<?php
function xrange($start, $end) {
    for ($i = $start; $i <= $end; $i ++) {
        yield $i;
    }
}
foreach (xrange(0, 5) as $i) {
    echo $i, "\n";
}

<?php
function logger($fileName) {
    $fileHandle = fopen($fileName, 'a');
    while (true) {
        fwrite($fileHandle, yield . "\n");
    }
}

$logger = logger(__DIR__ . '/log');
$logger->send('Foo');
$logger->send('Bar');

<?php
$db = mysqli_connect();
try {
   call_some_function($db);
} finally {
   mysqli_close($db);
}

<?php
$names = [ ['John','Smith'], ['Fred','Johnson'] ];
foreach($names as list($first,$last)) { 
    echo $first,$last; 
}

<?php
echo array(1, 2, 3)[0]; //output 1
echo "foobar"[3]; //output b
echo [1,3,4][2]; //output 4

<?php
// Hash
$hash = password_hash("super secret",PASSWORD_BCRYPT);

// To validate $pwd against the stored hash
if (password_verify($pwd, $hash)) {
    echo 'Password is valid!';
} else {
    echo 'Invalid password.';
}