Get sql data using search box in wordpress - php

Question

What I want to do is using search box to find data in WordPress database and display it in a page,using contact form 7. I upload data in a wp database. I use some PHP code to display data in a page and it works, but I don't know how to do it using a search box.
<?php
global $wpdb;
$result = $wpdb->get_results("SELECT * FROM it_testtable");
echo "ID"." "."Name"."<br><br>";
foreach($result as $row)
{
echo $row->id." ".$row->name."<br>";
}
?>
I want when I enter the an id I get names. Please help me. Thank you.

Answer 1

Step 1 Add the following to your Header.php file
<div class="header-search"><?php get_search_form();?></div>
Step 2 Add the following to your Style.css file
.header-search{display:none}
#media screen and (min-width:600px){
.header-search{
display:block;
float:right;
margin-top:0px;
margin-right:3px;
}
}
Show search query in search box
If you have just performed a search, you can show the last query in the search box:
<form method="get" id="searchform" action="<?php bloginfo('url'); ?>/">
<div>
<input type="text" value="<?php the_search_query(); ?>" name="s" id="s" />
<input type="submit" id="searchsubmit" value="Search" />
</div>
</form>
Show search query in results page
You can display the search string on search result pages
<p>You searched for "<?php echo esc_html( get_search_query( false ) ); ?> ". Here are the results:</p>
for reference: About search box query
You can go either this or other option,because there is only name
and ID in your row
$mylink = $wpdb->get_row( "SELECT * FROM {$wpdb->links} WHERE link_id
= 10" );
Else if you want to show it generically,
$fivesdrafts = $wpdb->get_results(
"SELECT link_ID,name FROM {$wpdb->links} WHERE link_ID = 5"
);
foreach ( $fivesdrafts as $fivesdraft )
{
echo $fivesdraft->name;
}