Problems to iterate objects in array - php

Question

I have this method below which is responsible for bringing me an array of objects (blog).
public function getListaBlogsById($id) {
$result = array();
try {
$statement = $this->getDb()->prepare('SELECT * FROM Blog WHERE categoria_id = :id');
$statement->bindParam(':id', $id);
$statement->execute();
$result = $statement->fetchAll();
} catch (Exception $ex) {
$ex->getTrace();
}
return $result;
}
And I know that the array is not null. What I want to do is to iterate the objects inside the array in this way:
<?php foreach ($blog_category as $item): ?>
<h2>
<?php echo $item->getTitle(); ?>
</h2>
<p class="lead">
by <?php echo $item->getAuthor(); ?>
</p>
<p><i class="fa fa-clock-o"></i> Postado em
<?php $date = strtotime($item->getDate());
$br_format = date("d/m/Y g:i A", $date);
echo $br_format;
?></p>
<hr>
<a href="<?php echo Utils::createLink('detail-post', array('id' => $item->getId())); ?>">
<img class="img-responsive img-hover" src="../web/img/1850_james_ancestry.JPG" alt=""/>
</a>
<hr>
<p><?php echo $item->getPre(); ?></p>
<a class="btn btn-primary" href="<?php echo Utils::createLink('detail-post', array('id' => $item->getId())); ?>">Leia mais <i class="fa fa-angle-right"></i></a>
<hr>
<?php endforeach; ?>
But the page renders nothing.
Any light will be appreciated.

Answer 1

The object that is used will have been created from strClass() and therefore does not have any get methods associated with it.
So change your script like so in order to access the properties of these objects directly rather than expecting them to have an associated ->getxxx() method.
<a href="<?php echo Utils::createLink('detail-post', array('id' => $item->id)); ?>">
<?php echo $item->title; ?>
</a>
The actual names of the properties will depend on the column names ( and column name case) you have on the table you queried.
You may also need to change this line in your getListaBlogsById($id) funtion to ensure that the data is returned as an object and not an array
From
$result = $statement->fetchAll();
To
$result = $statement->fetchAll(PDO::FETCH_CLASS);

Answer 2

Thanks #RiggsFolly for your help. I solve my problem making some modification as fallows:
public function getListaBlogsById($id) {
try {
$result = array();
$blog = new Blog();
$statement = $this->getDb()->prepare('SELECT * FROM Blog WHERE categoria_id = :id');
$statement->bindParam(':id', $id);
if ($statement->execute()) {
while ($row = $statement->fetch()) {
BlogMapper::map($blog, $row);
$result[$blog->getId()] = $blog;
}
}
} catch (Exception $ex) {
$ex->getTrace();
}
return $result;
}
and
public static function map(Blog $blog, array $properties) {
if (array_key_exists('id', $properties)) {
$blog->setId($properties['id']);
}
if (array_key_exists('blog_author', $properties)) {
$blog->setAuthor($properties['blog_author']);
}
if (array_key_exists('blog_article_title', $properties)) {
$blog->setTitle($properties['blog_article_title']);
}
if (array_key_exists('blog_date_creation', $properties)) {
$blog->setDate($properties['blog_date_creation']);
}
if (array_key_exists('blog_article_pre', $properties)) {
$blog->setPre($properties['blog_article_pre']);
}
if (array_key_exists('blog_article', $properties)) {
$blog->setArticle($properties['blog_article']);
}
if (array_key_exists('categoria_id', $properties)) {
$blog->setCategoria_id($properties['categoria_id']);
}
}