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laravel where json array contains
To check if a JSON array contains a specific value in Laravel, you can use the whereJsonContains
method provided by Laravel’s Query Builder.
Assuming you have a table named my_table
with a JSON column named my_column
, and you want to find all rows where the my_column
JSON array contains the value {"key": "value"}
, you can use the following code:
php$results = DB::table('my_table') ->whereJsonContains('my_column', ['key' => 'value']) ->get();
The whereJsonContains
method takes two parameters: the name of the JSON column, and an array of key-value pairs representing the JSON object or array to search for.
In this example, we’re searching for the key-value pair {"key": "value"}
in the my_column
JSON array.
Note that whereJsonContains
only works with MySQL 5.7.8 or later, PostgreSQL 9.3 or later, and SQLite 3.9.0 or later. If you’re using an older version of one of these databases, you may need to upgrade to use this method.
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Laravel JSON Array Validation – Example & Important Tips
How to get data from JSON array?
To extract data from a JSON array, you can use a programming language that supports JSON, such as JavaScript, Python, Java, or PHP. Here’s an example in JavaScript:
javascript// Example JSON array let jsonArray = [ {"name": "John", "age": 30}, {"name": "Jane", "age": 25}, {"name": "Bob", "age": 40} ]; // Accessing data from the JSON array console.log(jsonArray[0].name); // Output: John console.log(jsonArray[1].age); // Output: 25 console.log(jsonArray[2].name + " is " + jsonArray[2].age + " years old."); // Output: Bob is 40 years old.
In this example, the jsonArray
variable contains an array of JSON objects. To access the data in the JSON objects, you can use dot notation or bracket notation to specify the index of the object in the array and the name of the property you want to access. For example, jsonArray[0].name
accesses the name
property of the first object in the array, which is "John"
. Similarly, jsonArray[1].age
accesses the age
property of the second object in the array, which is 25
.
How to store values in JSON array?
To store values in a JSON array, you can follow these steps:
-
Define an array object in JSON format by enclosing a list of values in square brackets [ ].
-
Within the array object, you can add any valid JSON data types such as strings, numbers, objects, or even other arrays.
-
To add a value to the array, you can use the push() method in JavaScript, which adds the value to the end of the array.
Here’s an example of how to store values in a JSON array using JavaScript:
sql// create an empty array let myArray = []; // add values to the array myArray.push("apple"); myArray.push(3); myArray.push(true); // output the array console.log(myArray);
Output:
javascript["apple", 3, true]
In the example above, we first created an empty array called myArray
. We then added three values to the array using the push() method: a string “apple”, a number 3, and a boolean value true. Finally, we logged the array to the console, which displays the values in the array as a JSON array.
How to store array in JSON format in laravel?
To store an array in JSON format in Laravel, you can use the json_encode()
function provided by PHP. Laravel also provides a json()
method that can be used to convert arrays and objects to JSON.
Here’s an example of how to store an array in JSON format using Laravel:
php// Define the array $data = ['name' => 'John Doe', 'age' => 30]; // Convert the array to JSON using json_encode() $jsonData = json_encode($data); // Store the JSON data in a file $file = storage_path('app/data.json'); file_put_contents($file, $jsonData);
In the above example, we define an array $data
and then convert it to JSON format using the json_encode()
function. We then store the JSON data in a file using the file_put_contents()
function.
Alternatively, we can use Laravel’s json()
method to convert the array to JSON format:
php// Define the array $data = ['name' => 'John Doe', 'age' => 30]; // Convert the array to JSON using Laravel's json() method $jsonData = json($data); // Store the JSON data in a file $file = storage_path('app/data.json'); file_put_contents($file, $jsonData);
In this example, we use Laravel’s json()
method to convert the array to JSON format before storing it in a file.
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MySQL JSON array contains
In MySQL, you can use the JSON_CONTAINS
function to check if a JSON array contains a specific value or another JSON object.
Here’s the basic syntax of the JSON_CONTAINS
function:
scssJSON_CONTAINS(json_doc, val[, path])
json_doc
is the JSON document or JSON column to search.val
is the value or JSON object to search for.path
is an optional parameter that specifies the path to search within the JSON document.
Here are some examples of how to use the JSON_CONTAINS
function to check if a JSON array contains a specific value:
graphqlSELECT JSON_CONTAINS('["apple", "banana", "orange"]', '"banana"'); -- Returns 1 (true) SELECT JSON_CONTAINS('["apple", "banana", "orange"]', '"pear"'); -- Returns 0 (false)
You can also use the JSON_CONTAINS
function to check if a JSON array contains another JSON object:
jsonSELECT JSON_CONTAINS('[{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]', '{"name": "John", "age": 30}'); -- Returns 1 (true) SELECT JSON_CONTAINS('[{"name": "John", "age": 30}, {"name": "Jane", "age": 25}]', '{"name": "John"}', '$.name'); -- Returns 1 (true)
In the second example, the path
parameter is used to search for the “name” property within each object in the JSON array.
Laravel json to array
In Laravel, you can easily convert a JSON string to an array using the json_decode()
function.
Here’s an example:
php$jsonString = '{"name":"John","age":30,"city":"New York"}'; $array = json_decode($jsonString, true); print_r($array);
Output:
csharpArray ( [name] => John [age] => 30 [city] => New York )
In this example, we first define a JSON string. We then pass this string to the json_decode()
function along with the second parameter set to true
, which tells the function to return an associative array instead of an object. Finally, we print the resulting array using the print_r()
function.
Note that if the JSON string is invalid, the json_decode()
function will return null
. You can use the json_last_error()
function to check for errors.
You can see some more information related to laravel where json array contains here
- Laravel Eloquent JSON Contains, how to provide WhereIn …
- How to search in JSON field Laravel Eloquent – TL Dev Tech
- 12.18.3 Functions That Search JSON Values
- How to read parse JSON array using Java – Tutorialspoint
- JSON Array – Javatpoint
- How to Store JSON in Database Laravel 9 – Dev Genius
- How to Read and Print Pretty JSON With PHP – Linux Hint
- JSON_ARRAY_CONTAINS_
- json_encode – Manual – PHP
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