Question

try {
  $keyword = trim($_GET["keyword"]);
  if ($keyword <> "" ) {
    $sql = "SELECT * FROM tbl_contacts WHERE 1 AND "
            . " (first_name LIKE :keyword) ORDER BY first_name "; 
    $stmt = $DB->prepare($sql);

    $stmt->bindValue(":keyword", $keyword."%");

  } else {
    $sql = "SELECT * FROM tbl_contacts WHERE 1 ORDER BY first_name ";
    $stmt = $DB->prepare($sql);
  }

我需要使用first_name，last_name，middle_name，contact_no1 fields

进行多次搜索

Answer 1

如果您想使用所有字段进行搜索，请在WHERE中使用OR添加字段：

try {
  $keyword = trim($_GET["keyword"]);
  if ($keyword <> "" ) {
    $sql = "SELECT * FROM tbl_contacts WHERE 1 AND "
            . " (first_name LIKE :keyword OR last_name LIKE :keyword OR middle_name LIKE :keyword OR contact_no1 LIKE :keyword) ORDER BY first_name "; 
    $stmt = $DB->prepare($sql);

    $stmt->bindValue(":keyword", $keyword."%");

  } else {
    $sql = "SELECT * FROM tbl_contacts WHERE 1 ORDER BY first_name ";
    $stmt = $DB->prepare($sql);
  }

Answer 2

public function search($requestArray){
$sql = "";
if( isset($requestArray['firstname']) && isset($requestArray['lastname']) )  $sql = "SELECT * FROM `tbl_contacts` WHERE AND (`first_name` LIKE '%".$requestArray['search']."%' OR `last_name` LIKE '%".$requestArray['search']."%')";
if(isset($requestArray['firstname']) && !isset($requestArray['lastname']) ) $sql = "SELECT * FROM `tbl_contacts` WHERE `first_name` LIKE '%".$requestArray['search']."%'";
if(!isset($requestArray['firstname']) && isset($requestArray['lastname']) )  $sql = "SELECT * FROM `tbl_contacts` WHERE `last_name` LIKE '%".$requestArray['search']."%'";

$STH  = $this->DBH->query($sql);
$STH->setFetchMode(PDO::FETCH_OBJ);
$someData = $STH->fetchAll();

return $someData;

}

我在我的一个项目中使用此方法进行两个字段的搜索，希望它可以帮到你。其中$ requestArray将从表单和'firstname'获取数据，'lastname'是数组的两个键，您将进入搜索框并提交搜索。我刚刚在这里向您展示了查询样式，在此之前您需要修改值。

如何创建多个搜索？

2 个答案: