search a .txt file

[mkzw0ot4m0nk]

hey im kind of new to php. i was wondering how u can search a txt file to see if a word is in it like if the txt file looked like this..

monkey
donkey
bird
cat
dog

and the person typed monkey then it will return with yes monkey is in the list.

thanks

 

[danielhozac]

This should do it. It's not very effective though.

<?php
if (isset($_GET['string']))
{
    $contents = implode(&quot;&quot;, file(&quot;filename&quot;));
    if (strstr($contents, $_GET['string']))
    {
       echo $_GET['string'] . &quot; was found in the list.&quot;;
    }
}
?>
<form action=&quot;<?=$_SERVER['PHP_SELF']?>&quot; method=&quot;GET&quot;>
Search for: <input type=&quot;text&quot; name=&quot;string&quot; /><br />
<input type=&quot;submit&quot; value=&quot;Search the file&quot; />
</form>

//Daniel

 

[rybo]

Maybe even more interesting is that you could have your text file sorted according to entries and then do a binary search on it each time you wanted to know if the item existed in the file. This way you would have super-fast result times. support@interwebber.com if you are interested in details.