Mysqli multi_query Search of 2 Tables Not showing Results - php

Question

I'm up to my neck trying to figure out why my query isn't working. This is what my search.php page results in. I am able to _GET the search term perfectly but can't display the results.
Not sure if the issue is the fetch_array_assoc or what! Here's my code. Any help with this would be appreciated. Not 100% sure if my syntax is correct.
// Check connection
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$button = $_GET ['submit'];
$search = $_GET ['query'];
if (strlen($search) <= 1) {
echo "Search term too short";
}
else {
echo "You searched for <b>$search</b> <hr size='1'></br>";
$con = new mysqli("localhost", "user", "pass", "db");
// Check connection
if (mysqli_connect_errno()) {
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
$search_exploded = explode(" ", $search);
foreach ($search_exploded as $search_each) {
$x++;
if ($x == 1) {
$query = "Keyword_ID LIKE '%$search_each%' or Keyword_Name LIKE '%$search_each%' ";
}
else {
$query .= "OR Keyword_ID LIKE '%$search_each%' or Keyword_Name LIKE '%$search_each%' ";
}
}
$construct = mysqli_query($con, "SELECT * FROM profileTable WHERE $query");
$construct = mysqli_query($con, "SELECT * FROM addKeywordTable (Keyword_Name) WHERE $query");
$constructs = mysqli_multi_query($construct);
if (mysqli_multi_query($construct)) {
$numrows = mysqli_num_rows($query);
if ($numrows > 0) {
while ($row = mysqli_fetch_assoc($constructs)) {
$key = $row['Keyword_Name'];
$keyID = $row['keyID'];
$fname = $row['FirName'];
$lname = $row['LaName'];
$mname = $row['MName'];
$suffix = $row['Suffix'];
$title = $row['Title'];
$dept = $row['Dept'];
$phone1 = $row['PH1'];
$phone2 = $row['PH2'];
$email = $row['Email'];
$photo = $row['Photo'];
$bio = $row['BioLK'];
$tags = $row['Tags'];
echo '<h2>$fname $lname</h2>';
echo $key;
echo $title;
echo $dept;
}
}
else {
echo "Results found: \"<b>$x</b>\"";
}
}
}
mysqli_close();
?>
I am trying to search two different tables. addKeywordTable and profileTable. Profile table has all of the profile info for a user. The addKeywordTable stores the keywords/tag names 'Keyword_Name'.
I attempted to create a mysqli_multi_query but its not working at all.

Answer 1

I assuming:
$con is set by
$con = mysqli_connect("host", "user", "password", "db");
mysqli_multi_query : you must all sql commands, except the last, terminate with ;
and concenat $construct with .= . Otherwise you overwrite your $construct.
$construct = "SELECT * FROM profileTable WHERE $query ;");
$construct .= "SELECT * FROM addKeywordTable (Keyword_Name) WHERE $query");
don't set $construct with
$construct = mysqli_query($con, "SELECT * FROM profileTable WHERE $query");
your $construct will only become TRUE or FALSE .
with a variable wich contents TRUE or FALSEyou can not call
$constructs = mysqli_multi_query($con,TRUE);
And you call it wrong
$constructs = mysqli_multi_query($construct);
correct
$constructs = mysqli_multi_query($con,$construct);
You call mysqli_multi_query($construct) twice
$constructs = mysqli_multi_query($construct);
if (mysqli_multi_query($construct)) { ...
the first call is not necessary.
call it only with
if (mysqli_multi_query($con,$construct)) { ...
complete wrong is
if (mysqli_multi_query($construct)) {
$numrows = mysqli_num_rows($query);
if ($numrows > 0) {
while ($row = mysqli_fetch_assoc($constructs)) {
$query is at the moment a simple 'string'
$query = "Keyword_ID LIKE '%$search_each%' or Keyword_Name LIKE '%$search_each%' ";
Also wrong
while ($row = mysqli_fetch_assoc($constructs)) {
To retrieve the resultset from the first query you can use mysqli_use_result() or mysqli_store_result(). All subsequent query results can be processed using mysqli_more_results() and mysqli_next_result().
Call it like this instead
if (mysqli_multi_query($con,$construct)) {
if ($result = mysqli_store_result($con)) {
while ($row = mysqli_fetch_row($result)) {
printf("%s\n", $row[0]);
}
mysqli_free_result($result);
Set $x before you do $x++ .
$x = 0;
You can't be sure that $x is always automatically set to 0 .