$cache[$key] = empty($arr) ? NULL : $arr; return $cache[$key]; } // 门户 获取需要在频道显示的栏目主题数据 function portal_channel_thread($fid) { global $forumlist; if (empty($fid)) return NULL; $orderby = array('tid' => 1); $page = 1; // 遍历所有在频道显示内容的栏目 $category_forumlist = channel_category($fid); $arrlist = array(); $forum_tids = array(); $tidlist = array(); if ($category_forumlist) { foreach ($category_forumlist as &$_forum) { // 频道显示数据 $arrlist['list'][$_forum['fid']] = array( 'fid' => $_forum['fid'], 'name' => $_forum['name'], 'rank' => $_forum['rank'], 'type' => $_forum['type'], 'url' => $_forum['url'], 'channel_new' => $_forum['channel_new'], ); $forum_thread = thread_tid__find(array('fid' => $_forum['fid']), $orderby, $page, $_forum['channel_new'], 'tid', array('tid')); // 最新信息按栏目分组 foreach ($forum_thread as $key => $_thread) { $forum_tids[$key] = $_thread; } unset($forum_thread); } $tidlist += $forum_tids; } unset($category_forumlist); // 获取属性对应的tid集合 list($flaglist, $flagtids) = flag_thread_by_fid($fid); empty($flagtids) || $tidlist += $flagtids; unset($flagtids); // 频道置顶 $stickylist = sticky_list_thread($fid); empty($stickylist) || $tidlist += $stickylist; // 在这之前合并所有二维数组 tid值为键/array('tid值' => tid值) $tidarr = arrlist_values($tidlist, 'tid'); // 在这之前使用$tidarr = array_merge($tidarr, $arr)前合并所有一维数组 tid/array(1,2,3) if (empty($tidarr)) { $arrlist['list'] = isset($arrlist['list']) ? array_multisort_key($arrlist['list'], 'rank', FALSE, 'fid') : array(); return $arrlist; } $tidarr = array_unique($tidarr); $pagesize = count($tidarr); // 遍历获取的所有tid主题 $threadlist = well_thread_find_asc($tidarr, $pagesize); // 遍历时为升序，翻转为降序 $threadlist = array_reverse($threadlist); foreach ($threadlist as &$_thread) { // 各栏目最新内容 isset($forum_tids[$_thread['tid']]) AND $arrlist['list'][$_thread['fid']]['news'][$_thread['tid']] = $_thread; // 全站置顶内容 isset($stickylist[$_thread['tid']]) AND $arrlist['sticky'][$_thread['tid']] = $_thread; // 首页属性主题 if (!empty($flaglist)) { foreach ($flaglist as $key => $val) { if (isset($val['tids']) && in_array($_thread['tid'], $val['tids'])) { $arrlist['flaglist'][$key][array_search($_thread['tid'], $val['tids'])] = $_thread; ksort($arrlist['flaglist'][$key]); $arrlist['flag'][$_thread['tid']] = $_thread; } } } } unset($threadlist); if (isset($arrlist['sticky'])) { $i = 0; foreach ($arrlist['sticky'] as &$val) { ++$i; $val['i'] = $i; } } if (isset($arrlist['flag'])) { $i = 0; foreach ($arrlist['flag'] as &$val) { ++$i; $val['i'] = $i; } } if (isset($arrlist['flaglist'])) { foreach ($arrlist['flaglist'] as &$val) { $i = 0; foreach ($val as &$v) { ++$i; $v['i'] = $i; } } } isset($arrlist['list']) AND $arrlist['list'] = array_multisort_key($arrlist['list'], 'rank', FALSE, 'fid'); return $arrlist; } ?>javascript - How do you replace backslash double quote in a string? - Stack Overflow

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    javascript - How do you replace backslash double quote in a string? - Stack Overflow

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    How do replace backslash double quote (e.g. \") in a string?

    The code below does not work.

    <!DOCTYPE html>
<html>
<head>
</head>
    <script type="text/javascript">

        var myVar = '\"Things You Should Know\"';
        document.write(myVar.replace(/\\\"/g, '|'));
    </script>
<body>
<br>hello
</body>
</html>

    How do replace backslash double quote (e.g. \") in a string?

    The code below does not work.

    <!DOCTYPE html>
<html>
<head>
</head>
    <script type="text/javascript">

        var myVar = '\"Things You Should Know\"';
        document.write(myVar.replace(/\\\"/g, '|'));
    </script>
<body>
<br>hello
</body>
</html>
    • javascript
    Share Improve this question asked Sep 4, 2013 at 19:43 rayray 8,6998 gold badges46 silver badges58 bronze badges 2
    • 1 What you have in your string are simple quotes, so simply use /"/g – Denys Séguret Commented Sep 4, 2013 at 19:46
    • /"/g -- as suggested by Denys Seguret -- is sufficient as goes regular expression syntax. The regular expression in javascript is a tool for searching inside a string. This example looks for a " within the variable's value. The answers below use /\"/g which also works in javascript. It also looks for a ". That backslash is unnecessary in vanilla regular expression syntax. In javascript, both ways work, however. Anyway, to search for a backslash followed by quote, you can use /\\"/g since you must use a backslashed backslash if you want the regular expression to look for a backslash. – Jose_X Commented May 6, 2017 at 23:53
    Add a comment  | 

    5 Answers 5

    Reset to default 8 
    var myVar = '\"Things You Should Know\"';
document.write(myVar.replace(/\"/g, '|'));

    The \ escapes the next character so your string only reads "Things You Should Know"

    Your string doesn't have the sequence backslash double-quote in it. The backslash is an escape character so \" means " (this is useful in strings that are delimited by double quote characters).

    If you did have that sequence in your string (by escaping the backslash characters):

    var myVar = '\\"Things You Should Know\\"';

    … then you could do it with:

    var modifiedString = myVar.replace(/\\"/g, "|");

    myVar.replace(/\\"/g, '|');

    Also, that string you provided didn't have a backslash then a double-quote, it just had a double quote. You escaped the double-quote for nothing.

    Here is working Fiddle

    var myVar = '\"Things You Should Know\"';
var myVar1 = myVar.replace(/\"/g, '|');
alert(myVar1);

    Your variable has no backslashes. \" in a string puts a quote character in the string. Example:

    alert('\"Things You Should Know\"');

    brings up a window that says 

    "Things You Should Know"

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