wordpress search for only single category

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I am creating a news website at index page i listed all news by categories i created 1 more category for one of my news section that is recipes now what i want is i am creating a search
form for that section only that filter the search for only recipe category,how can i do that i wanted to know basically i created a normal search.php page as per wordpress standard code
that filter news from through out the theme.
please help me out.

here is a code in form page:

<div class="search_box">
           <form method="get" id="searchform" action="<?php echo esc_url( home_url( '/' ) ); ?>">  
              <div class="input-group">
                      <input type="text" class="form-control search-bar eng my_control" name="s" id="search" placeholder="<?php echo esc_attr_x( 'Search &hellip;', 'placeholder', 'dastak' ); ?>" value="<?php echo esc_attr( get_search_query() ); ?>" onfocus="if(this.value==this.defaultValue)this.value='';" onblur="if(this.value=='')this.value=this.defaultValue;"/>
                      <span class="input-group-btn">
                        <input type="submit" class="search-submit btn my-btn" value="<?php echo esc_attr_x( 'Search', 'submit button', 'dastak' ); ?>">
                        <!-- <button class="btn my-btn"  id="searchsubmit"  type="button"><span class="glyphicon glyphicon-search"></span></button> -->
                      </span>
              </div><!--input group-->

              </form> 
       </div><!--search box-->


<div class="clearfix"></div>
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2 comments

  1. You could implement a function to catch the search but defining the category in the category__in array.

    global $wp_query;
if(is_search()) :
    $cat = array(
        'category__in' => array(5) // Where 5 is the ID of your Music category
    );
$args = array_merge( $wp_query->query, $cat );
endif;
query_post($args);

    OR

    You could do it this way through the hidden field – value 22 is the category

    <form method="get" id="search form" action="/">
<div>
<input type="text" value="" name="s" id="s" />
<input type="hidden" value="22" name="cat" id="scat" />
<input type="submit" id="search_submit" name="Search" value="Search"/>
</div>
</form>