foreach_books.php

<?php 

	$books = array(
	    'The Hobbit' => array(
	        'published' => 1937,
	        'author' => 'J. R. R. Tolkien',
	        'pages' => 310
	    ),
	    'Game of Thrones' => array(
	        'published' => 1996,
	        'author' => 'George R. R. Martin',
	        'pages' => 835
	    ),
	    'The Catcher in the Rye' => array(
	        'published' => 1951,
	        'author' => 'J. D. Salinger',
	        'pages' => 220
	    ),
	    'A Tale of Two Cities' => array(
	        'published' => 1859,
	        'author' => 'Charles Dickens',
	        'pages' => 544
	    )
	);

		foreach($books as $title => $book) {
			if($book['published']> 1950) {
				echo $title . PHP_EOL;
				foreach ($book as $category => $details) {
					echo $category . ': ' . "$details". PHP_EOL;
				}
				echo "==========" . PHP_EOL;
			}
		}	
 ?>