find if a word or substring exist based on php array

 <?php

$acctname = array(

    "Nash_paid",

    "Nash_Orange",

    "Sagi_Orange",

    "Sagu_paid",

    "Red_Phone",

    "Main_Paid",

    "Abi_Orange",

    "Abi_paid",

    "Repeated client_",

    "Meni_Road",

    "Meni_Towing",

    "Main_line");

$string="Red_Phone";

foreach($acctname as $substring){

if (stripos($string, $substring) !== false) {

echo  "$substring<br>";

}

}

?>