尝试将 json 编码数组从 php 发送到 js 文件，"Unexpected end of input"

Question

所以每当我按下按钮时，我都会尝试将对象数组发送到js函数。

<button onclick="actualizarProcesos(<?php echo json_encode($p_array)?>);">X</button>

我已经确保我的json不会发送任何奇怪的字符，因为除了对象属性"name"是字符串之外，它大多是int。

该函数在另一个js文件中：

function actualizarProcesos(p_array){
var p = JSON.parse(p_array);
}

目前，我正在尝试发送，以确保函数正在接收数据，但它一直抛出错误Uncaught SyntaxError: Unexpected end of input。因此，我一直在努力找出如何修复错误。

之后，我计划使用ajax将该数组发送到另一个php文件，类似于以下内容：

$.ajax({
type: "POST",
url: "post.php",
data: JSON.stringify(values),
success: function(data){
alert(data)
}
});

这是我试图发送的完整json

[{"name":"A","t_arrival":7,"t_est":25,"state":1,"pages":5,"mem_data":[[1,8,13,5,0,1],[0,0,0,0,0,0],[1,11,17,3,1,1],[1,12,16,4,0,1],[0,0,0,0,0,0]],"t_rem":25,"t_wait":0,"rem_quantum":0},{"name":"B","t_arrival":6,"t_est":13,"state":2,"pages":4,"mem_data":[[0,0,0,0,0,0],[1,9,16,5,0,1],[1,7,14,6,1,0],[0,0,0,0,0,0]],"t_rem":13,"t_wait":0,"rem_quantum":0},{"name":"C","t_arrival":8,"t_est":37,"state":3,"pages":3,"mem_data":[[1,9,12,2,0,0],[0,0,0,0,0,0],[1,13,21,7,0,1]],"t_rem":37,"t_wait":0,"rem_quantum":0}]

Answer 1

我已经确保我的json不会发送任何奇怪的字符，因为除了对象属性"name"是字符串之外，它大多是int。

JSON中的字符串用"字符分隔。

<button onclick="actualizarProcesos(<?php echo json_encode($p_array)?>);">X</button>

您的HTML属性值由"字符分隔。

数据中的"将截断属性值。

您需要对数据进行编码(使用htmlspecialchars(以嵌入HTML:

<?php echo htmlspecialchars(json_encode($p_array)); ?>

Answer 2

你可以用这种方式

<p id="test" style="display:none"><?php echo json_encode($p_array); ?></p>
<button onclick="actualizarProcesos(test)" id="">X</button>
<script src="https://code.jquery.com/jquery-1.9.1.min.js"></script>
<script>
function actualizarProcesos(test){
var p_array = $('#test').html();
var p = JSON.parse(p_array);
alert(p);

}

Answer 3

测试工作良好。希望这对你有所帮助。

<?php 
$p_array = [
[
"name" => "A", 
"t_arrival" => 7, 
"t_est" => 25, 
"state" => 1, 
"pages" => 5, 
"mem_data" => [
[
1, 
8, 
13, 
5, 
0, 
1 
], 
[
0, 
0, 
0, 
0, 
0, 
0 
], 
[
1, 
11, 
17, 
3, 
1, 
1 
], 
[
1, 
12, 
16, 
4, 
0, 
1 
], 
[
0, 
0, 
0, 
0, 
0, 
0 
] 
], 
"t_rem" => 25, 
"t_wait" => 0, 
"rem_quantum" => 0 
], 
[
"name" => "B", 
"t_arrival" => 6, 
"t_est" => 13, 
"state" => 2, 
"pages" => 4, 
"mem_data" => [
[
0, 
0, 
0, 
0, 
0, 
0 
], 
[
1, 
9, 
16, 
5, 
0, 
1 
], 
[
1, 
7, 
14, 
6, 
1, 
0 
], 
[
0, 
0, 
0, 
0, 
0, 
0 
] 
], 
"t_rem" => 13, 
"t_wait" => 0, 
"rem_quantum" => 0 
], 
[
"name" => "C", 
"t_arrival" => 8, 
"t_est" => 37, 
"state" => 3, 
"pages" => 3, 
"mem_data" => [
[
1, 
9, 
12, 
2, 
0, 
0 
], 
[
0, 
0, 
0, 
0, 
0, 
0 
], 
[
1, 
13, 
21, 
7, 
0, 
1 
] 
], 
"t_rem" => 37, 
"t_wait" => 0, 
"rem_quantum" => 0 
] 
]; 
$p_array = json_encode($p_array);
?>
<button onclick='actualizarProcesos(<?php echo $p_array ?>)' >X</button>
<script>
function actualizarProcesos(arr){
console.log(arr);
}
</script>