php - 将 MySQL 数据编码为 JSON

Question

谁能告诉我为什么这不起作用。我想我确实看过所有谈论这个的视频和网页，但我得到的仍然是一个空白页面，我尝试了很多不同的方法。这是我的代码。回显时屏幕只是空白。我正在使用 PHP 5.6

    //header('Content-Type: application/json');
include_once('../db.php');

$sql = "SELECT * FROM `blog` ORDER BY `id` ASC";


$result = mysqli_query($conn, $sql);
$array = array();
while($row = mysqli_fetch_array($result)) {
    $array[] = ['id' => $row['id'], 'title'=> $row['title'], 'date' => $row['date'], 'header' => $row['header'], 'content'=> $row['content']];
}
//print_r($array);
echo json_encode($array);
//print_r($array);
echo count($array);

mysqli_close($conn);

如果您想查看结果，网站是 http://bit.ly/1iAMnot

这是 print_r 所说的。我只打算放一个数组，因为有多个数组。

Array
(
    [0] => 1
    [id] => 1
    [1] => Explore More
    [title] => Explore More
    [2] => 2015-08-22 11:58:46
    [date] => 2015-08-22 11:58:46
    [3] => http://passionla.com/img/blog/explore-more.jpg
    [header] => http://passionla.com/img/blog/explore-more.jpg
    [4] => "For since the creation of the world God's invisible qualities--his eternal power and divine nature--have been clearly seen, being understood from what has been made, so that people are without excuse."
<br /><br />
- Romans 1:2
<br /><br />
The world around us is amazing. If you have recently seen a sunset or even just the wind blow through the leaves, causing them to rustle on the tree, you have witnessed just a piece of God's divine masterpiece that we can see in nature. 
<br /><br />
His beauty is all around you. Like the verse from romans says, His eternal power and divine nature are seen clearly in his creation. It is easy to get caught up in our busy lives and never look around.
<br /><br />
You don't have to go far to see god's magnificence. Take some time today to sit outside, to take a hike, or go for a walk with the intent of seeing God's majesty. Remember to take a second to look around and appreciate the glorious god that created you. 
<br /><br />
Explore more, He's created a big world out there.
    [content] => "For since the creation of the world God's invisible qualities--his eternal power and divine nature--have been clearly seen, being understood from what has been made, so that people are without excuse."
<br /><br />
- Romans 1:2
<br /><br />
The world around us is amazing. If you have recently seen a sunset or even just the wind blow through the leaves, causing them to rustle on the tree, you have witnessed just a piece of God's divine masterpiece that we can see in nature. 
<br /><br />
His beauty is all around you. Like the verse from romans says, His eternal power and divine nature are seen clearly in his creation. It is easy to get caught up in our busy lives and never look around.
<br /><br />
You don't have to go far to see god's magnificence. Take some time today to sit outside, to take a hike, or go for a walk with the intent of seeing God's majesty. Remember to take a second to look around and appreciate the glorious god that created you. 
<br /><br />
Explore more, He's created a big world out there.
)

Answer 1

试试这个:

$array = array();
while($row = mysqli_fetch_array($result)) {
    $array[] = ['id' => $row['id'], 'title'=> $row['title'], 'date' => $row['date'], 'header' => $row['header'], 'content'=> $row['content']];
}
echo json_encode($array);