我有一个看起来像这样的foreach循环，
<?php $current_question = "";
foreach ($question_and_answers as $qa) : ?>
<?php $current_question == $qa['current_question']; ?>
<?php if($current_question == $current_question) : ?>
<input type="text" name="question[]" value="<?php echo $qa['question']; ?>"/>
<?php endif; ?>
<?php endforeach; ?>
我想在每次循环遇到一个新问题时创建一个输入字段（一个问题会返回多次，因为一个问题可以有很多答案）。我所做的事似乎不起作用。
我认为看到我使用的数组有帮助，
Array
(
[0] => Array
(
[question_id] => 2
[question] => What is my name?
[tests_test_id] => 2
[answer_id] => 5
[answer] => Simon
[questions_question_id] => 2
[correct] => true
)
[1] => Array
(
[question_id] => 2
[question] => What is my name?
[tests_test_id] => 2
[answer_id] => 6
[answer] => Dave
[questions_question_id] => 2
[correct] => false
)
[2] => Array
(
[question_id] => 2
[question] => What is my name?
[tests_test_id] => 2
[answer_id] => 7
[answer] => Fred
[questions_question_id] => 2
[correct] => false
)
[3] => Array
(
[question_id] => 2
[question] => What is my name?
[tests_test_id] => 2
[answer_id] => 8
[answer] => John
[questions_question_id] => 2
[correct] => false
)
[4] => Array
(
[question_id] => 3
[question] => What is my surname?
[tests_test_id] => 2
[answer_id] => 9
[answer] => Crawford
[questions_question_id] => 3
[correct] => true
)
[5] => Array
(
[question_id] => 3
[question] => What is my surname?
[tests_test_id] => 2
[answer_id] => 10
[answer] => Caine
[questions_question_id] => 3
[correct] => false
)
[6] => Array
(
[question_id] => 3
[question] => What is my surname?
[tests_test_id] => 2
[answer_id] => 11
[answer] => Rooney
[questions_question_id] => 3
[correct] => false
)
[7] => Array
(
[question_id] => 3
[question] => What is my surname?
[tests_test_id] => 2
[answer_id] => 12
[answer] => Ainley
[questions_question_id] => 3
[correct] => false
)
[8] => Array
(
[question_id] => 4
[question] => What is my favourite colour?
[tests_test_id] => 2
[answer_id] => 13
[answer] => Blue
[questions_question_id] => 4
[correct] => true
)
[9] => Array
(
[question_id] => 4
[question] => What is my favourite colour?
[tests_test_id] => 2
[answer_id] => 14
[answer] => Yellow
[questions_question_id] => 4
[correct] => false
)
[10] => Array
(
[question_id] => 4
[question] => What is my favourite colour?
[tests_test_id] => 2
[answer_id] => 15
[answer] => Green
[questions_question_id] => 4
[correct] => false
)
[11] => Array
(
[question_id] => 4
[question] => What is my favourite colour?
[tests_test_id] => 2
[answer_id] => 16
[answer] => Red
[questions_question_id] => 4
[correct] => false
)
[12] => Array
(
[question_id] => 5
[question] => Who do I support?
[tests_test_id] => 2
[answer_id] => 17
[answer] => Huddersfield Town
[questions_question_id] => 5
[correct] => true
)
[13] => Array
(
[question_id] => 5
[question] => Who do I support?
[tests_test_id] => 2
[answer_id] => 18
[answer] => Leeds United
[questions_question_id] => 5
[correct] => false
)
[14] => Array
(
[question_id] => 5
[question] => Who do I support?
[tests_test_id] => 2
[answer_id] => 19
[answer] => Manchester United
[questions_question_id] => 5
[correct] => false
)
[15] => Array
(
[question_id] => 5
[question] => Who do I support?
[tests_test_id] => 2
[answer_id] => 20
[answer] => Wolverhampton Wanderes
[questions_question_id] => 5
[correct] => false
)
)
我正在尝试做什么，遍历数组，每当我遇到一个新问题时，我想要输出一个带有问题值的文本输入。
答案 0 :(得分：0)
试试这个。
<?php $current_question = "";
foreach ($question_and_answers as $qa) : ?>
<?php if($current_question == $qa['current_question']) : ?>
<input type="text" name="question[]" value="<?php echo $qa['question']; ?>"/>
<?php $current_question = $qa['current_question']; ?>
<?php endif; ?>
<?php endforeach; ?>
答案 1 :(得分：0)
您的代码非常奇怪，您可能有理由以这种方式编写代码，但让我重写它以便我可以更好地查看：
$current_question = '';
foreach($questions_and_answers as $qa){
$current_question == $qa['current_question'];
if($current_question == $current_question){ ?>
<input type="text" name="question[]" value="<?php echo $qa['question']; ?>"/>
<? }
}
我看到了几个错误：
$current_question == $qa['current_question'];什么都不做，这是一个有条件的，会返回true或false，但它不会返回任何东西。我认为你已经把这个与定义混为一谈：$current_question = $qa['current_question']; $current_question == $current_question;将始终返回1，因为它是相同的变量。我认为您正在尝试将其与$qa['current_question'] 这应该是你要找的东西：
$current_question = '';
foreach($questions_and_answers as $qa)
if($current_question == $qa['current_question']){ ?>
<input type="text" name="question[]" value="<?php echo $qa['question']; ?>"/>
<? }
或者在您的代码中：
<?php $current_question = "";
foreach ($question_and_answers as $qa) : ?>
<?php if($current_question == $qa['current_question']) : ?>
<input type="text" name="question[]" value="<?php echo $qa['question']; ?>"/>
<?php endif; ?>
<?php endforeach; ?>
然而，这仍然很奇怪，因为您将$current_question定义为空字符串，因此仅当$qa['current_question']为空时才会运行条件。但是你的问题太模糊了，看不出你的意思。