jQuery search filtering, client side script. You'll need to add a data-container to the wrapping element which will be hidden on incorrect matches, then a data-filter on the elements where you're looking to match strings with.
$('.your-search-box').keyup(function(event) {
var query = $(this).val().toLowerCase();
var filter = $('[data-filter]');
var container = $('[data-container]');
if ($(this).val().length <= 1) {
$(filter).each(function() {
var item = $(this).text().slice(0, 1).toLowerCase();
if (item != query) {
$(this).closest(container).hide();
} else {
$(this).closest(container).show();
}
});
} else {
$(filter).show();
$(filter).each(function() {
var item = $(this).text().toLowerCase();
if (item.indexOf(query) == -1) {
$(this).closest(container).hide();
} else {
$(this).closest(container).show();
}
});
}
if ($(this).val().length === 0) {
$(filter).show();
$(container).show();
}
});
<input type="search" class="your-search-box" value="Match" />
<div data-container>
<a href="#" data-filter>Match this Text</a>
</div>
<div data-container>
<a href="#" data-filter>Not any of this</a>
</div>