Keskustelu: Koodit: PHP: Hakukone

<?php

//*******************************************************
//paikallinen haku
$localsearch = 0;

//jos paikallinen haku on päällä, listaa tiedostot joista haetaan
$files = array();
$files[] = "index.php";
$files[] = "muuta.php";
$files[] = "linkit.php";
$files[] = "palaute.php";
//*******************************************************

$caps = $_GET['caps'];

$keyword = $_GET['keyword'];
$keyword = str_replace(" ", "", $keyword);

$target = $_GET['target'];
$target = str_replace("http://", "", $target);

?>

<form method="get" action="<?php echo $_SERVER['PHP_SELF']; ?>">
Hakusana: <input type="text" name="keyword" size="24" value="<?php if ( $keyword != null ) { echo $keyword; } else { echo ""; } ?>" />

<?php if ( $localsearch == 0 ) { ?>
<br />Kohde: <input type="text" name="target" size="35" value="<?php if ( $target != null ) { echo "http://$target"; } else { echo "http://"; } ?>" />
<?php } ?>

<br />Sama kirjainkoko: <input type="checkbox" name="caps" value="yes" <?php if ( $caps == "yes" ) { echo "checked=\"checked\""; } ?> /> Kyllä
<br /><input type="submit" name="submit" value="Hae" />
</form>

<?php

if ( $keyword != null )
{



function search($target, $keyword, $caps)
{
	$file = file("$target");

	for ( $i=0; $i<count($file); $i++ )
	{
		$file[$i] = str_replace("<", " <", $file[$i]);
		$file[$i] = str_replace(">", "> ", $file[$i]);
		$file[$i] = str_replace(".", " ", $file[$i]);
		$file[$i] = str_replace(",", " ", $file[$i]);
		$file[$i] = str_replace("\"", " ", $file[$i]);
		$file[$i] = str_replace("/", " ", $file[$i]);
		$file[$i] = str_replace("(", " ", $file[$i]);
		$file[$i] = str_replace(")", " ", $file[$i]);
		$file[$i] = str_replace("[", " ", $file[$i]);
		$file[$i] = str_replace("]", " ", $file[$i]);
		$file[$i] = str_replace("!", " ", $file[$i]);
		$file[$i] = str_replace("?", " ", $file[$i]);
		$file[$i] = str_replace("-", " ", $file[$i]);

		$data[$i] = preg_replace("/\r\n|\n\r|\n|\r/", "", $file[$i]);
		$word = explode(" ", $data[$i]);

		for ( $j=0; $j<count($word); $j++ )
		{
			if ( $caps == "yes" )
			{
				if ( $keyword == $word[$j] )
				{
				return true;
				}
			}
			else
			{

				if ( strtolower($keyword) == strtolower($word[$j]) )
				{
				return true;
				}
			}
		}
	}
	return false;
}


if ( $localsearch == 1 )
{
	$fresult = 0;
	for ( $i=0; $i<count($files); $i++ )
	{
		$result = search($files[$i], $keyword, $caps);


		if ( $result == true )
		{
			$fresult = 1;
			echo "<p>Hakusana \"$keyword\" löydettiin tiedostosta <a href=\"$files[$i]\" target=\"new\">$files[$i]</a>.</p>\n";
		}
	}
	if ( $fresult == 0 )
	{
		echo "<p>Hakusana \"$keyword\" ei löytynyt mistään tiedostosta.</p>\n";
	}
}
else
{

	$result = search("http://$target", $keyword, $caps);

	if ( $result == true )
	{
		echo "<p>Hakusana \"$keyword\" löydettiin osoitteesta <a href=\"http://$target\" target=\"new\">http://$target</a>.</p>\n";
	}
	else
	{
		echo "<p>Hakusana \"$keyword\" ei löytynyt osoitteesta <a href=\"http://$target\" target=\"new\">http://$target</a>.</p>\n";
	}
}



}

?>