Wordpress custom database query - php

Question

I am trying to get the result from the database with the mysql LIKE but in wordpress its not working here is the code of what i am trying
//this is what i am putting in where clause.
$state = $_POST['state'];
//table name.
$table_name = $wpdb->prefix . 'userprofile';
//trying but this is returning empty
$q = 'SELECT * FROM ' . $table_name . 'WHERE state LIKE \'%' . esc_sql( like_escape( $state ) ) . '%\'';
echo $q;
$result = $wpdb->get_results($q);
if (empty($result)) {
echo "the result is empty";
}
//returns empty array.
print_r($result);

Answer 1

You are missing a space:
$q = 'SELECT * FROM ' . $table_name . 'WHERE[..snip..]
^---here
which means you're producing
SELECT * FROM whateveruserprofileWHERE
which is invalid SQL.

Answer 2

Like Marc B. said, there are some missing quotes and unnecessary quotations.. change your query line, to this:
$q = "SELECT * FROM $table_name
WHERE state LIKE '%". esc_sql( like_escape( $state ) ) . "%'
AND WHERE city LIKE '%". esc_sql( like_escape( $city ) ) . "%'
AND WHERE session LIKE '%". esc_sql( like_escape( $session ) ) . "%'
OR WHERE another LIKE '%". esc_sql( like_escape( $another ) ) . "%' ";
and your POST line to this:
$state = $_POST['state'];

Answer 3

do this way
$state = esc_sql( $state );
$state = like_escape( $state );
$state = '%' . $state . '%';
$q = 'SELECT * FROM ' . $table_name . 'WHERE state LIKE '$state';