search - How can ignore accents (intonation) on characters in php? -

I have a text box search form and the word is " Περισσότερα ".

The word " ρισσότ " includes a Greek letter: "ό" .

After clicking on the submit button, click " ρισσότ " and search the program for return results like this:

Πε ρισσότ

When I type the word " ρισσοτ " without the vocal style, my program finds my promise and results in this address It does not run, but does not make it strong.

Περισσότερα σχετικά με την τοποθεσία

How can I make a highlight on the match in my program bold?

My PHP is

  $ search_array = explosion ('', $ search); Forex Currency ($ search_array $ k => $ v) {$ w = trim ($ v); If ($ W) {$ result [$ i] ['description'] = preg_replace ('/ (' preg_quote ($ w, '/') '/ SIU', '.  

after

  $ search_array = explode (', $ search); Forex Currency ($ search_array $ k => $ v) {$ w = trim ($ v); If ($ w) $ result [$ i] ['description'] = '& lt; B & gt; '. $ W. '& Lt; / B & gt; '; }