Answers for "how to check if the string is available in php"

php find if substring is in string

$result = strpos("haystack", "needle");

if ($result != false)
{
  // text found
}

check string in php

$names = array("Maria", "Jhon", "John", 777, "Michael");

    foreach ($names as $check) {
        if(is_string($check)) {
            echo "This is a string: ". $check. "<br>";
        } else {
            echo "This is not a string: ".$check. "<br>";
        }
    }

// using foreach and is_string menthods
// If you want to check an array if it contains number or not