循環通過陣列，奇怪的輸出

Question

我有一個數組，看起來像這樣，

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 
) 

然而，當我穿上之後，

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

使用此我得到的輸出，

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

Answer 1

當你嘗試回顯一個實際上是字符串的數組元素時，會發生這種情況。例如。

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

確保的$結果的結構是什麼，你認爲這是你正在使用的print_r（）在正確的變量。另外：String access and modification by character ^Docs。