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PHP - Hw Does A Query Really Work In Php?
Can someone help me understand exactly how queries work in PHP?
Here is some code of mine... // Build query. $q2 = 'SELECT m.first_name, m.username, m.photo_name, m.photo_label, m.logged_in, m.last_activity, c.created_on, c.body, c.status FROM member AS m INNER JOIN comment AS c ON m.id = c.member_id WHERE c.status="Approved" AND c.article_id=? ORDER BY c.created_on'; // Prepare statement. $stmt2 = mysqli_prepare($dbc, $q2); // Bind variable to query. mysqli_stmt_bind_param($stmt2, 'i', $articleID); // Execute query. mysqli_stmt_execute($stmt2); // Store results. mysqli_stmt_store_result($stmt2); // Check # of Records Returned. if (mysqli_stmt_num_rows($stmt2)>=1){ // Comment(s) Found. $commentExists = TRUE; // Bind result-set to variables. mysqli_stmt_bind_result($stmt2, $firstName, $username, $photoName, $photoLabel, $loggedIn, $lastActivity, $createdOn, $comments, $status); }else{ // Comments Not Found. $commentExists = FALSE; }//End of FIND COMMENT RECORD Questions: 1.) When I run/execute that query what happens? Is the entire "Results Set" created? 2.) If so, where is it stored? 3.) What happens when I bind the results-set to variables? Does that actually assign values to the variables or just create a "link"? 4.) What happens here... while (mysqli_stmt_fetch($stmt2)){ Debbie Similar TutorialsIf you also have any feedback on my code, please do tell me. I wish to improve my coding base. Basically when you fill out the register form, it will check for data, then execute the insert query. But for some reason, the query will NOT insert into the database. In the following code below, I left out the field ID. Doesn't work with it anyways, and I'm not sure it makes a difference. Code: Code: [Select] mysql_query("INSERT INTO servers (username, password, name, type, description, ip, votes, beta) VALUES ($username, $password, $name, $server_type, $description, $ip, 0, 1)"); Full code: Code: [Select] <?php include_once("includes/config.php"); ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title><? $title; ?></title> <meta http-equiv="Content-Language" content="English" /> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <link rel="stylesheet" type="text/css" href="style.css" media="screen" /> </head> <body> <div id="wrap"> <div id="header"> <h1><? $title; ?></h1> <h2><? $description; ?></h2> </div> <? include_once("includes/navigation.php"); ?> <div id="content"> <div id="right"> <h2>Create</h2> <div id="artlicles"> <?php if(!$_SESSION['user']) { $username = mysql_real_escape_string($_POST['username']); $password = mysql_real_escape_string($_POST['password']); $name = mysql_real_escape_string($_POST['name']); $server_type = mysql_real_escape_string($_POST['type']); $description = mysql_real_escape_string($_POST['description']); if(!$username || !$password || !$server_type || !$description || !$name) { echo "Note: Descriptions allow HTML. Any abuse of this will result in an IP and account ban. No warnings!<br/>All forms are required to be filled out.<br><form action='create.php' method='POST'><table><tr><td>Username</td><td><input type='text' name='username'></td></tr><tr><td>Password</td><td><input type='password' name='password'></td></tr>"; echo "<tr><td>Sever Name</td><td><input type='text' name='name' maxlength='35'></td></tr><tr><td>Type of Server</td><td><select name='type'> <option value='Any'>Any</option> <option value='PvP'>PvP</option> <option value='Creative'>Creative</option> <option value='Survival'>Survival</option> <option value='Roleplay'>RolePlay</option> </select></td></tr> <tr><td>Description</td><td><textarea maxlength='1500' rows='18' cols='40' name='description'></textarea></td></tr>"; echo "<tr><td>Submit</td><td><input type='submit'></td></tr></table></form>"; } elseif(strlen($password) < 8) { echo "Password needs to be higher than 8 characters!"; } elseif(strlen($username) > 13) { echo "Username can't be greater than 13 characters!"; } else { $check1 = mysql_query("SELECT username,name FROM servers WHERE username = '$username' OR name = '$name' LIMIT 1"); if(mysql_num_rows($check1) < 0) { echo "Sorry, there is already an account with this username and/or server name!"; } else { $ip = $_SERVER['REMOTE_ADDR']; mysql_query("INSERT INTO servers (username, password, name, type, description, ip, votes, beta) VALUES ($username, $password, $name, $server_type, $description, $ip, 0, 1)"); echo "Server has been succesfully created!"; } } } else { echo "You are currently logged in!"; } ?> </div> </div> <div style="clear: both;"> </div> </div> <div id="footer"> <a href="http://www.templatesold.com/" target="_blank">Website Templates</a> by <a href="http://www.free-css-templates.com/" target="_blank">Free CSS Templates</a> - Site Copyright MCTop </div> </div> </body> </html> Hey, $todo_upgrades_sql = "SELECT * FROM todo_upgrades WHERE time_completion >= $time"; $todo_upgrades_res = mysql_query($todo_upgrades_sql) or die (mysql_error()); results: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 Hi guys can any one see hy tis won't work <?php require_once 'login.php'; $db_server = mysql_connect($db_hostname, $db_username, $db_password); if (!$db_server) { die ("Unabl to connect to MySQL" . mysql_error()); } mysql_select_db($db_database, $db_server) or die("Unable to connect to database: " . mysql_error()); if (isset($_POST['author'])&& isset($_POST['title'])&& isset($_POST['category'])&& isset($_POST['year'])&& isset($_POST['isbn'])) { $author = get_post('author'); $title = get_post('title'); $category = get_post('category'); $year = get_post('year'); $isbn = get_post('isbn'); if (isset($_POST['delete']) && $isbn != "") { $query = "DELETE FROM tblCLassics WHERE isbn='$isbn'"; if (!mysql_query($query, $db_server)) { echo "DELETE failed: $query<br />" . mysql_error() . "<br /><br />"; } } else { $query = "INSERT INTO tblClassics VALUES" . "('$author','$title','$category','$year','$isbn')"; if (!mysql_query($query, $db_server)) { echo "INSERT Failed: $query<br />" . mysql_error() . "<br /><br />"; } } } echo <<<_END <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Welcome to the Book Club</title> </head> <body> <form action="connectionTest.php" method="post"><pre> Author: <input type="text" name="author" /> Title: <input type="text" name="title" /> Category: <input type="text" name="category" /> Year: <input type="text" name="year" /> ISBN: <input type="text" name="isbn" /> <input type="submit" value="ADD RECORD" /></pre> </form> _END; $query = "SELECT * FROM tblClassics"; $results = mysql_query($query); if (!$results) { die("Database access failed: " . mysql_error()); } $rows = mysql_num_rows($results); for ($j = 0; $j < $rows ; ++$j) { $row = mysql_fetch_row($results); echo <<<_END <pre> Author: $row[0] Title: $row[1] Category: $row[2] Year: $row[3] ISBN: $row[4] </pre> <form action="connectionTest.php" method="post"> <input type="hidden" name="delete" value="yes" /> <input type="hidden" name="isbn" value="$row[4]" /> <input type="submit" value="DELETE RECORD" /> </form> _END; } echo "</body>"; echo "</html>"; mysql_close($db_server); function get_post($var) { return mysql_real_escape_string($_POST[$var]); } ?> cheers. Another issue with trying to work on somebody else's script (and on no sleep!) I've got this mess of a page I'm trying to manipulate to add a feature to. When somebody goes to this page, it pulls all records. At the top, I added a way to refine the results by dates. That query works fine, I tested it in mysql. To avoid fighting with the original code, I created an if statement to create $query_selectAll. But when I put it in the page, it would just refresh with the same data. I echoed the query to make sure it is correct. Then I realized that there was another query, $query_selectAllItems, further down the page that was generating the results, and none of what I was doing made a difference. But I'm not sure why it's ignoring my query or how to work around this. I tried deleting the query $query_selectAllItems, thinking it would take mine, because it ends with the same: $result_all $result_all = mysql_query($query_selectall); or $result_all = mysql_query($query_selectAllItems); Code: [Select] <?php require_once('calendar/classes/tc_calendar.php'); include("include/auth.php"); include("include/conn.php"); @$a_row = mysql_fetch_array($result); // I added this if statement in to get my POST results, without having to make changes to the GET results he made. if (isset($_POST['view'])){ $view=$_POST['view']; } else { $view=$_GET['view']; } if ($view=="All") { $query_selectall = 'select * from tbl_registration'; echo $query_selectall; } elseif ($view=="dated") { $mydate = isset($_REQUEST["date5"]) ? $_REQUEST["date5"] : ""; $end_date = isset($_REQUEST["date6"]) ? $_REQUEST["date6"] : ""; $query_selectall = "SELECT * FROM tbl_registration WHERE reg_timestamped BETWEEN STR_TO_DATE('$mydate', '%Y-%m-%d') AND STR_TO_DATE('$end_date' , '%Y-%m-%d')"; echo $query_selectall; } else { $query_selectall = "select * from tbl_registration where category='$view'"; echo $query_selectall; } $result_all = mysql_query($query_selectall); @$numRows_all = mysql_num_rows($result_all); ?> <title>WYF Admin</title> <html> <head> <script language="javascript" src="calendar/calendar.js"></script> <link href="include/styles.css" rel="stylesheet" type="text/css"> <SCRIPT language="JavaScript"> <!-- function confirm_delete(idval) { var verify= confirm("Do you really want to delete this Registration?"); if (verify== true) { window.location="delete_registrations.php?action=delete&did=" + idval; } } //--> </SCRIPT> <script type="text/javascript" src="js/jquery-latest.js"></script> <script type="text/javascript" src="js/jquery.tablesorter.js"></script> <script type="text/javascript"> $(function() { $("table").tablesorter({debug: true}); }); </script> </head> <body leftmargin="0" rightmargin="0" bottommargin="0" topmargin="0" cellspacing="0" cellpadding="0" bgcolor="ffffff"> <table width="100%"><tr><td align="left"><img src="images/logo.jpg"></td></tr> <tr><td><hr></td></tr> </table> <table><tr><td valign="top"> <table cellspacing="1" cellpadding="0" bgcolor="#cccccc" border="0" width="300"> <tr><td> <table cellspacing="0" cellpadding="0" width="300" height="400" bgcolor="#ffffff" border="0"> <tr><td align="left" valign="top"> <table width="250"><tr><td valign="top"> <b>Welcome </b><br><br> <?php //$query_selectAllItems = "SELECT *, DATE_FORMAT(workshop_date, '%e-%m-%Y') as 'my_date' FROM tbl_workshops"; $query_selectAllItems = "SELECT * FROM tbl_registration"; $result_all = mysql_query($query_selectAllItems); $numRows_all = mysql_num_rows($result_all); ?> <? include "include/nav.php"; ?> </td></tr></table></center> </td></tr> <tr><td></td></tr></table></tr></td></table> </td><td valign="top"> <div style="float:left;padding-right:40px;"><a href="getcsv.php">export to csv</a></div><div> <div style="float:right;margin-right:100px;"><form name="form1" method="post" action="viewregistrations2.php"><div style="float:left;overflow:visible;padding-right:10px;">View between</div> <div style="float:left;overflow:visible;padding-right:10px;"> <?php $myCalendar = new tc_calendar("date5", true, false); $myCalendar->setIcon("calendar/images/iconCalendar.gif"); $myCalendar->setDate(date('d'), date('m'), date('Y')); $myCalendar->setPath("calendar/"); $myCalendar->setYearInterval(2000, 2015); $myCalendar->dateAllow('2008-05-13', '2015-03-01'); $myCalendar->setDateFormat('j F Y'); $myCalendar->setAlignment('left', 'bottom'); $myCalendar->setSpecificDate(array("2011-04-01", "2011-04-04", "2011-12-25"), 0, 'year'); $myCalendar->setSpecificDate(array("2011-04-10", "2011-04-14"), 0, 'month'); $myCalendar->setSpecificDate(array("2011-06-01"), 0, ''); $myCalendar->writeScript(); ?> </div> <div style="float:left;overflow:visible;padding-right:10px;"> and </div> <div style="float:left;overflow:visible;padding-right:10px;"> <?php $myCalendar = new tc_calendar("date6", true, false); $myCalendar->setIcon("calendar/images/iconCalendar.gif"); $myCalendar->setDate(date('d'), date('m'), date('Y')); $myCalendar->setPath("calendar/"); $myCalendar->setYearInterval(2000, 2015); $myCalendar->dateAllow('2008-05-13', '2015-03-01'); $myCalendar->setDateFormat('j F Y'); $myCalendar->setAlignment('left', 'bottom'); $myCalendar->setSpecificDate(array("2011-04-01", "2011-04-04", "2011-12-25"), 0, 'year'); $myCalendar->setSpecificDate(array("2011-04-10", "2011-04-14"), 0, 'month'); $myCalendar->setSpecificDate(array("2011-06-01"), 0, ''); $myCalendar->writeScript(); ?> </div> <div style="float:left;overflow:visible;padding-right:10px;"><input type="hidden" name="view" id="view" value="dated"><input type="submit" value="go!"> </div></form> </div><br><br><br><br> <table width="95%" border="1" cellpadding="3" cellspacing="1" bordercolor="#999999" id="rowspan" class="tablesorter" name="table"><thead> <tr bgcolor="#ffffff"> <th width="125">Name</th> <th width="125">Address</th> <th width="125">Phone</th> <th width="125">Email</th> <th width="125">Workshop</th> <td width="50"> </td> <td width="50"> </td><td> </td> </tr></thead> <tbody> <? //output each row while ($c_row = mysql_fetch_array($result_all)){ ?> <tr> <td><?= $c_row['reg_fname'] ?> <?= $c_row['reg_lname'] ?></td> <td><?= $c_row['reg_address'] ?></td> <td><?= $c_row['reg_phone'] ?></td> <td><?= $c_row['reg_email'] ?></td> <td> <?php $catid = $c_row['reg_workshopid']; $query="SELECT * FROM tbl_workshops where workshop_id = '$catid'"; //Run query; $result=@mysql_query($query); $row=mysql_fetch_array($result); ?> <?php echo($row['workshop_title']); ?> </td> <td width="50" bgcolor="#DEE1EB"><div align="center"><a href="edit_registration.php?id=<? print $c_row['reg_id'] ?>">edit</a></div></td> <td width="50" bgcolor="#DEE1EB"><div align="center"><a href="javascript://" onClick="confirm_delete(<? print $c_row['reg_id'] ?>); return false">delete</a></div></td> <td width="50" bgcolor="#DEE1EB"><div align="center"><a href="printregistration.php?regid=<? print $c_row['reg_id'] ?>">view all / print</a></div></td> </tr> <? } //end while ?> </tbody> </table><br><br> </td></tr></table> Hi
Been trying to run a query to get all rows from a table between two dates, but nothing seems to work.
$query = "SELECT * FROM table WHERE date BETWEEN '%2014-11-17%' AND '%2014-11-18%'";
Strange thing if I try a search instead a query in phpmyadmin I don't see an operator called 'BETWEEN' on the remote host, but I do on my localhost.
Does this mean it will never work on the remote host? Nevertheless it doesn't work on either and I do have records for both dates in the table.
phpmyadmin:
Version 4.1.14 localhost (wamp) Version 3.3.7deb7 on remote server Thanks Code: [Select] <?php include_once("includes/config.php"); ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title><? $title; ?></title> <meta http-equiv="Content-Language" content="English" /> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <link rel="stylesheet" type="text/css" href="style.css" media="screen" /> </head> <body> <div id="wrap"> <div id="header"> <h1><? $title; ?></h1> <h2><? $description; ?></h2> </div> <? include_once("includes/navigation.php"); ?> <div id="content"> <div id="right"> <h2>Create</h2> <div id="artlicles"> <?php if(!$_SESSION['user']) { $username = $_POST['username']; $password = $_POST['password']; $name = $_POST['name']; $server_type = $_POST['type']; $description = $_POST['description']; if(!$username || !$password || !$server_type || !$description || !$name) { echo "Note: Descriptions allow HTML. Any abuse of this will result in an IP and account ban. No warnings! All forms are required to be filled out.<br><form action='create.php' method='POST'><table><tr><td>Username</td><td><input type='text' name='username'></td></tr><tr><td>Password</td><td><input type='password' name='password'></td></tr>"; echo "<tr><td>Sever Name</td><td><input type='text' name='name' maxlength='35'></td></tr><tr><td>Type of Server</td><td><select name='type'> <option value='Any'>Any</option> <option value='PvP'>PvP</option> <option value='Creative'>Creative</option> <option value='Survival'>Survival</option> <option value='Roleplay'>RolePlay</option> </select></td></tr> <tr><td>Description</td><td><textarea maxlength='1500' rows='18' cols='40'></textarea></td></tr>"; echo "<tr><td>Submit</td><td><input type='submit'></td></tr></table></form>"; } elseif(strlen($password) < 8) { echo "Password needs to be higher than 8 characters!"; } elseif(strlen($username) > 13) { echo "Username can't be greater than 13 characters!"; } else { $check1 = $db->prepare("SELECT username,name FROM servers WHERE username = ? OR name = ? LIMIT 1"); $check1->execute(array($username, $name)); if($check1->rowCount() > 0) { echo "Sorry, there is already an account with this username and/or server name!"; } else { $ip = $_SERVER['REMOTE_ADDR']; $insertQuery = $db->prepare("INSERT INTO servers (id, username, password, name, type, description, ip, votes, beta) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)"); $insertQuery->execute(array(null, $username, $password, $name, $server_type, $description, $ip, 0, 1)); if($insertQuery->errorInfo() > 0) { echo "Sorry, there was the following error:"; print_r($insertQuery->errorInfo()); } else { echo "Server has been succesfully created!"; } } } } else { echo "You are currently logged in!"; } ?> </div> </div> <div style="clear: both;"> </div> </div> <div id="footer"> <a href="http://www.templatesold.com/" target="_blank">Website Templates</a> by <a href="http://www.free-css-templates.com/" target="_blank">Free CSS Templates</a> - Site Copyright MCTop </div> </div> </body> </html> Whats wrong with that page? :/ Hi all, Perhaps, let me briefly explain what I would like to achieve. Currently I am using INNER JOIN command to link 4 sql tables 1) tutor_overall_level_subject.sql 2) tutor_subject_level.sql 3) tutor_level.sql 4) tutor_subject.sql In tutor_level.sql, there are 11 'level_id' level id 1 == Pre-School level id 2 == Lower Primary School level id 3 == Upper Primary School level id 4 == Lower Secondary etc.... As you can see from the code below, I am trying to retrieve 'lower primary' records only and place it in a table Subsequently, 'upper primary' records and place it in another table However when I executed the code, I receive a blank page. What could have gone wrong? Thanks if ($row3['level_id'] == 2){} if ($row3['level_id'] == 3){} Code: [Select] <?php //Retrieve Lower Primary if ($row3['level_id'] == 2) { echo'<table><tr>'; echo '<td class="label">Lower Primary</td>'; $count = 0; while($row3 = mysqli_fetch_array($data3)) { if ($count % 5 == 0) { echo "</tr><tr>"; $count = 0; } echo '<td>' . $row3['subject_name'] . '</td>'; $count++; } echo '</tr></table><br/>'; } //Upper Lower Primary if ($row3['level_id'] == 3) { echo'<table><tr>'; echo '<td class="label">Upper Primary</td>'; $count = 0; while($row3 = mysqli_fetch_array($data3)) { if ($count % 5 == 0) { echo "</tr><tr>"; $count = 0; } echo '<td>' . $row3['subject_name'] . '</td>'; $count++; } echo '</tr></table><br/>'; } ?> //This is my complete code Code: [Select] <?php $query3 = "SELECT sl.level_id, sl.subject_id, tl.level_name AS level_name, ts.subject_name AS subject_name " . "FROM tutor_overall_level_subject AS ols " . "INNER JOIN tutor_subject_level AS sl USING (subject_level_id) " . "INNER JOIN tutor_level AS tl USING (level_id) " . "INNER JOIN tutor_subject AS ts USING (subject_id) " . "WHERE ols.tutor_id = '" . $_GET['tutor_id'] . "'"; $data3 = mysqli_query($dbc, $query3) or die(mysqli_error($dbc)); if (mysqli_num_rows($data3) > 0) { echo '<div id="panel4">'; if ($row3['level_id'] == 2) { echo '<td class="label">Lower Primary</td>'; echo'<table><tr>'; $count = 0; while($row3 = mysqli_fetch_array($data3)) { if ($count % 5 == 0) { echo "</tr><tr>"; $count = 0; } echo '<td>' . $row3['subject_name'] . '</td>'; $count++; } echo '</tr></table><br/>'; } echo '</div>'; //End of panel 4 ?> This topic has been moved to MySQL Help. http://www.phpfreaks.com/forums/index.php?topic=321864.0 MySQL connection works and it connects to my database but it doesnt insert values into the table that I created. <form action="phplogin2.php" method="post"> Username: <input type="text" name="user" style="color: white; background-color: blue;"/><br/> Password: <input type="password" name="pass" style="color: grey; background-color: black;"/><br/> <button>Login</button> </form> <?php $con = mysql_connect('localhost', 'root', 'eagles1') or die("did not connect"); $dbc = mysql_select_db('mysql') or die("did not connect to database"); $query = mysql_query("INSERT INTO login VALUES('', '$user', '$pass')") or die("query did not work"); $user = $_POST['user']; $pass = $_POST['pass']; if ($con==true){ echo "MySQL Connection Succesful"; } if ($dbc==true){ echo "MySQL Database Connection Succesful"; } if ($query==true){ echo "MySQL Query Succesful"; } ?> I've got a table with 5 columns that shows appointments for Monday through Friday, but I'm using 5 separate queries, one for each column, for each corresponding day because i cannot figure out how to query the whole week and only put the appointments in the column they belong. Thank you for any help. This topic has been moved to MySQL Help. http://www.phpfreaks.com/forums/index.php?topic=308528.0 Server version: 5.1.53-log I have the following queries Code: [Select] SELECT user_id FROM phpbb_profile_fields_data WHERE pf_rsname = "Atroxide" LIMIT 1 SELECT user_id FROM phpbb_profile_fields_data WHERE pf_rsname = "Delia Smith" LIMIT 1 SELECT user_id FROM phpbb_profile_fields_data WHERE pf_rsname = "espinozagabe" LIMIT 1 SELECT user_id FROM phpbb_profile_fields_data WHERE pf_rsname = "Jaunty1" LIMIT 1 SELECT user_id FROM phpbb_profile_fields_data WHERE pf_rsname = "lvoos" LIMIT 1 All 5 of these queries are executed at a different time (in a foreach loop). All 5 except for the one below returned a result. Code: [Select] SELECT user_id FROM phpbb_profile_fields_data WHERE pf_rsname = "Delia Smith" LIMIT 1 I couldn't figure out why it wasn't working so I copy pasted it into PHPMyAdmin and it returned the result I was looking for. What could cause for PHPMyAdmin to work but not the exact same query in a php script to not? It didn't return an error using mysql_error() either. Pretty sure its irreverent but here is the php script. Code: [Select] foreach ($online as $username => $activity) { $query = " SELECT user_id FROM phpbb_profile_fields_data WHERE pf_rsname = \"" . $username . "\" LIMIT 1 "; $result = $db->query($query); } The table is Code: [Select] user_id mediumint(8) UNSIGNED No 0 pf_rsname varchar(255) utf8_bin Yes NULL Ok first of all i have this code at the final of my insert and update code.
if (!mysql_query($sql,$conn))
{
die('Error: ' . mysql_error($conn));
}
else{
header("Location: finalmsj.php?finalmsj=".$hiwu."");
}
mysql_close($conn);
}
Hi, this query runs fine when I run it from PHPMyAdmin: UPDATE `tran_term_taxonomy` SET `description` = (SELECT keyword from `good_keywords` ORDER BY RAND() LIMIT 1,1) WHERE `tran_term_taxonomy`.`taxonomy` = 'post_tag' AND `tran_term_taxonomy`.`description` = "" LIMIT 1 However, when I run the same query in a PHP file on my server, the page doesn't load at all. The message I get is: www.somesite.com is currently unable to handle this request. HTTP ERROR 500. This is my PHP code:
<?php
include("/database/connection/path/db_connect.php");
$result4 = mysqli_query($GLOBALS["___mysqli_ston"], "UPDATE `tran_term_taxonomy` SET `description` = (SELECT keyword from `good_keywords` ORDER BY RAND() LIMIT 1,1) WHERE `tran_term_taxonomy`.`taxonomy` = 'post_tag' AND `tran_term_taxonomy`.`description` = "" LIMIT 1");
echo $result4;
?>
So how do I make this query work please? Thanks for your guidance. I have created a registration page to access my website. After the user registrate himself should appear an alert saying that the registration was OK and a redirect to main.php page... however for some reason if I create an insert statement the alert and the redirect don't appear... If I remove the insert the alert and the redirect works... why? This is part of the code of my 3 files: registration.php (ajax call) $('#submit').click(function() {var username2 = $('#uname2').val(); var password2 = $('#psw2').val(); $.ajax({ url: 'ajax/response.php', type: 'GET', data: {username2 : username2, password2: password2}, success: function(data) { if(data === 'correct') { alert("Username and Password have been created!"); //don' work with the insert location.replace("main.php"); //don' work with the insert } else { alert("Username or password are not correct... please register yourself!"); } } }); }); response.php (answer to ajax call) if(isset($_GET['username2']) && isset($_GET['password2'])) {$username2 = $_GET['username2']; $password2 = $_GET['password2']; if (checkUser($pdo, $username2) === true) { echo 'duplicate'; } else { insertUserPwd($pdo, $username2, $password2); //including this line the redirect and the alert doesn't work... the insert is OK echo 'correct'; } } data_access.php (the function works but doesn't permit alert and redirect to appear) function insertUserPwd(PDO $pdo, $usr, $pwd){ $data = [ 'id' => '', 'user' => $usr, 'password' => $pwd ]; $sql = "INSERT INTO users (id, user, password) VALUES (:id, :user, :password)"; $stmt= $pdo->prepare($sql); $stmt->execute($data); } Can someone help me to fix the code? Here is my code: // Start MySQL Query for Records $query = "SELECT codes_update_no_join_1b" . "SET orig_code_1 = new_code_1, orig_code_2 = new_code_2" . "WHERE concat(orig_code_1, orig_code_2) = concat(old_code_1, old_code_2)"; $results = mysql_query($query) or die(mysql_error()); // End MySQL Query for Records This query runs perfectly fine when run direct as SQL in phpMyAdmin, but throws this error when running in my script??? Why is this??? Code: [Select] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '= new_code_1, orig_code_2 = new_code_2WHERE concat(orig_code_1, orig_c' at line 1 Hello all,
Based on the suggestion of you wonderful folks here, I went away for a few days (to learn about PDO and Prepared Statements) in order to replace the MySQLi commands in my code. That's gone pretty well thus far...with me having learnt and successfully replaced most of my "bad" code with elegant, SQL-Injection-proof code (or so I hope).
The one-and-only problem I'm having (for now at least) is that I'm having trouble understanding how to execute an UPDATE query within the resultset of a SELECT query (using PDO and prepared statements, of course).
Let me explain (my scenario), and since a picture speaks a thousand words I've also inlcuded a screenshot to show you guys my setup:
In my table I have two columns (which are essentially flags i.e. Y/N), one for "items alreay purchased" and the other for "items to be purchased later". The first flag, if/when set ON (Y) will highlight row(s) in red...and the second flag will highlight row(s) in blue (when set ON).
I initially had four buttons, two each for setting the flags/columns to "Y", and another two to reverse the columns/flags to "N". That was when I had my delete functionality as a separate operation on a separate tab/list item, and that was fine.
Now that I've realized I can include both operations (update and delete) on just the one tab, I've also figured it would be better to pare down those four buttons (into just two), and set them up as a toggle feature i.e. if the value is currently "Y" then the button will set it to "N", and vice versa.
So, looking at my attached picture, if a person selects (using the checkboxes) the first four rows and clicks the first button (labeled "Toggle selected items as Purchased/Not Purchased") then the following must happen:
1. The purchased_flag for rows # 2 and 4 must be switched OFF (set to N)...so they will no longer be highlighted in red.
2. The purchased_flag for row # 3 must be switched ON (set to Y)...so that row will now be highlighted in red.
3. Nothing must be done to rows # 1 and 5 since: a) row 5 was not selected/checked to begin with, and b) row # 1 has its purchase_later_flag set ON (to Y), so it must be skipped over.
Looking at my code below, I'm guessing (and here's where I need the help) that there's something wrong in the code within the section that says "/*** loop through the results/collection of checked items ***/". I've probably made it more complex than it should be, and that's due to the fact that I have no idea what I'm doing (or rather, how I should be doing it), and this has driven me insane for the last 2 days...which prompted me to "throw in the towel" and seek the help of you very helpful and intellegent folks. BTW, I am a newbie at this, so if I could be provided the exact code, that would be most wonderful, and much highly appreciated.
Thanks to you folks, I'm feeling real good (with a great sense of achievement) after having come here and got the great advice to learn PDO and prepared statements.
Just this one nasty little hurdle is stopping me from getting to "end-of-job" on my very first WebApp. BTW, sorry about the long post...this is the best/only way I could clearly explaing my situation.
Cheers guys!
case "update-delete":
if(isset($_POST['highlight-purchased']))
{
// ****** Setup customized query to obtain only items that are checked ******
$sql = "SELECT * FROM shoplist WHERE";
for($i=0; $i < count($_POST['checkboxes']); $i++)
{
$sql=$sql . " idnumber=" . $_POST['checkboxes'][$i] . " or";
}
$sql= rtrim($sql, "or");
$statement = $conn->prepare($sql);
$statement->execute();
// *** fetch results for all checked items (1st query) *** //
$result = $statement->fetchAll();
$statement->closeCursor();
// Setup query that will change the purchased flag to "N", if it's currently set to "Y"
$sqlSetToN = "UPDATE shoplist SET purchased = 'N' WHERE purchased = 'Y'";
// Setup query that will change the purchased flag to "Y", if it's currently set to "N", "", or NULL
$sqlSetToY = "UPDATE shoplist SET purchased = 'Y' WHERE purchased = 'N' OR purchased = '' OR purchased IS NULL";
$statementSetToN = $conn->prepare($sqlSetToN);
$statementSetToY = $conn->prepare($sqlSetToY);
/*** loop through the results/collection of checked items ***/
foreach($result as $row)
{
if ($row["purchased"] != "Y")
{
// *** fetch one row at a time pertaining to the 2nd query *** //
$resultSetToY = $statementSetToY->fetch();
foreach($resultSetToY as $row)
{
$statementSetToY->execute();
}
}
else
{
// *** fetch one row at a time pertaining to the 2nd query *** //
$resultSetToN = $statementSetToN->fetch();
foreach($resultSetToN as $row)
{
$statementSetToN->execute();
}
}
}
break;
}
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Hi.., I use below method to export data to excel. header('Content-type: application/ms-excel'); header('Content-Disposition: attachment; filename=abc.xls'); if I run the script from the server. (http://localhost/export.php) it is work. (pop-up window if i want save or open the file) but if i run the script from the client (http://192.168.1.5/export.php) it is not work. (nothing happen) any idea how to solve this? This one requires lots of up front information: I have a page, for this example that I will call page.php. It takes get parameters, and for this example I'll call the parameter "step". So I have a URL like this: page.php?step=1 This page has a form with an action of page.php?step=1. The code on the page validates the posting information. If the information is bad, it returns the user to page.php?step=1; if it is good, it takes the user to page.php?step=2 via header( "location:page.php?step=2" ). So redirection is done by relative path, not full URLs. This all works as expected. Now what I've done is set .htaccess to be HTTPS for this page, via this code: # Turn SSL on for payments RewriteCond %{HTTPS} off RewriteCond %{SCRIPT_FILENAME} \/page\.php [NC] RewriteRule ^(.*)$ https://%{HTTP_HOST}/$1 [R=301,L] This works (initially). However, once you try to post the form, it just redirects back to the step=1 version of the page. I really don't know how or why that would be. I'm not sure how else I can explain this or what other information you may have. But it's frustrating to not get a page working in HTTPS that works in HTTP. Very odd. Any suggestions? (I don't even really know the best location to figure out when/why it's redirecting back to the original page.) Say I have this query: site.com?var=1 ..I have a form with 'var2' field which submits via get. Is there a way to produce: site.com?var=1&var2=formdata I was hoping there would be a quick way to affix, but can't find any info. Also, the query could sometimes be: site.com?var2=formdata&var=1 I would have to produce: site.com?var2=updatedformdata&var=1 Is my only option to further parse the query? |
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