Laravel Checking If a Record Exists

1. How do you find out if a record already exists in a database if it doesn't insert a new record in laravel?
2. How do you find out if a record already exists in a database if it doesn't insert a new record in PHP?
3. Is exist in laravel?
4. Where can I find laravel record?
5. How do you check email is already exist in laravel?
6. How check email ID exist or not in database using AJAX?
7. How do you check if record already exists in SQL?
8. How do you check if a row exists in SQL?
9. How do you check if record not exists in SQL?
10. How do I know if my eloquent is empty?
11. Is empty in laravel?
12. What is Isset in laravel?

How do you find out if a record already exists in a database if it doesn't insert a new record in laravel?

Use the firstOrCreate method for that: $user = User::firstOrCreate(['name' => 'John Doe']); If you want to know whether the user was created or fetched, check the wasRecentlyCreated property: if ($user->wasRecentlyCreated) // "firstOrCreate" didn't find the user in the DB, so it created it.

How do you find out if a record already exists in a database if it doesn't insert a new record in PHP?

SELECT 'This record already exists!' First, we check if the record exists with the EXISTS keyword. EXISTS executes the query we tell it to (the SELECT ) and returns a boolean value. If it finds the record, we return 'This record already exists!'

Is exist in laravel?

In laravel eloquent, has default exists() method, refer followed example. if(User::where('id', $user_id )->exists()) // your code... Use first() , not count() if you only need to check for existence.

Where can I find laravel record?

After configuring the database, we can retrieve the records using the DB facade with select method. The syntax of select method is as shown in the following table. Run a select statement against the database.

How do you check email is already exist in laravel?

Your answer

1. If you want to use the user object if it exists: $user = User::where('email', '=', Input::get('email'))->first(); if ($user === null) // user doesn't exist
2. And if you only want to check if (User::where('email', '=', Input::get('email'))->count() > 0) // user found

How check email ID exist or not in database using AJAX?

php // This is a sample code in case you wish to check the username from a mysql db table if(isset($_POST['email'])) //change isSet to isset (it will not make any difference) $email = mysql_real_escape_string($_POST['email']); //escape the string $dbHost = 'localhost'; // usually localhost $dbUsername = 'root'; $ ...

How do you check if record already exists in SQL?

How to check if a record exists in table in Sql Server

1. Using EXISTS clause in the IF statement to check the existence of a record.
2. Using EXISTS clause in the CASE statement to check the existence of a record.
3. Using EXISTS clause in the WHERE clause to check the existence of a record.

How do you check if a row exists in SQL?

To test whether a row exists in a MySQL table or not, use exists condition. The exists condition can be used with subquery. It returns true when row exists in the table, otherwise false is returned. True is represented in the form of 1 and false is represented as 0.

How do you check if record not exists in SQL?

SQL NOT EXISTS

Therefore, the NOT EXISTS operator returns true if the underlying subquery returns no record. However, if a single record is matched by the inner subquery, the NOT EXISTS operator will return false , and the subquery execution can be stopped.

How do I know if my eloquent is empty?

Check if Eloquent Relationship is Empty

if (is_null($user->mediaProfile)) ... //or $model->relation->count(); //or $model->relation()->exists() //or Model::has('relation')->get() //or if(!

Is empty in laravel?

Starting from Laravel 5.3 you can simply use : if ($mentor->isNotEmpty()) //do something. This is the fastest way: if ($coll->isEmpty()) ...

What is Isset in laravel?

Determine if a variable is considered set, this means if a variable is declared and is different than null . If a variable has been unset with the unset() function, it is no longer considered to be set. isset() will return false when checking a variable that has been assigned to null .