使用PHP语言将所有空格和特殊符号替换为URL中的破折号

Question

How to replace spaces and dashes when they appear together with only dash in PHP?

e.g below is my URL

http://kjd.case.150/1 BHK+Balcony- 700+ sqft. spacious apartmetn Bandra Wes

In this I want to replace all special characters with dash in PHP. In the URL there is already one dash after "balcony". If I replace the dash with a special character, then it becomes two dashes because there's already one dash in the URL and I want only 1 dash.

Answer 1

If there could be max one space surrounding the hyphen you can use the answer by John. If there could be more than one space you can try using preg_replace:

$str = preg_replace('/\s*-\s*/','-',$str);

This would replace even a - not surrounded with any spaces with - !!

To make it a bit more efficient you could do:

$str = preg_replace('/\s+-\s*|\s*-\s+/','-',$str);

Now this would ensure a - has at least one space surrounding it while its being replaced.