each()和list结合遍历数组

<?php
$fruit = array('a' => 'apple', 'b' => 'banana', 'c' => 'cranberry');
reset($fruit);
while (list($key, $val) = each($fruit)) {
    echo "$key => $val\n";
}
?> 

 

上例将输出：

a => apple
b => banana
c => cranberry