how to declare a php variable from a mysql fetch result? - php

Question

i know it might be somthing old but i need to declare a variable or that is what i think.
basically i got a table name request and i need to fetch the last value from the column date. which i did in phpMyAdmin. now i need to fecth that exact value and use it as a variable in php.
<?php
include 'mydb.php';
require_once 'init.php';
$user_id = $user->data()->id ;
$data = mysql_query("SELECT date FROM request WHERE user_id= $user_id ORDER BY latest_request DESC LIMIT 1") or die(mysql_error());
$test = array();
while($row = mysql_fetch_array( $data ))
{
echo "<td>" .$row['date']. "</td>" ;
}
?>
<?php
$current_date = echo "<td> .$row['date']. "</td>" ;
// result im expecing is 2016-10-17 23:53:48
// echo " $current_date" --- will be 2016-10-17 23:53:48
>?
but all i get is an empty value, how can i accomplish this

Answer 1

If you want to have only one, last row, then maybe better idea would be something like that:
$sql = 'SELECT date FROM request WHERE user_id= $user_id ORDER BY latest_request DESC LIMIT 1';
$result = mysql_query($sql, $yourDBCon) or die(mysql_error());
$row = mysql_fetch_assoc($result);
print_r($row);
This solutions brings you only one row.
Also make sure you get anything from sql statment.

Answer 2

Here's a working code (based on the fact that you say that the while()-loop works, and that you actually get a result with the $row['date']:
<?php
include 'mydb.php';
require_once 'init.php';
$user_id = $user->data()->id ;
$data = mysql_query("SELECT date FROM request WHERE user_id = $user_id ORDER BY latest_request DESC LIMIT 1") or die(mysql_error());
while($row = mysql_fetch_array( $data )) {
echo $lastdate = '<td>'.$row['date'].'</td>' ;
}
echo $current_date = '<td>'.$lastdate.'</td>' ;
?>

Answer 3

i was able to solve this issues by using pdo insted
<?php
$base_datos = DB::getInstance();
$base_datos->query ("SELECT req_date FROM request wHERE user_id = $user_id order by req_date desc limit 1");
$last_date = $base_datos->results();
$request_last_date = $last_date[0];
$c_date =$request_last_date->req_date;
echo "$c_date";
?>
this was to get a value from a table on my database and declared it as a value