What are the ways to remove spaces in strings in php

php methods to remove spaces in strings are: 1. Regular expressions, such as [preg_replace('# #', '', 'ab ab');]; 2. str_replace() function; 3. strtr() function.

The operating environment of this article: windows10 system, php 7, thinkpad t480 computer.

In PHP we have many ways to clear spaces, such as regular expressions, str_replace() function, strtr() function, etc. When we use these methods, we will find that removing spaces from strings is a very simple matter.

Let’s take a look at how these methods remove spaces from strings.

The first one is regular:

The second one uses str_replace() function:

The third way to use the strtr() function:

The strtr() function is a bit special to use, essentially:

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