Полное руководство по Laravel Search

Вы можете найти  метод поиска коллекции внутри  класса  Illuminate\Support\Collection  .

Ларавель поиск

Laravel search() — это встроенный метод коллекций , который используется для поиска в коллекции заданного значения. Если значение присутствует в коллекции, возвращается ключ значения. Если значение не соответствует ни одному элементу,  возвращается false . Поиск осуществляется с использованием «свободного» сравнения, то есть строка с целочисленным значением будет считаться равной целому числу того же значения.

Чтобы использовать «строгое» сравнение, мы должны передать true в качестве второго аргумента метода. 

public function search($value, $strict = false)
{
     if (! $this->useAsCallable($value)) {
         return array_search($value, $this->items, $strict);
     }

     foreach ($this->items as $key => $item) {
         if (call_user_func($value, $item, $key)) {
             return $key;
         }
     }

     return false;
}

Под капотом метод поиска коллекции() вызывает метод array_search()  .

См. следующий пример.

Напишите следующий код в  файле route >> web.php  .

<?php

// web.php

Route::get('/', function () {
    $collection = collect([21, 19, 46, 29]);

    echo $collection->search(19)."\n";

});

Теперь запустите проект laravel, и вы увидите следующий вывод 1. Это означает, что в массиве есть 19, и его ключ равен 1, который возвращается.

Теперь давайте искать со  строгим сравнением. См. следующий код.

<?php

// app.php

Route::get('/', function () {
    $collection = collect([21, 19, 46, 29]);
    echo $collection->search('19', true);
});

Вывод будет ложным, потому что мы ищем  19  как строку, а не целое число, и мы проверяем в строгом режиме, потому что мы передали второй параметр как  истину.

В качестве альтернативы вы можете передать свой обратный вызов для поиска первого элемента, который проходит ваш тест на истинность. Он вернет индекс первого элемента в качестве вывода. См. следующий код.

<?php

// app.php

Route::get('/', function () {
    $collection = collect([19, 21, 46, 29]);
    echo $collection->search(function($item, $key) {
        return $item > 19;
    });
});

В приведенном выше коде мы проверяем, чтобы каждый элемент коллекции был > 19. Теперь 21 — это первый элемент, который > 21, и его индекс равен 1. Таким образом, на выходе будет 1.

Ссылка: https://appdividend.com/2022/06/25/laravel-collections-search/

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Laravel 7 Full Text Search MySQL

Here, I will show you how to create full text search in laravel app. You just follow the below easy steps and create full text search with mysql db in laravel.

Laravel 7 Full Text Search Mysql

Let’s start laravel full-text search implementation in laravel 7, 6 versions:

1. Step 1: Install Laravel New App
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First thing, we will need a table and i am creating products table for this example. So run the following query to create table.

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 `created_at` timestamp NULL DEFAULT CURRENT_TIMESTAMP,
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 PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci

Next, we will need to insert some dummy records in this table that will be deleted.

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Now we are redy to create a model corresponding to this products table. Here we will create Product model. So let’s create a model file Product.php file under app directory and put the code below.

<?php

namespace App;

use Illuminate\Database\Eloquent\Model;

class Product extends Model
{
    protected $fillable = [
        'name','description'
    ];
}

Step 2: Create Route

Now, in this second step we will create some routes to handle the request for this example. So opeen routes/web.php file and copy the routes as given below.

routes/web.php

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Hi Guys,

In this Example,I will learn you how to use autocomplete search with jquery ui in laravel.you can easy and simply use autocomplete serach with jquery ui in laravel.

you can add to text search box then related text to get in your datatable.I show how you add jQuery UI autocomplete to the input field in the Laravel project.

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