blocks|key|528274|text|试试这个，先做json_decode()，然后得到secondLast，然后做strstr()，在逗号之后得到值，do+ltrim()就是这样。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|528275|$str+=+'["theme","1,strand","Medical+Ethics+and+Law,strandyear","Year+3"]';
echo+$str;
$array+=+json_decode($str);
$secondLast+=+$array[2];//count($array)-2
echo'<pre>';print_r($array);
echo+$secondLast.'<pre>';
echo+ltrim(strstr($secondLast,+','),',');
die;|code-block|syntax|javascript|528276|产出：|528277|["theme","1,strand","Medical+Ethics+and+Law,strandyear","Year+3"]

Array
(
++++[0]+=>+theme
++++[1]+=>+1,strand
++++[2]+=>+Medical+Ethics+and+Law,strandyear
++++[3]+=>+Year+3
)
Medical+Ethics+and+Law,strandyear

strandyear|528278|entityMap^0|7|D|P|A|13|8|1O|7|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]|$9|V|A|W|B|C]|$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|Z|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|10|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|11|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|P|$]]

Try This,
First do <code>json_decode()</code>
then get <code>secondLast</code> then do <code>strstr()</code> to get value after comma and the do <code>ltrim()</code> thats it.

<pre><code>$str = '["theme","1,strand","Medical Ethics and Law,strandyear","Year 3"]';
echo $str;
$array = json_decode($str);
$secondLast = $array[2];//count($array)-2
echo'&lt;pre&gt;';print_r($array);
echo $secondLast.'&lt;pre&gt;';
echo ltrim(strstr($secondLast, ','),',');
die;
</code></pre>

OUTPUT:

<pre><code>["theme","1,strand","Medical Ethics and Law,strandyear","Year 3"]

Array
(
 [0] =&gt; theme
 [1] =&gt; 1,strand
 [2] =&gt; Medical Ethics and Law,strandyear
 [3] =&gt; Year 3
)
Medical Ethics and Law,strandyear

strandyear
</code></pre>

blocks|key|528280|text|获取数组中的第二个最后值的最佳方法|type|unstyled|depth|inlineStyleRanges|entityRanges|data|528281|end($array);
$second_last+=+prev($array);|code-block|syntax|javascript|528282|之后，您无法得到第二部分，即您可以使用的逗号后面的值。|528283|explode(separator,string)+//function+in+PHP

$temp=+explode(',',+$second_last);//converted+to+an+array
$second_part=$temp[1];|528284|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Best way to get the second last value in the array

<pre><code>end($array);
$second_last = prev($array);
</code></pre>

after that you cant get the second part i.e the value after comma you can use 

<pre><code>explode(separator,string) //function in PHP

$temp= explode(',', $second_last);//converted to an array
$second_part=$temp[1];
</code></pre>

blocks|key|1342113|text|那下面呢..。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1342114|$secondLast+=+array_slice($source,+-2,+1);|code-block|syntax|javascript|1342115|切片函数可以在一行代码中完成这项工作。|offset|length|1342116|然后你从原来的数组中得到最后一个条目，现在你可以用逗号打开字符串了。|1342117|$parts+=+explode(",",+$secondLast);
$strand+=+array_pop($parts);|1342118|第一行用逗号爆炸字符串。第二行给出了所有爆炸部件的最后一部分(链)。|1342119|entityMap|0|LINK|mutability|MUTABLE|url|https://www.php.net/manual/en/function.array-slice.php^0|0|0|0|2|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Z|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|10|8|@]|9|@$I|11|J|12|1|13]]|A|$]]|$1|K|3|L|5|6|7|14|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|15|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|16|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|17|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]]]

What about the following ...

<pre><code>$secondLast = array_slice($source, -2, 1);
</code></pre>

The PHP function <a href="https://www.php.net/manual/en/function.array-slice.php" rel="nofollow noreferrer">array_slice</a> can do the job in one line of code.

Then you 've got the second last entry from the original array. Now you can explode the string with a comma.

<pre><code>$parts = explode(",", $secondLast);
$strand = array_pop($parts);
</code></pre>

The first line explodes the string by a comma. The second line gives you the last part (strand) of all exploded parts.

blocks|key|528312|text|<?php
$a+=+["theme","1,strand","Medical+Ethics+and+Law,strandyear","Year+3"];
$b+=+explode(',',$a[1]);
$c+=+$b[1];

var_dump($c);
//+tring(6)+"strand"|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|528313|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>&lt;?php
$a = ["theme","1,strand","Medical Ethics and Law,strandyear","Year 3"];
$b = explode(',',$a[1]);
$c = $b[1];

var_dump($c);
// tring(6) "strand"
</code></pre>

blocks|key|1972550|text|使用爆炸分解|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1972551|返回一个字符串数组，每个字符串都是在字符串分隔符形成的边界上拆分字符串所形成的字符串的子字符串。|blockquote|1972552|用法：explode+(+string+$delimiter+,+string+$string+[,+int+$limit+=+PHP_INT_MAX+]+)+:+array|style|CODE|1972553|$arr+=+Array("theme","1,strand","Medical+Ethics+and+Law,strandyear","Year+3");
$secondValueAfterComma+=+explode(',',$arr[2]);
echo+$secondValueAfterComma[1];|code-block|syntax|javascript|1972554|entityMap|0|LINK|mutability|MUTABLE|url|https://www.php.net/manual/en/function.explode.php^0|4|2|0|0|0|3|2C|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@$A|Y|B|Z|1|10]]|C|$]]|$1|D|3|E|5|F|7|11|8|@]|9|@]|C|$]]|$1|G|3|H|5|6|7|12|8|@$A|13|B|14|I|J]]|9|@]|C|$]]|$1|K|3|L|5|M|7|15|8|@]|9|@]|C|$N|O]]|$1|P|3|-4|5|6|7|16|8|@]|9|@]|C|$]]]|Q|$R|$5|S|T|U|C|$V|W]]]]

Use explode <a href="https://www.php.net/manual/en/function.explode.php" rel="nofollow noreferrer">explode</a>

<blockquote>
 Returns an array of strings, each of which is a substring of string
 formed by splitting it on boundaries formed by the string delimiter.
</blockquote>

usage: <code>explode ( string $delimiter , string $string [, int $limit = PHP_INT_MAX ] ) : array</code>

<pre><code>$arr = Array("theme","1,strand","Medical Ethics and Law,strandyear","Year 3");
$secondValueAfterComma = explode(',',$arr[2]);
echo $secondValueAfterComma[1];
</code></pre>

blocks|key|1972600|text|你也许会喜欢|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1972601|$arr+=+["theme","1,strand","Medical+Ethics+and+Law,strandyear","Year+3"];|code-block|syntax|javascript|1972602|下面是访问第二个最后一个元素的代码|1972603|$value+=+$arr[count($arr)-2];|1972604|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You may do like 

<pre><code>$arr = ["theme","1,strand","Medical Ethics and Law,strandyear","Year 3"];
</code></pre>

Here is your code to access 2nd last element

<pre><code>$value = $arr[count($arr)-2];
</code></pre>

I have the following array:

<pre><code>["theme","1,strand","Medical Ethics and Law,strandyear","Year 3"]
</code></pre>

How can I extract the second last value in the array, then the second part of that value after the comma e.g. "Medical Ethics and Law,strandyear"? 

This should result, for example, in 'strandyear'.

The actual value, not the position from the end, will be different for other arrays.

PHP 5.3.3...

PHP - Extract second last value in array

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

我有以下数组：["theme","1,strand","Medical Ethics and Law,strandyear","Year 3"]如何提取数组中的第二个最后值，然后在逗号后面提取该值的第二部分。“医学伦理与法律，绞刑年”？例如，这应该会导致“strand放年”。对于其他数组，实际值(而不是末尾的位置)将有...

问提取数组中的第二个最后值
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问提取数组中的第二个最后值EN