How to create filter for a search in php
Question
I have this issue with php. What I want to do, is to have a search engine with three filters: search by title, description and price. This is my index html.
<form style="text-align:center;" method="get" action="search.php">
<label>
Search
<input type="text"name="keywords" autocomplete="off">
</label>
<input type="submit" value="Search"><br>
</form>
By using action method I'm calling search.php file.
if(isset($_GET['keywords'])) {
$keywords = $db->escape_string($_GET['keywords']);
$query = $db->query("SELECT title, description, price FROM products WHERE title LIKE '%{$keywords}%' OR description LIKE '%{$keywords}%' OR price LIKE '%{$keywords}%'");
}
Not it combines all of the results to one, because I'm using same variable keywords. The problem now is that I don't have a filter, because I'm not sure how to create it. Maybe I would like to have a dropdown select with those three options: title, description, price. But I don't know how to make my php code to see which one is selected. Or maybe there is a better solution for my idea? Should I use different variables like keyword was or what?
3 answers
solution1
1 2017-11-25 14:18:58
Yes. You have to add a select to limit field of search:
<form style="text-align:center;" method="get" action="search.php">
<label>
Search
<input type="text"name="keywords" autocomplete="off">
</label>
<select name="field">
<option value="title">title</option>
<option value="description">description</option>
<option value="prcie">price</option>
</select>
<input type="submit" value="Search"><br>
</form>
and php:
if(isset($_GET['keywords']) && isset($_GET['field'])) {
$keywords = $db->escape_string($_GET['keywords']);
$sql="SELECT title, description, price FROM products WHERE ". $_GET['field'] ." like '%{$keywords}%'" ;
$query = $db->query($sql);
}
Besides You have to protect your code from injection.
solution2
1 ACCPTED 2017-11-25 14:22:27
that's ver simple.. add a select tag. here's an example.
<!doctype html>
<html>
<head>
<title>filter</title>
</head>
<body>
<form method="post" action="test1.php">
<select name="keywords" >
<option value="title">title</option>
<option value="description">description</option>
<option value="price">price</option>
</select>
<input type="submit">
</form>
<?php print_r($_POST);
if(isset($_GET['keywords'])) {
$keywords = $db->escape_string($_GET['keywords']);
$query = $db->query("SELECT title, description, price FROM products WHERE '%{$keywords}%' LIKE '%{$keywords}%' ");
}
?>
<br>
</body>
</html>
solution3
1 2017-11-25 14:24:58
Split the input string to single keywords with explode function
$keywords = "world word2";
$keywords_arr = explode(" ",$keywords);
echo $keywords_arr[0];
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