Get image height and width PHP

Question

Hello I need to get the height and width on the fly of an uploaded image.

This is the PHP function I am using, but it does not return anything for the width and heig

Answer 1

$DOCS_NAME = $_FILES['DOCS']['name'];
$DOCS_SIZE = getimagesize($_FILES['DOCS']['tmp_name']);
$DOCS      = file_get_contents ($_FILES['DOCS']['tmp_name']);
$FILE_SIZE = $_FILES["DOCS"]["size"];
$FILE_TYPE = $_FILES["DOCS"]["type"];

echo 'Width     = '.$DOCS_SIZE[0]. "
";
echo 'Height    = '.$DOCS_SIZE[1]. "
";;  
echo '2         = '.$DOCS_SIZE[2]. "
";;  
echo '3         = '.$DOCS_SIZE[3]. "
";;  
echo 'bits      = '.$DOCS_SIZE['bits']. "
";;
echo 'channels  = '.$DOCS_SIZE['channels']. "
";;
echo 'mime      = '.$DOCS_SIZE['mime']. "
";
echo 'type      = '.$_FILES["DOCS"]["type"]. "
";
echo 'size      = '.$_FILES["DOCS"]["size"]. "
";