Welcome to collectivesolver - Programming & Software Q&A. A website you can trust. All programs tested and work.


Instant Grammar Checker - Correct all grammar errors and enhance your writing
BlueHost Web Hosting

Profollica™ is a standout product in the hair regrowth industry.

New Arrival!  Shop NOW for metal eyeglasses at GlassesShop.com!

Bonsai Boy of New York Bonsai Trees and Accessories

DreamCloud The Comfortable Luxury Mattress Ecommerce Software - Best Ecommerce Platform Made for You - Free Trial

DreamHost Web Hosting

Disclosure We are a professional Programming & Software Q&A website, that receives compensation from some of the links whose we show you with Information. It means that my content may contain affiliate links.

14,729 questions

19,877 answers

573 users

How to check if a string contain only three same repeating characters in PHP

1 Answer

0 votes
function contain_only_three_same_repeating_chars($s) {  
    $len = strlen($s);
    if ($len % 3 != 0) {
        return false;
    for ($i = 0; $i < $len - 3; $i++) {  
         if ($s[$i] != $s[$i + 3]) {  
             return false;  
    return true;  
$s = "wpowpowpowpowpo"; 
if (contain_only_three_same_repeating_chars($s)) {
    echo "Yes"; 
else {
    echo "No"; 


answered Jan 9 by avibootz