PHP - “Sal's mall is $emo"vs "Sal's mall is ".$emo - 带引号的字符串连接效率 [英] PHP - "Sal's mall is $emo" vs "Sal's mall is ".$emo - string with quotes concatenation efficiency

问题描述

在 PHP 中，根据资源连接字符串(使用单引号)的更好方法是什么?

In PHP, which is a better way to concatenate strings (with a single-quote) in terms of resources?

"Sal's mall is $emo."

或者:

"Sal's mall is ".$emo.'.'

或者:

'Sal\'s mall is '.$emo.'.'

推荐答案

'Sal\'s mall is '.$emo.'.'

第三种方式效率更高(略).你可以自己做一个循环来测试它:

The third way is more efficient (slightly). You can test it by yourself doing a loop:

for ($i = 0; $i < 100000; $i++) {
    // enter code here 
}

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