If attribute value equals to... show something - php

Question

I'm working on something on wordpress + woocommerce.
I've inputed some 'filter' attributes value for some products.
So if the value of the attribute for this product includes a "Wood Grains" value, i want to echo an Woodgrains.jpg on the front end.
Therefore if the value = Texture, i want to echo Texture.jpg icon.
the code below is what i've mustered so far, but this only echoes out all the values tagged to a product, i can't figure out what to change to get the 'if' statement in it.
$terms = get_the_terms( $product->id, 'pa_filter');
foreach ( $terms as $term ) {
echo $term->name;
}
here's a screenshot of what the code above does on the front end:
http://edleuro.com/new/wp-content/themes/mystile/img/1.png

Answer 1

If this returns an array of terms for the said product:
$terms = get_the_terms( $product->id, 'pa_filter');
You can check if the returned result array has what you are looking for by doing this:
if (in_array("Wood Grains", $terms))
{
// has it
}
else
{
// doesn't have it
}
Update
Based in your reply to my answer, I have came up with the following:
Create a helper function like this:
function termExists($myTerm, $terms)
{
if (is_array($terms)) {
foreach ($terms as $id => $data) {
if ($data->name == $myTerm)
return true;
}
}
return false;
}
Then you use it like this:
if (termExists('Wood Grains', get_the_terms($product->id, 'pa_filter')))
{
// term exists
}
else
{
// does not exists
}

Answer 2

i found a better way to resolve my problem. i had this in my content-product.php woocommerce template.
<?php
$terms = get_the_terms( $product->id, 'pa_filter');
foreach($terms as $term){
if($term->name == 'Wood Grains'){
echo '<img src="icon_woodgrains.gif">';
}
}
?>
do take note that the term name is case sensitive.

Answer 3

foreach prints Warning: invalid argument supplied for foreach()…
This works for me "on a purely":
if ( is_product() && has_term( 'Wood Grains', 'pa_filter' )) {
echo '<img src="Texture.jpg">';
}