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

<?php

function uniqidReal($length = 8) {
    // uniqid gives 8 chars, can be changed
    if (function_exists("random_bytes")) {
        $bytes = random_bytes(ceil($length / 2));
    } elseif (function_exists("openssl_random_pseudo_bytes")) {
        $bytes = openssl_random_pseudo_bytes(ceil($length / 2));
    } else {
        throw new Exception("no cryptographically secure random function available");
    }
    return substr(bin2hex($bytes), 0, $length);
}

/*
//for testing
for($i = 0; $i < 10; $i++) {
  echo "<br>";
  echo uniqidReal();
}
*/
?>

<?php
//generate 239 rgba colors for codecatch's 239 supported programming languages!
//this was used to generate the colors that are used in the pie chart on https://codecatch.net/graphs.php
function rgbagenerator() {
  $count = 239;
  for ($i=0; $i < $count; $i++) {
    echo "'rgba(". mt_rand(0,255) . ",". mt_rand(0,255) . ",". mt_rand(0,255) . ",1)',";
    echo "<br>";
  }
}

rgbagenerator();
?>

<?php
function getRandomId($min = NULL, $max = NULL) {
    if (is_numeric($min) && is_numeric($max)) {
        return mt_rand($min, $max);
    }
    else {
        return mt_rand();
    }
}
?>

<?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
/*
 * @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];
}
?>