How to ckeck and display an image if there is one - php

Question

I would like to ask for some help because I am stuck at that problem. I have a MySQL DB and I am trying to create some kind of a blog system. The problem which occure to me is this:
I would like to check is there is an image tag if not not to display it. The system works perfect without images but it would be nice if I new where I messed it up. Here is my code up to now:
function outputStory($article, $only_snippet = FALSE){
global $conn;
if($article){
$sql = "SELECT ar.*, usr.name FROM cms_articles ar LEFT OUTER JOIN cms_users usr ON ar.author_id = usr.user_id WHERE ar.article_id = " . $article;
$result = mysql_query($sql, $conn);
if($row = mysql_fetch_array($result)){
echo "<h2>" . htmlspecialchars($row['title']) . "</h2>\n";
echo"<h5><div class='byLine'>От:" . htmlspecialchars($row['name']) . "</div>";
echo "<div class='pubdate'>";
if($row['is_published'] == 1){
echo date("F j, Y",strtotime($row['date_published']));
} else {
echo "No articles are published yet!";
}
echo "</div></h5>\n";
if ($only_snippet){
echo "<p>\n";
echo nl2br(trimBody($row['body']));
// I think I messed this statement alot but don't know how to make it work properly :S
if(hasPostImage() == true){
$getPostImage = "SELECT * FROM cms_images";
$getImgResult = mysql_query($getPostImage,$conn);
$rowImg = mysql_fetch_array($getImgResult);
echo"<img src='".$rowImg['img_src']."' alt='".$rowImg['img_desc']."'>";
} else {
echo '<img style="display:none">';
}
echo "</p>\n";
echo "<h4>More...</h4><br>\n";
} else {
echo "<p>\n";
echo nl2br($row['body']);
echo "</p>\n";
}
}
}
}
I hope the question is not silly or something else and thank you for the help in advance.

Answer 1

There are many ways for doing this, my first approach is to first check you are getting file in $_FILES is its okay then there is functions available in PHP to check file size means this will give you files size in bytes and height and width as well. File Size()
also getimagesize() if this criteria matches your criteria then proceed further