循环遍历一个数组，奇怪的输出

Question

我有一个看起来像这样的数组，

    Array
(
    [candidate_id] => 1
    [first_name] => Simon
    [surname] => Ainley
    [gender] => male
    [talent] => presenter
    [DOB] => 1987-06-12
    [Location] => Huddersfield
    [height] => 6' 3"
    [eyes] => blue
    [hair] => brown
    [hair_length] => short
    [accents] => Native english
    [training] => none
    [unions] => Actors guild
    [date_created] => 2011-10-11 00:00:00
)

但是当我不满意时，

<?php foreach ($results as $k => $v) : ?>
    <?php print_r($v); ?>
<?php endforeach; ?>

使用这个我得到输出，

1 S A m p 1 H 6 b b s N n A 2

Answer 1

当您尝试回显一个实际上是字符串的数组元素时会发生这种情况。例如

$string = "hello";
echo $string[1]; // echos "e"

确保$ results的结构符合您的想法，并且您在正确的变量上使用print_r（）。

另请参阅：String access and modification by character ^Docs。