用&替换最后一个逗号.标志 [英] Replace the last comma with an & sign

问题描述

我到处搜索过，但找不到适合我的解决方案.

I have searched everywhere but can't find a solution that works for me.

我有以下内容:

$bedroom_array = array($studio, $one_bed, $two_bed, $three_bed, $four_bed);

对于此示例，请说:

$studio = '1';
$one_bed = '3';
$two_bed = '3';

然后我使用implode函数在所有值之间放置一个逗号:

I then use the implode function to put a comma in between all the values:

$bedroom_list = implode(", ", array_filter($bedroom_array));
echo $bedroom_list;

然后输出:

1、2、3

我想做的是找到字符串中的最后一个逗号，并用&替换它，因此它将显示为:

What I want to do is find the last comma in the string and replace it with an &, so it would read:

1、2& 3

1, 2 & 3

字符串不一定总是那么长，它可以更短或更长，例如1、2、3、4等.我已经研究过使用substr，但是不确定是否可以满足我的需求?

The string will not always be this long, it can be shorter or longer, e.g. 1, 2, 3, 4 and so on. I have looked into using substr but am not sure if this will work for what I need?

推荐答案

弹出最后一个元素，将其余元素合并在一起，然后再粘贴最后一个.

Pop off the last element, implode the rest together then stick the last one back on.

$bedroom_array = array('studio', 'one_bed', 'two_bed', 'three_bed', 'four_bed');
$last = array_pop($bedroom_array);
$string = count($bedroom_array) ? implode(", ", $bedroom_array) . " & " . $last : $last;

如有必要，将&转换为实体&.

Convert & to the entity & if necessary.

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