将PHP数组传递给JavaScript函数
将PHP数组传递给JavaScript函数
<html>
<head>
<script type="text/javascript">
function drawChart(row,day,week,month,date)
{
// Some code...
}
</script>
</head>
<body>
<?php for($counter = 0; $counter<count($au); $counter++)
{
switch($au[$counter]->id)
{
case pageID.'/insights/page_active_users/day':
$day[] = $au[$counter]->value;
break;
case pageID.'/insights/page_active_users/week':
$week[] = $au[$counter]->value;
break;
case pageID.'/insights/page_active_users/month':
$month[] = $au[$counter]->value;
break;
}
}
?>
<script>
drawChart(600/50, '<?php echo $day; ?>', '<?php echo $week; ?>', '<?php echo $month; ?>',
'<?php echo createDatesArray(cal_days_in_month(CAL_GREGORIAN, date('m',strtotime('-1 day')),
date('Y',strtotime('-1 day')))); ?>');
</script>
</body></html>
白猪掌柜的浏览 827回答 3
3回答
-
慕仙森
使用杰森.在下面的示例中$php_variable可以是任何PHP变量。<script type="text/javascript"> var obj = <?php echo json_encode($php_variable); ?>;</script>在您的代码中，您可以使用如下代码：drawChart(600/50, <?php echo json_encode($day); ?>, ...)在需要解析JSON-String对象的情况下(如Ajax请求)，安全的方法是使用JSON.parse(..)如下所示：var s = "<JSON-String>";var obj = JSON.parse(s); -
侃侃无极
可以使用以下方法将PHP数组传递给JavaScriptjson_encodePHP函数。<?php $phpArray = array( 0 => "Mon", 1 => "Tue", 2 => "Wed", 3 => "Thu", 4 => "Fri", 5 => "Sat", 6 => "Sun", )?><script type="text/javascript"> var jArray = <?php echo json_encode($phpArray); ?>; for(var i=0; i<jArray.length; i++){ alert(jArray[i]); } </script> -
互换的青春
两个平台之间的数据传输需要一种通用的数据格式。JSON是一种通用的全局格式，用于发送跨平台数据。drawChart(600/50, JSON.parse('<?php echo json_encode($day); ?>'), JSON.parse('<?php echo json_encode($week); ?>'), JSON.parse('<?php echo json_encode($month); ?>'), JSON.parse('<?php echo json_encode(createDatesArray(cal_days_in_month(CAL_GREGORIAN, date('m',strtotime('-1 day')), date('Y',strtotime('-1 day'))))); ?>'))这就是你问题的答案。答案可能看起来非常复杂。您可以看到一个简单的示例，描述服务器端和客户端之间的通信。这里$employee = array( "employee_id" => 10011, "Name" => "Nathan", "Skills" => array( "analyzing", "documentation" => array( "desktop", "mobile" ) ));将数据发送回客户端应用程序(即JavaScript)需要转换为JSON格式。PHP有一个内置函数json_encode()，它可以将任何数据转换为JSON格式。json_encode函数的输出将是如下所示的字符串。{ "employee_id": 10011, "Name": "Nathan", "Skills": { "0": "analyzing", "documentation": [ "desktop", "mobile" ] }}在客户端，成功函数将获得JSON字符串。JavaScript还有JSON解析函数，它可以将字符串转换回JSON对象。$.ajax({ type: 'POST', headers: { "cache-control": "no-cache" }, url: "employee.php", async: false, cache: false, data: { employee_id: 10011 }, success: function (jsonString) { var employeeData = JSON.parse(jsonString); // employeeData variable contains employee array. });
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