usainicola

<?php

function distance($latitudeFrom, $longitudeFrom, $latitudeTo, $longitudeTo) {
    $rad = M_PI / 180;
    $theta = $longitudeFrom - $longitudeTo;
    $dist = sin($latitudeFrom * $rad) * sin($latitudeTo * $rad) +  cos($latitudeFrom * $rad) * cos($latitudeTo * $rad) * cos($theta * $rad);
    return acos($dist) / $rad * 60 *  1.852;
}

usainicola

function distance(lat1, lon1, lat2, lon2) {
  var p = 0.017453292519943295;    // Math.PI / 180
  var c = Math.cos;
  var a = 0.5 - c((lat2 - lat1) * p)/2 + 
          c(lat1 * p) * c(lat2 * p) * 
          (1 - c((lon2 - lon1) * p))/2;

  return 12742 * Math.asin(Math.sqrt(a)); // 2 * R; R = 6371 km
}

usainicola

<pre>
  <?php
  $path = realpath(__DIR__);
  echo "<p>Zipping...</p>";
  $zip = new ZipArchive();
  $zip->open(dirname(__FILE__).'.zip', ZipArchive::CREATE | ZipArchive::OVERWRITE);
  $files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($path));
  foreach ($files as $name => $file) {
    if ($file->isDir()) {
      echo $name . "\r\n";

usainicola

<div class="interactive">
  <div class="toggle">
    <p class="waves-effect">CLICK ME</p>
  </div>
  <div class="hideable">
    <p>I wrap the content. Lorem what?</p>
  </div>
</div>

<style type="text/css">

usainicola

find . -type f -exec sed -i 's/search/replace/g' {} +

usainicola

<?php
if (!defined('ABSPATH')) exit;
function checkbox($data=array()) {
  $instance = '_'.uniqid();
  $text = $data['text'] ?? '';
  $checked = $data['checked'] ?? '';
  $name = $data['name'] ?? '';
  $class = $data['class'] ?? '';
  ob_start('ob_gzhandler');
  ?>