Question

I want to replace an exact word using preg_replace by \b modifier as mentioned in this question.

But it seems that won’t work for Unicode characters such as Persian and Arabic. This example works:

preg_replace('/(\bto\b|\bis\b)/i', '', 'go to test if var is set using isset')

But this one won’t work:

preg_replace('/(\bاز\b|\bبه\b)/i', '', 'راه مدرسه به خونه از اونجا میگذره')

Is there a way to get the required result, splitting on word boundaries?

Answer 1

Got it myself, have to use \u modifier simply as

preg_replace('/(\bاز\b|\bبه\b)/iu', '', 'راه مدرسه به خونه از اونجا میگذره')