Question

How to check if a string contains identical digits in PHP

Answer 1

function isStringContainIdenticalDigits($str) {
    $set = array_unique(str_split($str));
    
    return count($set) === 1;
}

$str = "8888888";

if (isStringContainIdenticalDigits($str)) {
    echo "yes";
} else {
    echo "no";
}




/*
run:

yes

*/

 

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