Check if word is inside a group of words

This question already has an answer here:

How do I check if a string contains a specific word? 37 answers

---

<?php
 $os = array("Mac", "NT", "Irix", "Linux");
 if (in_array("Irix", $os)) {
echo "Got Irix";
  }
  if (in_array("mac", $os)) {
   echo "Got mac";
  }
  ?>

http://php.net/manual/en/function.in-array.php

---

You can combine the in_array and explode functions

echo ((in_array($searchTerm, explode(",", $cities)))?"Yes":"No");

or if you want a more readable version

$resultArray = explode(",", $cities);
$result = (in_array($searchTerm, $resultArray);
if ($result) {
   echo "Yes"
} else {
   echo "No";
}

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