Creating Arrays

Use array();

Create an empty array

  $result_search = array();

//You can add items to it like this:
  $result_search[] = "a";
  $result_search[] = "b";

	$array = array_fill(0, 24, 0);		//Fill an array from index 0, 24 items long, with default value 0

Create an array of values

  $names = array('Adam', 'Bill', 'Charlie);
  echo $names[1];      //Displays Bill

Key & Value Arrays

  $MyKeyValueArray = array(
    'comments' => $comments_count,
    'responses' => $responses_count
);

or create like this

  $MyKeyValueArray = array();
  $MyKeyValueArray['comments'] = $comments_count;
  $MyKeyValueArray['responses'] = $responses_count;

Accessing the array keys and values

  foreach ($MyKeyValueArray as $Key => $Value)
  {
    echo "{$Key} => {$Value} ";
  }

  foreach ($MyArray as $Item)
  {
  }

Two Dimension Arrays

  $MyArray = array(
               array('1', '2', '3', '4'),
               array('10', '20', '30', '40'),
               array('100', '200', '300', '400'));

  echo $MyArray[1][2];       //Displays 30

		$MyArray = array(
						$array = array_fill(0, 24, false),		//Fill an array from index 0, 24 items long, with default value false
						$array = array_fill(0, 24, false),
						$array = array_fill(0, 24, false),
						);

You can carry on creating arrays within arrays if desired.

Accessing Array Values

	$my_val = $my_array[0][video_index];

Array Length

  count(MyArray)

Is Array?

  if (!is_array($my_array))

Is Array Empty

  if (empty($my_array))

Does array index exist?

  if (isset($matches[1]))
  {
//Another example
  return isset($args['v']) ? $args['v'] : false;

Does value exist in array

  if (in_array("MySearchValue", $MyArray))
    //Do something

Foreach for arrays inside of an array

		foreach ($decoded_json['MyInternalArrayName'] as $row =>$NextEntry)
		{
				print_r($NextEntry);
				echo "***";
				echo $NextEntry['SomeInnerArrayElementName'];