php在一个确切的单词上爆炸

Question

Is it possible to have php explode work on an exact word? For example, I wish to split the string:

London Luton to Paris

However, php explode will find the first occurrence of 'to' which is in 'Luton'. This string is also possible:

Paris to London Luton

Which will correctly explode as the 'to' appears first.

Ideally, I wish for the explode to be case insensitive which I believe explode currently is. I figure however that RegEx is probably a better way to go here.

Answer 1

simple solution with preg_split:

$words = preg_split("/\bto\b/iu", "London Luton to Paris");
var_dump($words);

// the output:
array (size=2)
    0 => string 'London Luton ' (length=13)
    1 => string ' Paris' (length=6)