Wiki Snippets

PhpStorm->Code->Reformat Code or Ctrl+Shift+Alt+L and click Reformat file

Before PHP 7: if (isset($inputData)) { $param = $inputData; } else { $param = ‘default’; } In PHP 7: $param = $inputData ?? ‘default’; or $param = $inputData ?? $someData ?? ‘default’;

class MyCar { function setPedals() { // code logic return this; }   function setWheels() { // code logic return this; }   function setEngine() { // code logic } }   $myCar = new MyCar(); $myCar.setPedals().setWheels().setEngine(); This pattern also called Fluent Interface. More information can be found here: Method chaining Fluent interface

Моcк — имитация объекта Stub — заглушка для метода

  <?php   function calcCheckDigit($inputCode) { $btArray = str_split($inputCode); $total = 0;   for ($index = 0; $index < sizeof($btArray); $index++) { $btChr = ord($btArray[$index]);   if ($btChr == 60) { //convert spacer char < to 0 $btArray[$index] = 0; } else if ($btChr >= 65) { //convert letters A-Z to 10-35 $btArray[$index] = $btChr […]

Normally, when a function is completed/executed, all of its variables are deleted. However, sometimes we want a local variable NOT to be deleted. We need it for a further job. To do this use the static keyword.

  <?php   function recursive(&$myarray, $dir, $recursiveDir = null) {   $items = scandir($dir);   foreach ($items as $item) {   if ($item != "." && $item != "..") {   $file = $dir. DIRECTORY_SEPARATOR. $item;   if (is_dir($file)) { definitions($routes, $file, $file); } else { // get name of api $expl = explode(".", $item); […]

  <?php $url = function($folder) use ($hostname) { return $hostname . DIRECTORY_SEPARATOR . $folder; };   $hostname = "https://" . $_SERVER[’SERVER_NAME’];   $myurl = $url(’pictures’); echo $myurl;   // output // https://www.aghayev.com/pictures

Stateless – when the application doesn’t save anything to the disk or to the RAM that is required to process future workloads. The benefit of stateless application is that it is possible to run multiple instances of an application in order to distribute workload and increase availability.

How-to add namespaces to old php project https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-4-autoloader-examples.md Simple project with namespaces https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-4-autoloader-examples.md