php - laravel 5 搜索多个字段

Question

我在多个搜索字段中有一个 php 代码，但我不知道如何在 laravel 中使用此功能

laravel 中的 mysql 语法在简单的 php 中并不相同，所以我如何编译它。

if(isset($_GET['submit'])) {
// define the list of fields
      if(isset($_GET['debit']) && !empty($_GET['debit'])) {

    $_GET['valeur'] = - $_GET['debit'];
  }
  else
  {
    if(isset($_GET['credit']) && !empty($_GET['credit']))
    {
        $_GET['valeur'] = $_GET['credit'];
    }
  }
    $fields = array('id_type', 'date_operation', 'date_valeur', 'numero','tiers','description','valeur');
    $conditions = array();


// builds the query
$query = "SELECT * FROM ecritures WHERE id_compte ='" . $iduser . "' ";


// loop through the defined fields
foreach($fields as $field){
    // if the field is set and not empty
    if(isset($_GET[$field]) && !empty($_GET[$field])) {
        // create a new condition while escaping the value inputed by the user (SQL Injection)
        $conditions[] = "$field LIKE '%" . mysqli_real_escape_string($co, $_GET[$field]) . "%'";
        }
    }


// if there are conditions defined
if(count($conditions) > 0) {
    // append the conditions
    $query .= " AND " . implode (' AND ', $conditions); // you can change to 'OR', but I suggest to apply the filters cumulative
}}

Answer 1

Laravel 中的查询构建器使这种查询比像您的代码那样手动创建 SQL 查询要容易得多。

所以这段代码应该适合你:

$q = DB::table('ecritures ')->where('id_compte', $iduser);


// loop through the defined fields
foreach($fields as $field){
    // if the field is set and not empty
    if(isset($_GET[$field]) && !empty($_GET[$field])) {
        // create a new condition
        $q = $q->where($field, 'LIKE', '%' . $_GET[$field] . '%');
    }
}

$result = $q->get();

foreach ($result as $row) {
    echo $row->column_name;
}

我还省略了 escape 函数，因为 Laravel 会为您处理。