How to check if an image exists in Joomla 3.x?

Question

Joomla

Hello.
My news output is as follows

<div class="col-sm-6 minor">
      <a class="title-news-minor" href="<?=$item->link?>">
        <img src="<?=$images->image_intro?>" alt="<?=$item->title?>" title="<?=$item->title?>" class="no-lightbox">
        <<?=$item_heading?>><?=$item->title?></<?=$item_heading?>>
      </a>
      <p class="date-news"><?php echo $item->created;?></p>
    </div>

How to make it check for the presence of the image_intro image? Now if there is no picture, then the image of a broken picture.

Answer 1

Thanks for the tip. I did it with pictures

<div class="col-sm-6 minor">
        <a class="title-news-minor" href="<?=$item->link?>">
        	<?php if(isset($images->image_intro) && $images->image_intro !== '')  {
        		?>
           <img src="<? echo $images->image_intro; ?>" alt="<? echo $item->title; ?>" title="<?echo $item->title; ?>" class="no-lightbox">
           <?
      } ?>
          <<?=$item_heading?>><?=$item->title?></<?=$item_heading?>>
        </a>
        <p class="date-news"><?php echo $item->created;?></p>
      </div>

Answer 2

The questions are too simple.
And most importantly, everything is googled in 5 minutes.
I know, because I myself once looked for exactly the same questions.
Correct check for emptyness of a variable?

if(isset($var) && $var !== '')  {
// $var не null и не  ''.
}

I don't see any tag output in the code at all. They may be included, but I do not see that they were displayed.
to help. There are all the variables, see what you need and put in the template.