php - Separate space-delimited words in a string

Question

i have a text string in the following format $str= "word1 word2 word3 word4 "

So i want to seperate each word from the string.Two words are seperated by a blank space How do i do that. IS there any built in function to do that?

Answer 1

The easiest would be to use explode:

$words = explode(' ', $str);

But that does only accept fixed separators. split an preg_split do accept regular expressions so that your words can be separated by multiple spaces:

$words = split('s+', $str);
// or
$words = preg_split('/s+/', $str);

Now you can additionally remove leading and trailing spaces with trim:

$words = preg_split('/s+/', trim($str));