Why is this PHP while query not working? - php

Question

I have this simple pre-sort database input thing, I've created this before, what I'm screwing up is the while aspect.
There are two different tables: a table that keeps track of keyword frequencies and a table for the entries themselves paired with the keyword.
What I'm doing is saving something by a keyword, I check if the keyword exists, if it does, I increment the count of that keyword and then proceed to add the entry to the entry database, if not I create a new entry of that keyword in the keyword table and set the count as 1, then add the entry to the entry database.
$query = "SELECT COUNT(*) FROM key WHERE key=?";
if($stmt = $link->prepare($query)){
$stmt->bind_param('s',$key);
$stmt->execute();
while ($row = $stmt->fetch_row()){
$count = $row[0];
}
// count comes out here
// echo $count;
if($count==0){
// insert new entry
$stmt = mysqli_prepare($link, "INSERT INTO entry VALUES (?,?,?,?,?)");
$stmt->bind_param('issss',$id,$poster,$key,$entry,$date);
$stmt->execute();
// insert new key
$stmt = mysqli_prepare($link, "INSERT INTO key VALUES (?,?,?)");
$stmt->bind_param('isi',$id,$key,$numtimes);
$stmt->execute();
} else {
// insert new entry
$stmt = mysqli_prepare($link, "INSERT INTO entry VALUES (?,?,?,?,?)");
$stmt->bind_param('issss',$id,$poster,$key,$entry,$date);
$stmt->execute();
// update key count
$stmt = mysqli_prepare($link, "UPDATE key SET numtimes=key+1 WHERE key=$key");
$stmt->bind_param('s',$key);
$stmt->execute();
}
}

Answer 1

<?php
$query = "SELECT COUNT(*) FROM key WHERE key=?";
if($stmt = $link->prepare($query)){
$stmt->bind_param('s', $key);
$stmt->execute();
$result = $stmt->get_result();
while ($row = $result->fetch_row()){
$count = $row[0];
}
$stmt->close();
// count comes out here
// echo $count;
if($count == 0){
// insert new entry
$stmt = mysqli_prepare($link, "INSERT INTO entry VALUES (?,?,?,?,?)");
$stmt->bind_param('issss', $id, $poster, $key, $entry, $date);
$stmt->execute();
// insert new key
$stmt = mysqli_prepare($link, "INSERT INTO key VALUES (?,?,?)");
$stmt->bind_param('isi',$id,$key,$numtimes);
$stmt->execute();
$stmt->close();
} else {
// insert new entry
$stmt = mysqli_prepare($link, "INSERT INTO entry VALUES (?,?,?,?,?)");
$stmt->bind_param('issss',$id,$poster,$key,$entry,$date);
$stmt->execute();
// update key count
$stmt = mysqli_prepare($link, "UPDATE key SET numtimes=key+1 WHERE key=$key");
$stmt->bind_param('s',$key);
$stmt->execute();
$stmt->close();
}
}
?>
This should do the trick for you, you can't use fetch_row() directly on $stmt, that was your mistake.

Answer 2

There are two issues
first
while ($row = $stmt->fetch_row()){
$count = $row[0];
}
should be replaced by simply
$count = $stmt-rowCount()
You actually don't need the 'keys' table. Consider your DB schema again. The keys table is superfluous. The 'entry' table will suffice just update the entry table and you are good. All information can be obtained by querying the entry table rightly