如何從php搜索mysql

Question

我有一個來自用戶的查詢要在mysql數據庫中搜索

<input type="text" name="query_textbox"><input type="submit" name="search_button">
<?php 
   if (isset($_GET['search_button'])) 
   {
    $query = $_GET['query_textbox'];
    $command = "SELECT * FROM `table` WHERE `ProteinName` LIKE '%$query%';";
    $result = mysql_query($command);
    echo $result;
   }
?>

當我在文本框中輸入“人類”時，它將起作用。 但是，當我搜索“人類蛋白質”時，它會顯示0條結果。 現在的問題是“如果我搜索包含“人蛋白質”等空格的查詢，它應該向我顯示“人蛋白質”，“人”和“蛋白質”的結果。該怎么做？

Answer 1

您可以執行以下操作：

$query = $_GET['query_textbox'];

// explode the query by space (ie "human protein" => "human" + "protein")
$keywords = preg_split("#\s+#", $query, -1, PREG_SPLIT_NO_EMPTY);

// combine the keywords into a string (ie "human" + "protein" => "'%human%' OR '%protein%'")
$condition = "'%" . implode("%' OR '%", $keywords) . "%'";

$command = "SELECT * FROM `table` WHERE `ProteinName` LIKE $condition;";

Answer 2

$query = $_GET['query_textbox'];

// explode the query by space (ie "human protein" => "human" + "protein")
$keywords = explode(" ", $query);

foreach($keywords as $key => $value){
    $condition[] = `ProteinName` LIKE "'%".$value."%'"
}

$cond_str = implode(' OR ', $condition);
$command = "SELECT * FROM `table` WHERE $cond_str;";