<?php
   $json ='{"id":1,"name":"foo","interest":["wordpress","php"]}';
   $obj=json_decode($json);
   echo $obj->interest[1]; //prints php
?>

<?php
$listOfFiles = glob("*.{jpg,png,gif,tiff,jpeg}", GLOB_BRACE);

echo 'images = []; ';

for($x = 0; $x <= count($listOfFiles)-1; $x++) {
	echo "images[" . $x . "] =" . '"' . $listOfFiles[$x] . '"' . "; ";
}
?>

<?php
/*
 * @param string $file Filepath
 * @param string $query Needed information (0 = width, 1 = height, 2 = mime-type)
 * @return string Fileinfo
 */

function getImageinfo($file, $query) {
if (!realpath($file)) {
    $file = $_SERVER["DOCUMENT_ROOT"] . $file;
}
$image = getimagesize($file);
return $image[$query];
}
?>

<?php
header('Content-Type:text/html');

$jsonData = json_decode(file_get_contents("names.json"));
$namesArray = array();

foreach($jsonData as $data) {
  $namesArray[] = $data;
}

for($i = 0; $i < 64000; $i++) {
  echo 'D.add_edge("'. $namesArray[array_rand($namesArray)] . '", "' . $namesArray[array_rand($namesArray)]. '")';
  echo "<br>";
}
?>

<?php
$username = "Austin Leath -_#";
$username_err = "no error";
if(preg_match('/[^a-z_\-0-9]/i', $string)) {
  $username_err = "Username can only contain alphanumeric characters, dashes, and underscores.";
}

echo $username_err
?>

<?php
function getFileExtension($file) {
    return end(explode(".", $file));
}
?>