I have written a code in PHP and not able to get a response from the code. Following is my code.
<?php
include_once("conectionFile.php");
$db = new Data();
$con = $db->Conn();
$val = $_REQUEST;
$lclQuery = "SELECT * FROM student_details WHERE st_id = ".$val."";
$lclResult = $con->query($lclQuery);
if($row = $lclResult->fetchAll(PDO::FETCH_ASSOC)) {
echo $res = json_encode($row);
}
?>
$lclQuery = "SELECT * FROM student_details WHERE st_id = ".$val."";
You need to change your query as it is not correct also $val is array so you need to use correct key there in order to get value for example $val = $_REQUEST['some_id'] then change query like
$lclQuery = "SELECT * FROM student_details WHERE st_id = '".$val."'";
Related
is there an issue with PHP not allowing multiple function parameters and returning the correct value. Here is the code:
function getConfig($name) {
$sql = "SELECT value FROM config WHERE name = '".$name."'";
$result = mysql_query($sql);
$row = mysql_fetch_assoc($result);
print $row["value"];
}
getConfig("name");
While the code above works, the code bellow similar does not work. Here is the code:
function getConfig($name, $from) {
$sql = "SELECT value '".$from."' config WHERE name = '".$name."'";
$result = mysql_query($sql);
$row = mysql_fetch_assoc($result);
print $row["value"];
}
getConfig("name", "config");
Why does that occur that the 1st function works and the second does not?
$sql = "SELECT value FROM '".$from."' WHERE name = '".$name."'";
// FROM TABLE_NAME
// and not TABLE_NAME TABLE_NAME
I'm trying to do a query based into a value obtained in a previous query. Something like that:
$variableid = 100;
$query_prev = "SELECT query FROM queries_table WHERE id = 1";
$result_prev = pg_query($pg,$query_prev);
$row_prev = pg_fetch_array($result_prev);
$final_query = $row_prev['query'];
$row_prev['query'] value would be "SELECT * FROM other_table WHERE id = $variableid";
$final_query value at this point is: "SELECT * FROM other_table WHERE id = $variableid"
/* but that I want is this value: */ "SELECT * FROM other_table WHERE id = 100"
Use if statement before you do the next select so:
<?php if ($row_prev['query']= 100){
SELECT .......... etc.
}else
SELECT from other
?>
/Hope that's what you wanted
Solved:
$variableid = 100;
$query_prev = "SELECT query FROM queries_table WHERE id = 1";
$result_prev = pg_query($pg,$query_prev);
$row_prev = pg_fetch_array($result_prev);
$query = $row_prev['query'];
eval("\$final_query = \"$query\";");
In the below code i want to join or implode all arrays of $trackersurl in a single line. i am getting the results in different lines, so i want to join in a single line.
Can anyone help me out?
I am searching results in stackoverflow, but could not follow.
My code is in below:
$sql = "SELECT * FROM announce WHERE torrent = $id ORDER BY seeders DESC";
$query = #mysql_query($sql);
while ($result = #mysql_fetch_array($query)) {
$trackersurl1 = $result['url'];
$trackersurl2 = "&tr=".$trackersurl1;
$trackersurl = array($trackersurl2);
}
Results of [var.trackersurl] in html page is below:
&tr=http:ajgdsjhg/ann
&tr=udp://iuysidfu/ann
&tr=udp:wutefghgw/ann
&tr=http://sdhgsjdhgj/ann
I want to join them in a single line below
&tr=http:ajgdsjhg/ann&tr=udp://iuysidfu/ann&tr=udp:wutefghgw/ann&tr=http://sdhgsjdhgj/ann
You should be careful of sql injection.
Are you looking to create an array['trackers'] with a string of all the trackers for a magnet link?
<?php
$sql = "SELECT * FROM announce WHERE torrent = ".mysql_real_escape_string($id)." ORDER BY seeders DESC";
$query = mysql_query($sql);
$tracker = null;
if(mysql_num_rows($query)>=1){
while ($result = mysql_fetch_array($query)) {
$tracker .= "&tr=".$result['url'];
}
}
$tracker = array('trackers'=>$tracker);
//$tracker['trackers'] = "&tr=a.com&tr=b.com&tr=c.com";
?>
Try this code
$newArray=array();
while ($result = #mysql_fetch_array($query)) {
$trackersurl1 = $result['title'];
$newArray[] = "&tr=".$trackersurl1;
}
$urlString=implode('',$newArray);
Im trying to generate an array but not sure how to go about it.
I'm currently getting my data like so:
$query = mysql_query("SELECT * FROM users WHERE userEmail LIKE 'test#test.com'");
$row = mysql_fetch_array($query);
$query1 = mysql_query("SELECT * FROM categories");
while($row1 = mysql_fetch_array($query1)){
$query2 = mysql_query("SELECT * FROM usersettings WHERE userId = ".$row['userId']." AND usersettingCategory".$row1['categoryId']." LIKE 'y'");
$isyes = mysql_num_rows($query2);
if($isyes > 0){
$cat1 = mysql_query("SELECT * FROM shops WHERE shopstateId = 1 AND (categoryId1 = ".$row1['categoryId']." OR categoryId2 = ".$row1['categoryId']." OR categoryId3 = ".$row1['categoryId'].")");
$cat1match = mysql_num_rows($cat1);
if($cat1match > 0){
while($cat1shop = mysql_fetch_array($cat1)){
$cat1msg = mysql_query("SELECT * FROM messages WHERE shopId = ".$cat1shop['shopId']." and messagestateId = 1");
while($cat1msgrow = mysql_fetch_array($cat1msg)){
echo $cat1msgrow['messageContent']." - ".$cat1msgrow['messageCode'];
$cat1img = mysql_query("SELECT shopimagePath FROM shopimages WHERE shopimageId = ".$cat1shop['shopimageId']);
$imgpath = mysql_fetch_array($cat1img);
echo " - ".$imgpath['shopimagePath']."<br/>";
}
}
}
}
}
But this can cause duplicates when a user has all 3 of a shops categories picked in their preferences. I am trying to find a way to just pull the message ID out instead of the whole thing and put it into an array giving me, for example:
1,3,5,7,1,3,5,2,4,7,8
Then I can just run a separate query to say get me all messages where the ID is in the array, but i am unsure of the most constructive way to build such an array and examples of array from a while loop I have seen do not seem to be what I am looking for.
Is there anyone out there that can push me in the right direction?
Can't help with this code. But if you want an array from a query without duplicate result, you can use " select DISTINCT (id) " in your query or for more simple solution :
$id_arr = array();
$sql = mysql_query("select id from id_table");
while ($id_result = mysql_fetch_array($sql) {
$id = $id_result['id'];
if (!in_array($id, $id_arr)) {
$id_arr[] = $id;
}
}
I have found a much easier way to create the required result. I think at 6am after a hard night coding my brain was fried and I was making things a lot more complicated than I needed to. A simple solution to my issue is as follows:
$query = mysql_query("SELECT * FROM users WHERE userEmail LIKE 'test2#test2.com'");
$row = mysql_fetch_array($query);
$categories = "(";
$query1 = mysql_query("SELECT * FROM categories");
while($row1 = mysql_fetch_array($query1)){
$query2 = mysql_query("SELECT usersettingCategory".$row1['categoryId']." FROM usersettings WHERE userId = ".$row['userId']);
$row2 = mysql_fetch_array($query2);
if($row2['usersettingCategory'.$row1['categoryId']] == y){
$categories .= $row1['categoryId'].",";
}
}
$categories = substr_replace($categories ,")",-1);
echo $categories."<br />";
$query3 = mysql_query("SELECT * FROM shops,messages WHERE shops.shopId = messages.shopId AND messages.messagestateId = 1 AND (shops.categoryId1 IN $categories OR shops.categoryId2 IN $categories OR shops.categoryId3 IN $categories)");
while($row3 = mysql_fetch_array($query3)){
$query4 = mysql_query("SELECT shopimagePath FROM shopimages WHERE shopimageId = ".$row3['shopimageId']);
$row4 = mysql_fetch_array($query4);
echo $row3['messageContent']." - ".$row3['messageCode']." - ".$row4['shopimagePath']."<br />";
}
I'm trying to get the sum of a column.
My Schema is as below...
I'd like to get the SUM of 'bill'.
I have the following...
<?php
$uid = $_SESSION['oauth_id'];
$query = mysql_query("SELECT * FROM `users`, `income`, `outgoings` WHERE users.oauth_uid = '$uid' and income.user_id = '$uid' and outgoings.user_id = '$uid'") or die(mysql_error());
$result = mysql_fetch_array($query);
?>
Outgoings = <?php echo $result["SUM(total)"];
I'm not receiving any output, however. Can anybody see where I'm going wrong? There's definitely data in my table.
The SUM function must be used when deciding what to return from the select. Like so.
SELECT SUM(`bill`) FROM `users`, `income`, `outgoings` WHERE users.oauth_uid = '$uid' and income.user_id = '$uid' and outgoings.user_id = '$uid'
Try this if you don't want to do a SUM() query as already proposed by others:
<?php
$sum = 0;
while ($row = mysql_fetch_array($query)) {
$sum += $row['bill'];
}
?>
Outgoings = <?php echo $sum; ?>
But remember that you will need this if you want to reuse the same $query resultset:
<?php
mysql_data_seek($query , 0);
?>
Why not just query for the SUM directly? Like:
<?php
$uid = $_SESSION['oauth_id'];
$sum = mysql_query("SELECT SUM(`bill`) FROM `users` WHERE users.oauth_uid = '$uid'") or die(mysql_error());
?>
This query will get you the sum:
SELECT sum(bill) FROM `the_table`