how to search using a textfield? php [closed] - php

Question

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.
Closed 8 years ago.
This question appears to be off-topic because it lacks sufficient information to diagnose the problem. Describe your problem in more detail or include a minimal example in the question itself.
Questions asking for code must demonstrate a minimal understanding of the problem being solved. Include attempted solutions, why they didn't work, and the expected results. See also: Stack Overflow question checklist
Improve this question
I want to search a whole news feed by inserting a word in my text field. I have no idea how to do this. Here is my code, so you know what I mean with it.
<form action="search.php" method="get">
<tr><th>search: </th><td><input type="text" name="search" value="{$word}"></td></tr>
</form>
How can I check if the word I inserted in the searchbar, exists somewhere in the news feed?
My news feed is used like this:
$xml=simplexml_load_file("newsfeed.xml");
foreach($xml->channel->item as $item) {
echo '<h1 class="title">' . $item->title . '</h1>';
echo '<p class="desc">'.$item->description."</p>";
}

Answer 1

I think you can use the function strpos.
Find the numeric position of the first occurrence of needle in the
haystack string.
Example:
$a = 'Long text to look into it.'
if (strpos($a, 'it') !== false)
echo 'true';
In your case, you can use strpos either to find the word in the item title or the item description:
$a = $_GET['search'];
foreach($xml->channel->item as $item) {
print_result = 0; // flag to know if the search is in the feed.
if (strpos($item->description, $a) !== false){
print_result = 1;
} // end if desc
if (strpos($item->title, $a) !== false){
print_result = 1;
} // end if title
if(print_result == 1){
echo '<h1 class="title">' . $item->title . '</h1>';
echo '<p class="desc">'.$item->description."</p>";
} //end if print results.
} // end foreach

Answer 2

I would make a foreach like you do it now:
And make kind of relevance points for each news item. Something like if it's in the title then it's more relevant and if it's at the beginning and so on.
Then you can write it into an array and sort it.
I hope you have something like an id in your newsfeed.xml for this.