How can the getimagesize() function be effectively used to check image dimensions in PHP scripts?

The getimagesize() function in PHP can be effectively used to check image dimensions by returning an array containing the width and height of the image. This can be useful for validating image uploads or displaying images based on certain size requirements in a PHP script. 

$image_path = 'path/to/image.jpg';
$image_size = getimagesize($image_path);

if($image_size !== false){
    $image_width = $image_size[0];
    $image_height = $image_size[1];
    
    // Check image dimensions
    if($image_width > 500 && $image_height > 300){
        echo 'Image dimensions are valid.';
    } else {
        echo 'Image dimensions are not valid.';
    }
} else {
    echo 'Invalid image file.';
}

Keywords

getimagesize function image dimensions PHP scripts error types

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