What are some best practices for handling image links in PHP scripts to prevent empty placeholders from being displayed?

When handling image links in PHP scripts, it's important to check if the image link is empty before displaying it to prevent placeholders from being displayed. One way to do this is by using the `file_exists()` function to verify if the image file exists before rendering it in the HTML output. 

<?php
$imageLink = "path/to/image.jpg";

if(file_exists($imageLink)) {
    echo "<img src='$imageLink' alt='Image'>";
} else {
    echo "Image not found";
}
?>

Keywords

PHP image links error handling empty placeholders display prevention

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