javascript - 如何在javascript中打印php数组

Question

我有一个数组$results，我需要在代码的 javascript 部分中使用它。我尝试了 json_encode() 但它不起作用..

这是代码

<?php
    //...
    include realpath($_SERVER['DOCUMENT_ROOT'] . '/Classes/Controllers/ReportController.php');
    $vaccRep= ReportController::getVacRep();

    include realpath($_SERVER['DOCUMENT_ROOT'] . '/Classes/Controllers/VaccineController.php');
    $names=VaccineController::getVCName();
?>

<canvas id="bar" height="195" width="250" style="width: 250px; height: 195px;"></canvas>
<script>
    //THIS IS THE PART THAT WILL BE THE OTPUT OF THE QUERY

    var barChartData = {
        labels: <?php$obj=json_encode($names); var_dump($obj);?>,
        datasets: [{
            highlightFill: "#45668e",
            highlightStroke: "#45668e",
            fillColor : "#1ABC9C",
            strokeColor : "#1ABC9C",
            data: <?php $obj=json_encode($vaccRep); var_dump($obj);?>
        }]
    };


    new Chart(document.getElementById("bar").getContext("2d")).Bar(barChartData);
    <?php $obj=json_encode($vaccRep); var_dump($obj);?>
</script>

Answer 1

只需使用 json_encode() 在 js 中回显 php 数组，如下所示:

$phpArray = array('name'=>'mani','email'=>'test@gmail.com','mobile'=>'123467890');

PHP 数组看起来像这样

Array
(
    [name] => mani
    [email] => test@gmail.com
    [mobile] => 123467890
)

<script>
var jsArray = [];
var jsArray = <?php echo json_encode($phpArray);?>;
console.log(jsArray);
</script>

您将在控制台中看到此内容

 Object { name="mani",  email="test@gmail.com",  mobile="123467890"}