = trim(mysql_result($result, $i, "job_title")); $title = trim(mysql_result($result, $i, "title")); $first_name = trim(mysql_result($result, $i, "first_name")); $last_name = trim(mysql_result($result, $i, "last_name")); echo "<tr>"; echo "<td>".$territory."</td>"; echo "<td>".$employer."</td>"; echo "<td>".$job_title."</td>"; echo "<td>".$title."</td>"; echo "<td>".$first_name."</td>"; echo "<td>".$last_name."</td>"; echo "<td><a href='admin_edit.php?id=".$id."'>edit</a> | <a href='admin_delete.php?id=".$id."'>del</a> </td>"; echo "</tr>"; } } ?> </table> <br /> </form> <p> </p></td> </tr> <tr> <td height="38"><table width="760" border="0" cellpadding="0" cellspacing="0"> <tr> <td width="200" height="35" align="center" bgcolor="#1B1C78" class=white><img src="images/topspacerblue.gif" alt="" width="1" height="3" /> <a href="disclaimer.html"><font color="#FFFFFF">Legal Disclaimer</font></a> </td> <td width="560" align="center" bgcolor="#0076CC" class=white><img src="images/topspacerlblue.gif" alt="" width="1" height="3" /> Copyright © 2006 - 2010 Limited. All rights reserved. </td> </tr> </table></td> </tr> </table> PHP: