如何在字符串中回显关联数组的元素? [英] How to echo element of associative array in string?

问题描述

我知道这是一个非常基本的问题，但是我不得不问.

I know It's a very basic question but I have to ask.

我有一个关联数组，假设它是:

I have an associative array let's say it is:

 $couple = array('husband' => 'Brad', 'wife' => 'Angelina'); 

现在，我要在字符串中打印丈夫姓名.有很多方法，但是我想这样做，但它会产生html错误

Now, I want to print husband name in a string. There are so many ways but i want to do this way but it gives html error

$string = "$couple[\'husband\'] : $couple[\'wife\'] is my wife.";

如果我对反斜杠使用了错误的语法，请更正我.

Please correct me if I'm using a wrong syntax for backslash.

推荐答案

您的语法正确.

但是，相对于双引号，您仍然更喜欢单引号.

But, still you can prefer single quotes versus double quotes.

因为变量插值，双引号会变慢.

Because, double quotes are a bit slower due to variable interpolation.

(解析双引号中的变量，单引号则不然.)

(variables within double quotes are parsed, not the case for single quotes.)

代码的更优化和更干净的版本:

A more optimized and cleaned version of your code:

$string = $couple['husband'] .' : ' . $couple['wife'] .' is my wife.';

这篇关于如何在字符串中回显关联数组的元素?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！