Only show pictures - php

Question

I have this script:
$uploadsDirectory = dirname($_SERVER['SCRIPT_FILENAME']) .'/slides/head/';
if ($handle = opendir($uploadsDirectory)) {
$uplo = array();
while (false !== ($file = readdir($handle))) {
array_push($uplo, $file);}
sort($uplo,SORT_NATURAL | SORT_FLAG_CASE);
$user = array();
foreach($uplo as $fname) {
if($fname != ".." && $fname != "."){
if(substr($fname,0,1) != "_")
echo "<div class='bgitem' id='head'>$fname</div>";
else
array_push($user, "$fname");}}
closedir($handle);}
It works fine, but how can I make it so it only shows the pictures? (I have other files that aren't photos, so it displays a broken picture instead.)

Answer 1

A simple way would be to have it test whether the file is an image in the same line where you test if the file is a parent directory or the current directory (if($fname != ".." && $fname != "."){)
You can use getimagesize() to determine if the file is any kind of image. If it is not an image, it will return zero.
$uploadsDirectory = dirname($_SERVER['SCRIPT_FILENAME']) .'/slides/head/';
if ($handle = opendir($uploadsDirectory)) {
$uplo = array();
while (false !== ($file = readdir($handle))) {
array_push($uplo, $file);}
sort($uplo,SORT_NATURAL | SORT_FLAG_CASE);
$user = array();
foreach($uplo as $fname) {
if($fname != ".." && $fname != "." && getimagesize($fname) != 0){ //Tests if file is an iamge
if(substr($fname,0,1) != "_")
echo "<div class='bgitem' id='head'>$fname</div>";
else
array_push($user, "$fname");}}
closedir($handle);}

Answer 2

Solution for you:
$extension = explode(".", $fname);
$extension = (isset($extension) && count($extension) > 0)?strtolower($extension[count($extension) -1]):null;
if(in_array($extension, ['jpg', 'jpeg', 'png', 'gif'])){
//Show the image
}else{
//dont show image
}