如果在php的字符串之间发现两个空格，如何删除一个空格？

Question

I want to remove one white space if found two white space between phrase in php, I can detect if there is two white space or not, but I can not remove white space, here is how I tried,

 my_doublespace = "Marketing and Sales Staff"; if(strpos($my_doublespace, ' ') > 0){ dd('including double space'); } else{ dd('no double'); } 

I want the result like this "Marketing and Sales Staff", only one white space between "Marketing" and "and". Is there anyway to remove it?

Answer 1

I would do this

$str = preg_replace('/\s{2,}/', ' ', $str);

This will change 2 or more spaces to a single space.

Because, do you want 3 spaces becoming 2, which is the result of some of the other answers.

I would toss a trim() in to the mix for good measure.

You can "roll" your own trim like this:

$str = preg_replace(['/\s{2,}/','/^\s+|\s+$/'],[' ',''], $str);

You can try this live here

Answer 2

Why not use preg_replace ?

Ie

 $my_doublespace = preg_replace('/  /', ' ', $my_doublespace);

Answer 3

str_replace函数也可以正常工作。

$my_doublespace = str_replace('  ', ' ', $my_doublespace);