te')); return $arr; } /* 遍历用户所有主题 * @param $uid 用户ID * @param int $page 页数 * @param int $pagesize 每页记录条数 * @param bool $desc 排序方式 TRUE降序 FALSE升序 * @param string $key 返回的数组用那一列的值作为 key * @param array $col 查询哪些列 */ function thread_tid_find_by_uid($uid, $page = 1, $pagesize = 1000, $desc = TRUE, $key = 'tid', $col = array()) { if (empty($uid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('uid' => $uid), array('tid' => $orderby), $page, $pagesize, $key, $col); return $arr; } // 遍历栏目下tid 支持数组 $fid = array(1,2,3) function thread_tid_find_by_fid($fid, $page = 1, $pagesize = 1000, $desc = TRUE) { if (empty($fid)) return array(); $orderby = TRUE == $desc ? -1 : 1; $arr = thread_tid__find($cond = array('fid' => $fid), array('tid' => $orderby), $page, $pagesize, 'tid', array('tid', 'verify_date')); return $arr; } function thread_tid_delete($tid) { if (empty($tid)) return FALSE; $r = thread_tid__delete(array('tid' => $tid)); return $r; } function thread_tid_count() { $n = thread_tid__count(); return $n; } // 统计用户主题数 大数量下严谨使用非主键统计 function thread_uid_count($uid) { $n = thread_tid__count(array('uid' => $uid)); return $n; } // 统计栏目主题数 大数量下严谨使用非主键统计 function thread_fid_count($fid) { $n = thread_tid__count(array('fid' => $fid)); return $n; } ?>javascript - JSON object value from PHP - Stack Overflow

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    javascript - JSON object value from PHP - Stack Overflow

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    I am using JSON in PHP, and now I need to access it from JavaScript. How do I pass a JSON object to JavaScript?

    <?php
    $array = array("a"=>"Caucho", "b"=>"Resin", "c"=>"Quercus");
    $json = json_encode($array);
>

    where My.js has:

    showAll(){
    alert("Show All Json Objects");
    // How do I get the JSON value here?
}

    How can I do it?

    I am using JSON in PHP, and now I need to access it from JavaScript. How do I pass a JSON object to JavaScript?

    <?php
    $array = array("a"=>"Caucho", "b"=>"Resin", "c"=>"Quercus");
    $json = json_encode($array);
>

    where My.js has:

    showAll(){
    alert("Show All Json Objects");
    // How do I get the JSON value here?
}

    How can I do it?

    • php
    • javascript
    • ajax
    • json
    Share Improve this question edited Apr 19, 2013 at 1:48 Peter Mortensen 31.6k22 gold badges110 silver badges133 bronze badges asked Jan 20, 2009 at 7:05 venkatachalamvenkatachalam 102k31 gold badges74 silver badges77 bronze badges
    Add a ment  | 

    3 Answers 3

    Reset to default 6

    Assuming that you're using Ajax as your method to download the JSON, you would echo the result of the json_encode:

    <?php
    $array = array("a"=>"Caucho", "b"=>"Resin", "c"=>"Quercus");

    echo json_encode($array);
?>

    And then within your call back event, you'd eval the response:

    var obj = eval('(' + req.ResponseText + ')');
for(var i in obj) {
    alert(i + ': ' + obj[i]);
}

    Assuming that you have an XMLHttpRequest object with the name req.

    <?php
$array = array("a"=>"Caucho", "b"=>"Resin", "c"=>"Quercus");
$json = json_encode($array);
?>
<script type="text/javascript">
var myjson = <?php echo $json; ?>;
</script>

    You could request the JSON data with AJAX or you could pass the data from PHP to JavaScript as a JavaScript variable:

    $array = array("a"=>"Caucho", "b"=>"Resin", "c"=>"Quercus");
$json = json_encode($array);

echo '<script type="text/javascript">';
echo 'var myJson = "' . $json . '";';
echo '</script>';

    edit: you have to eval the json string, otherwise you will just have a string not a object...

    Off course keeping in mind all the guidelines about mixing PHP/HTML/JavaScript...

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