php简易搜索引擎



<?php

$conn = mysqli_connect('127.0.0.1','root','123456');
mysqli_select_db($conn,'hqPro');

if($_GET[key])
{
$arr = explode(' ',$_GET[key]);

$sql = "select * from hq_message where windPow like '%$arr[0]%' or windPow like '%$arr[1]%'";

$res = mysqli_query($conn,$sql);
while($row = mysqli_fetch_array($res))
{
$row[windPow] = preg_replace("/($arr[0])/","<font color='red'><b>\\1</b></font>",$row[windPow]);
$row[windPow] = preg_replace("/($arr[1])/","<font color='red'><b>\\1</b></font>",$row[windPow]);
echo $row[windPow]."<br>";
}
}

?>

<form action="" method="get">
关键字:
<input type="text" name="key"/>
<input type="submit" name="sub" value="全站检索"/>
</form>