How to search word snippet within XML using PHP

Question

I use this code that is to return data related to each searched name, but the query only works if I type a name identica, I wanted to type "Smartphone" and it returns me all the searches that have this flood in the title. Can you help me?

<form method="post" action="<?php echo $_SERVER['PHP_SELF'];?>" >
Nome <input type="text" name="nome" value="" />
<input type="submit" name="submit" />
</form>
<?php
if (isset($_POST['submit'])) {   
   $xml = simplexml_load_file('https://actionpay.net/br-pt/couponFeed/xmlFilter/id:6607');
    $erro = 0;
    foreach ($xml->promotion AS $val) {
        if ($val->title == $_POST['nome']) {
            echo "<div class='single-product'>
                           <div class='product-f-image'>

                              <div class='product-hover'>
                                 <a href='$val->offer_link' class='add-to-cart-link' target='_blank'><img src='$val->logo' alt=''>$val->title</a>
                              </div>
                           </div>

                           <div class='product-carousel-price'>
                              <del></del>  
                           </div>
                        </div>";
            $erro++;
        }
    }
    if ($erro == 0) {
        echo "nenhum valor encontrado";
    }
}
?>

Answer 1

You can use the native function strpos:

if (strpos($val->title, $_POST['nome']) !== false) {
   [seu codigo]
}

strpos

(PHP 4, PHP 5, PHP 7)

strpos - Find the position of the first occurrence of a string

It will search for the word inside the string, and if it does not find anything it returns false. So any result other than false means you have found some result.