php中的foreach循环构造javascript答案

【问题标题】：foreach loop in php to construct javascriptphp中的foreach循环构造javascript
【发布时间】：2011-06-11 02:24:22
【问题描述】：

我将在 php 中构建一个弹出式 javascript，如下所示：

$popup_title = array(); 
$popup_text = array(); 
$popup_time = array();
$popup_delay = array(); 

array_push($popup_title, T_gettext("Ready for ..."));
array_push($popup_text, "<a href=\"x.php\">".T_gettext("Click here to...")."</a>"); 
array_push($popup_time, 3000);  
array_push($popup_delay, 6000);

在这里我制作了 javascript 代码：

if(!empty($popup_title)){
//constuct javascript

$popups = array();
foreach ( $popup_title as $key => $title )
{
    $popups[$key] = new stdClass();
    $popups[$key]->title = $title;
}
foreach ( $popup_text as $key => $text )
{
    $popups[$key]->text = $text;
}
foreach ( $popup_time as $key => $time )
{
    $popups[$key]->time = $time; 
}
//print javascript
echo "
<script type=\"text/javascript\">
$(document).ready(function(){"; 
foreach ( $popups as $popup ):
echo "
    setTimeout(function() {
        $.gritter.add("; echo json_encode($popup); echo ");
    }, ".($popup_delay");"; // <---------Here I need to place popup_delay 
    endforeach;
echo "  
});
</script>";

这给出了这个 javascript 例如：

<script type="text/javascript">
$(document).ready(function(){
    setTimeout(function() {
        $.gritter.add({"title":"Ready for..","text":"<a href=\"x.php\">Click here to...<\/a>","time":3000});
    }, 0);  
});
</script>

我不习惯 foreach。 for 循环会是这样的： for($n=0; $n < count($popup_delay); $n++){ echo $popup_delay[$n]; } ，但是当我已经使用来自foreach ( $popups as $popup ): 的json_encode($popup) 时，如何使用foreach 遍历$popup_delay 值

【问题讨论】：

JSON 将其解码回 PHP 数组？ php.net/manual/en/function.json-decode.php
可以嵌套foreach语句

标签： php javascript arrays loops foreach

【解决方案1】：

您只需要为您的阵列使用一个键。因此，您可以像这样创建一个多维数组，而不是在 PHP 中创建多个数组：

$javascript_array = array();
$javascript_array[0]['title'] = "Ready for ...";
$javascript_array[0]['text'] = "Click here to...";
$javascript_array[0]['time'] = 3000;
$javascript_array[0]['delay'] = 6000;

您的数组将显示为：

if ( !empty ( $javascript_array ) ) {
// dump in your <script> piece here
    foreach ( $javascript_array as $js_entry ) {
// put in your filler pieces here
        echo "Title: ".$js_entry['title'];
        echo "Text: ".$js_entry['text'];
        echo "Time: ".$js_entry['time'];
        echo "Delay: ".$js_entry['delay']; 
   } // end foreach
// closed </script> 
}

【讨论】：