PHP - Change only one row, not all - php

Question

I've just started with PHP and literally been stuck now for 5 hours straight trying to figure this out! I understand what's happening but cannot for the life of me find a fix anywhere D: Basically each row is displayed on the users browser. Beside each one is a 'Mark as complete' button. When this button is pressed is changes the value from 0 to 1. Problem is, it changes the value of 0 to 1 for every row D: Please help me it's a pain in the but now haha! Heres my code:
<?php
// Declare Variables
$host = localhost;
$user = root;
$pass = root;
$db = test;
// Create connection to database
$link = mysqli_connect($host, $user, $pass, $db);
// Check to see if connection was established
if($link === false) {
die("Connection could not be established to database" .mysqli_error());
}
$sql = "SELECT * FROM details WHERE Status = 0";
// Show data
if($result = mysqli_query($link, $sql)){
if(mysqli_num_rows($result) > 0){
echo "<table>";
echo "<tr>";
echo "<th>First name</th>";
echo "<th>Last name</th>";
echo "<th>Destination</th>";
echo "<th>Value</th>";
echo "</tr>";
while($row = mysqli_fetch_array($result)){
echo "<tr>";
echo "<form action='complete.php' method='post'>";
echo "<td>" . $row['FirstName'] . "</td>";
echo "<td>" . $row['LastName'] . "</td>";
echo "<td>" . $row['Destination'] . "</td>";
echo "<td>" . $row['Status'] . "</td>";
echo "<td>" . "<input type='submit' value='Mark as complete'>" . "</td>";
echo "</tr>";
}
echo "</table>";
}
else{
echo "No records matching your query were found.";
}
}
else{
echo "ERROR: Could not able to execute $sql. " . mysqli_error($link);
}
?>
and complete.php
<?php
// Declare Variables
$host = localhost;
$user = root;
$pass = root;
$db = test;
// Create connection to database
$link = mysqli_connect($host, $user, $pass, $db);
// Check to see if connection was established
if($link === false) {
die("Connection could not be established to database" .mysqli_error());
}
// sql to delete a record
$sql = "UPDATE details SET Status=1";
if ($link == true) {
echo "Marked as complete";
} else {
echo "Error updating record: " . $link->error;
}
mysqli_close($link)
?>

Answer 1

You are missing some steps. Here is the full process as you want to do.
Just replace with your. I hope this will solve your problem.
<?php
// Declare Variables
$host = localhost;
$user = root;
$pass = root;
$db = test;
// Create connection to database
$link = mysqli_connect($host, $user, $pass, $db);
// Check to see if connection was established
if($link === false) {
die("Connection could not be established to database" .mysqli_error());
}
$sql = "SELECT * FROM details WHERE Status = 0";
// Show data
if($result = mysqli_query($link, $sql)){
if(mysqli_num_rows($result) > 0){
echo "<table>";
echo "<tr>";
echo "<th>First name</th>";
echo "<th>Last name</th>";
echo "<th>Destination</th>";
echo "<th>Value</th>";
echo "</tr>";
while($row = mysqli_fetch_array($result)){
echo "<tr>";
echo "<form action='complete.php' method='post'>";
echo "<td>" . $row['FirstName'] . "</td>";
echo "<td>" . $row['LastName'] . "</td>";
echo "<td>" . $row['Destination'] . "</td>";
echo "<td>" . $row['Status'] . "</td>";
echo "<td>" . "<input type='submit' value='Mark as complete'>" . "</td>";
// Put your primary key column name in the place of Id
echo "<input type='hidden' name='user_id' value='".$row['Id']."'>";
echo "</form>";
echo "</tr>";
}
echo "</table>";
}
else{
echo "No records matching your query were found.";
}
}
else{
echo "ERROR: Could not able to execute $sql. " . mysqli_error($link);
}
?>
and complete.php
<?php
// Declare Variables
$host = localhost;
$user = root;
$pass = root;
$db = test;
// Create connection to database
$link = mysqli_connect($host, $user, $pass, $db);
// Check to see if connection was established
if($link === false) {
die("Connection could not be established to database" .mysqli_error());
}
// sql to delete a record
// Put your primary key column name in the place of Id
$sql = "UPDATE details SET Status=1 WHERE Id='".$_POST['user_id']."' ";
if ($link == true) {
echo "Marked as complete";
} else {
echo "Error updating record: " . $link->error;
}
mysqli_close($link)
?>