PHP code example of remorhaz / php-json-path

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

remorhaz / php-json-path example snippets

use Remorhaz\JSON\Data\Value\EncodedJson;
use Remorhaz\JSON\Data\Value\DecodedJson;

// Creating document from JSON-encoded string:
$encodedValueFactory = EncodedJson\NodeValueFactory::create();
$encodedJson = '{"a":1}';
$document1 = $encodedValueFactory->createValue($encodedJson);

// Creating document from decoded JSON data:
$decodedValueFactory = DecodedJson\NodeValueFactory::create();
$decodedJson = (object) ['a' => 1];
$document2 = $decodedValueFactory->createValue($decodedJson);

use Remorhaz\JSON\Path\Query\QueryFactory;

$queryFactory = QueryFactory::create();

// Creating query that selects all 'a' properties from any document:
$query = $queryFactory->createQuery('$..a');

use Remorhaz\JSON\Path\Processor\Processor;

$processor = Processor::create();

use Remorhaz\JSON\Data\Value\EncodedJson;
use Remorhaz\JSON\Path\Processor\Processor;
use Remorhaz\JSON\Path\Query\QueryFactory;

$processor = Processor::create()
$queryFactory = QueryFactory::create();
$encodedValueFactory = EncodedJson\NodeValueFactory::create();

$document = $encodedValueFactory->createValue('{"a":{"a":1,"b":2}');

// Selecting all 'a' properties (indefinite query, values exist):
$query1 = $queryFactory->createQuery('$..a');
$result1 = $processor->select($query1, $document);
var_dump($result1->select()); // array: ['{"a":1,"b":2}', '1']

// Selecting single 'b' property nested in 'a' property (definite query, value exists):
$query2 = $queryFactory->createQuery('$.a.b');
$result2 = $processor->selectOne($query2, $document);
var_dump($result2->exists()); // boolean: true
var_dump($result2->decode()); // integer: 2

// Selecting single 'b' property (definite query, value doesn't exist):
$query3 = $queryFactory->createQuery('$.b');
$result3 = $processor->selectOne($query3, $document);
var_dump($result3->exists()); // boolean: false
var_dump($result3->decode()); // throws exception

use Remorhaz\JSON\Data\Value\EncodedJson;
use Remorhaz\JSON\Path\Processor\Processor;
use Remorhaz\JSON\Path\Query\QueryFactory;

$processor = Processor::create()
$queryFactory = QueryFactory::create();
$encodedValueFactory = EncodedJson\NodeValueFactory::create();

$document = $encodedValueFactory->createValue('{"a":{"a":1,"b":2}');

// Deleting all 'b' properties (value exists):
$query1 = $queryFactory->createQuery('$..b');
$result1 = $processor->delete($query1, $document);
var_dump($result1->exists()); // boolean: true
var_dump($result1->encode()); // '{"a":{"a":1}}'

// Deleting all 'c' properties (value doesn't exist):
$query2 = $queryFactory->createQuery('$..c');
$result2 = $processor->delete($query2, $document);
var_dump($result1->exists()); // boolean: true
var_dump($result1->encode()); // '{"a":{"a":1,"b":2}}'

// Deleting root of the document:
$query3 = $queryFactory->createValue('$');
$result3 = $processor->delete($query3, $document);
var_dump($result3->exists()); // boolean: false
var_dump($result3->encode()); // throws exception

use Remorhaz\JSON\Data\Value\EncodedJson;
use Remorhaz\JSON\Path\Processor\Processor;
use Remorhaz\JSON\Path\Query\QueryFactory;

$processor = Processor::create()
$queryFactory = QueryFactory::create();
$encodedValueFactory = EncodedJson\NodeValueFactory::create();

$document1 = $encodedValueFactory->createValue('{"a":{"a":1,"b":2}');
$document2 = $encodedValueFactory->createValue('{"c":3}');

// Replacing 'a' property (value exists):
$query1 = $queryFactory->createQuery('$.a');
$result1 = $processor->replace($query1, $document1, $document2);
var_dump($result1->encode()); // string: '{"a":{"c":3}}'

// Replacing all 'c' properties (value doesn't exist)
$query2 = $queryFactory->createQuery('$..c');
$result2 = $processor->replace($query2, $document1, $document2);
var_dump($result2->encode()); // string: '{"a":{"a":1,"b":2}'

// Replacing all 'a' properties (values are nested):
$query3 = $queryFactory->createQuery('$..a');
$result3 = $processor->replace($query3, $document1, $document2); // throws exception