PHP MySQL Only Printing Last Row in Query - php

Question

Is it possible to get different output when you run the exact same query from PHP vs. PHPMyAdmin? When I run
$sql = "SELECT IF(PersonA=200, PersonB, PersonA) AS Person
FROM People
WHERE PersonA=200 OR PersonB=200;";
I get the correct output from PHPMyAdmin but a different (incorrect) result from my PHP code above. The following is my SQL class I use.
<?php
class SQLQueryExecutor {
private $queryString;
private $conn;
private $db;
private $host;
private $username;
private $password;
public function __construct($queryString, $db, $host, $username, $password) {
$this->queryString = $queryString;
$this->conn = NULL;
$this->db = $db;
$this->host = $host;
$this->username = $username;
$this->password = $password;
}
// make connection to mysql database
public function makeConnection() {
$this->conn = new mysqli($this->host, $this->username, $this->password, $this->db);
if ($this->conn->connect_error) {
die("Connection failed: " . $this->conn->connect_error);
}
}
// execute query
public function executeQuery() {
if ($this->conn != NULL)
{
$result = mysqli_query($this->conn, $this->queryString);
$rows = Array();
if ($result !== False) // resource returned?
{
while($row=mysqli_fetch_assoc($result))
{
$rows= $row;
}
return $rows;
}
}
return NULL;
}
// close sql connection
public function closeConnection() {
mysql_close($this->conn);
}
} // class
?>
I call this class as follows...
$user = $_GET['User_ID'];
$sql = "
SELECT IF(PersonA=$user, PersonB, PersonA) AS Person
FROM People
WHERE PersonA=$user OR PersonB=$user;";
$newSQLQueryExecutor = new SQLQueryExecutor($sql, "blah","blah", "blah", "blah");
$newSQLQueryExecutor->makeConnection();
$rows = $newSQLQueryExecutor->executeQuery();
$friends = Array("friends" => $rows);
$newSQLQueryExecutor->closeConnection();
print_r($friends);
The PHPMyAdmin prints all the correct rows but the PHP only prints the very last row.

Answer 1

Here is your issue, a mistake in the executeQuery() method
public function executeQuery() {
if ($this->conn != NULL) {
$result = mysqli_query($this->conn, $this->queryString);
$rows = Array();
if ($result !== False) { // resource returned?
while($row=mysqli_fetch_assoc($result)) {
$rows[] = $row;
// amended ^^
}
return $rows;
}
}
return NULL;
}