Ecosyste.ms: Packages

An open API service providing package, version and dependency metadata of many open source software ecosystems and registries.

packagist.org "schema" keyword

Top 8.1% on packagist.org
shopsys/migrations v14.0.0
Symfony bundle providing commands for transactional Doctrine database migrations
66 versions - Latest release: 11 days ago - 15 dependent packages - 15 dependent repositories - 150 thousand downloads total - 3 stars on GitHub - 4 maintainers
folha/json-schema 1.5.0
A library to validate a json schema.
18 versions - Latest release: over 8 years ago - 149 downloads total - 0 stars on GitHub - 3 maintainers
systopia/opis-json-schema-ext v0.5.0
Extension for Opis JSON Schema
7 versions - Latest release: about 1 month ago - 2 dependent repositories - 3.52 thousand downloads total - 0 stars on GitHub - 3 maintainers
Top 6.0% on packagist.org
concrete5/doctrine-xml 1.3.0
Define database structure via XML using Doctrine data types
5 versions - Latest release: almost 2 years ago - 2 dependent packages - 55 dependent repositories - 219 thousand downloads total - 11 stars on GitHub - 2 maintainers
Top 1.1% on packagist.org
league/json-guard 1.0.1
A validator for JSON using json-schema.
14 versions - Latest release: about 7 years ago - 37 dependent packages - 88 dependent repositories - 1.5 million downloads total - 175 stars on GitHub - 2 maintainers
phlib/schemadiff 2.0.1
Schema Diff: Show difference between MySQL databases
6 versions - Latest release: 7 months ago - 4.31 thousand downloads total - 4 stars on GitHub - 2 maintainers
kalani/validation-rule-generator v0.2.0
Laravel 4 class to automatically generate validation rules based on table schema
2 versions - Latest release: about 5 years ago - 4 dependent repositories - 1.04 thousand downloads total - 7 stars on GitHub - 2 maintainers
okvpn/migration-bundle v2.1.3
Database Schema migrations using Doctrine
13 versions - Latest release: over 4 years ago - 2 dependent packages - 2.4 thousand downloads total - 3 stars on GitHub - 2 maintainers
shrink0r/php-schema 0.3.0
Lib for building and validating array structures in php.
3 versions - Latest release: over 7 years ago - 2 dependent packages - 4 dependent repositories - 803 downloads total - 9 stars on GitHub - 2 maintainers
jelix/database v1.3.2
Lightweight PHP abstraction layer to access and query SQL databases, with an API to inspect and m...
12 versions - Latest release: 2 months ago - 1 dependent package - 3 dependent repositories - 1.75 thousand downloads total - 0 stars on GitHub - 2 maintainers
Top 6.6% on packagist.org
umbrellio/laravel-pg-extensions 7.0.1
Extensions for Postgres Laravel
63 versions - Latest release: 15 days ago - 2 dependent packages - 2 dependent repositories - 273 thousand downloads total - 85 stars on GitHub - 2 maintainers
gointegro/json v0.9.16
GOintegro JSON Lib
4 versions - Latest release: over 9 years ago - 6 dependent packages - 7 dependent repositories - 8.95 thousand downloads total - 1 stars on GitHub - 2 maintainers
Top 3.1% on packagist.org
mageplaza/magento-2-seo-extension 4.3.1
Magento 2 SEO extension
38 versions - Latest release: 2 months ago - 2 dependent packages - 8 dependent repositories - 374 thousand downloads total - 134 stars on GitHub - 2 maintainers
concretecms/doctrine-xml 1.3.0
Define database structure via XML using Doctrine data types
5 versions - Latest release: almost 2 years ago - 1 dependent package - 1 dependent repositories - 31.5 thousand downloads total - 11 stars on GitHub - 2 maintainers
Top 0.1% on packagist.org
doctrine/doctrine-migrations-bundle 3.3.1 💰
Symfony DoctrineMigrationsBundle
42 versions - Latest release: 3 days ago - 489 dependent packages - 30,732 dependent repositories - 120 million downloads total - 4,153 stars on GitHub - 2 maintainers
scherersoftware/cakephp-schema v1.0.1
Schema saving and loading from file for CakePHP 3.0
4 versions - Latest release: almost 8 years ago - 1 dependent package - 1 dependent repositories - 11.2 thousand downloads total - 1 stars on GitHub - 2 maintainers
Top 0.5% on packagist.org
opis/json-schema 2.3.0
Json Schema Validator for PHP
26 versions - Latest release: over 2 years ago - 134 dependent packages - 308 dependent repositories - 15.3 million downloads total - 530 stars on GitHub - 2 maintainers
umbrellio/laravel-postgres-driver 7.0.1
Extensions for Postgres Laravel
63 versions - Latest release: 15 days ago - 17 downloads total - 84 stars on GitHub - 2 maintainers
Top 2.8% on packagist.org
aura/sqlschema 2.0.3
Provides facilities to read table names and table columns from a database using PDO.
5 versions - Latest release: about 8 years ago - 9 dependent packages - 19 dependent repositories - 198 thousand downloads total - 41 stars on GitHub - 2 maintainers
avaibooksports/doctrine-migrations-multiple-database-bundle 0.4.1
Symfony DoctrineMigrationsMultipleDatabaseBundle
10 versions - Latest release: 11 months ago - 1 dependent repositories - 353 thousand downloads total - 35 stars on GitHub - 2 maintainers
withcandour/aardvark-seo 3.0.1
Save time and get your Statamic site to rank better - Candour's SEO addon for Statamic CMS
33 versions - Latest release: 4 months ago - 2 dependent repositories - 76.3 thousand downloads total - 10 stars on GitHub - 2 maintainers
Top 5.6% on packagist.org
tarantool/mapper 6.1.0
PHP Object Mapper for Tarantool.
225 versions - Latest release: 4 days ago - 3 dependent packages - 4 dependent repositories - 47.2 thousand downloads total - 68 stars on GitHub - 2 maintainers
simplethings/solr-bundle 1.0.1
Solr Bundle
2 versions - Latest release: over 6 years ago - 4 dependent repositories - 33 downloads total - 5 stars on GitHub - 2 maintainers
yaroslavsagun/laravel-attributes
Rinvex Attributes is a robust, intelligent, and integrated Entity-Attribute-Value model (EAV) imp...
Latest release: 18 days ago - 5 downloads total - 0 stars on GitHub - 1 maintainer
phonetworks/pho-compiler 💰
Compiles GraphQL schema into PHP classes for use in Pho stack.
Latest release: 1 day ago - 2 dependent repositories - 76 downloads total - 0 stars on GitHub - 1 maintainer
gordinskiy/symfony-json-schema v0.0.1
Generate JSON Schema from Symfony constraints
1 version - Latest release: 7 months ago - 2 downloads total - 0 stars on GitHub - 1 maintainer
dev-lnk/laravel-code-builder v1.0.1
Generate classes and files from table schema
11 versions - Latest release: 4 days ago - 39 downloads total - 10 stars on GitHub - 1 maintainer
gpupo/common-schema 6.3.0
Common schema
46 versions - Latest release: over 3 years ago - 9 dependent packages - 13 dependent repositories - 6.07 thousand downloads total - 0 stars on GitHub - 1 maintainer
orisai/nette-object-mapper 0.1.0
Orisai Object Mapper integration for Nette
1 version - Latest release: 11 months ago - 1 dependent repositories - 20.5 thousand downloads total - 3 stars on GitHub - 1 maintainer
suren/laravel-mongo-model-schema
Make mongo data saving and retrieving match defined schemas for Laravel. Support nested data model.
Latest release: 16 days ago - 1 dependent repositories - 2.38 thousand downloads total - 7 stars on GitHub - 1 maintainer
eloquent/schemer 0.3.3
Generic schema validation library for PHP, based on JSON Schema.
6 versions - Latest release: almost 11 years ago - 5 dependent repositories - 693 downloads total - 12 stars on GitHub - 1 maintainer
xcitestudios/json-schemas 1.0.3
JSON.org type schemas for use in all interfaces.
3 versions - Latest release: about 9 years ago - 2 dependent packages - 6 dependent repositories - 405 downloads total - 0 stars on GitHub - 1 maintainer
Top 7.5% on packagist.org
euskadi31/microdata
Extract microdata from HTML using PHP 5.3+
Latest release: 1 day ago - 4 dependent packages - 5 dependent repositories - 18 thousand downloads total - 7 stars on GitHub - 1 maintainer
bronos/php-sql-discovery 1.0.9
PHP SQL schema discovery
10 versions - Latest release: about 3 years ago - 2 dependent packages - 2 dependent repositories - 5.91 thousand downloads total - 1 maintainer
bramdeleeuw/silverstripe-schema 3.0.2
Add schema to a Silverstripe page
14 versions - Latest release: 2 months ago - 2 dependent packages - 3 dependent repositories - 7.66 thousand downloads total - 9 stars on GitHub - 1 maintainer
umanit/seo-bundle 3.0.3
Provides SEO features on Doctrine entities.
32 versions - Latest release: 3 months ago - 8.8 thousand downloads total - 5 stars on GitHub - 1 maintainer
yanzhen0610/laravel-schema-markdown 1.4.5
Make descriptions of schema with markdown for Laravel migrations.
16 versions - Latest release: about 4 years ago - 56 downloads total - 1 stars on GitHub - 1 maintainer
keyboardcowboy/drush-compare_schemas 1.0.1
Compare the schema versions of modules between two environments.
2 versions - Latest release: about 9 years ago - 5 dependent repositories - 70 downloads total - 0 stars on GitHub - 1 maintainer
bcastellano/json-schema-bundle v1.0.1
Symfony bundle to validate json api request and responses with json-schema
2 versions - Latest release: over 7 years ago - 32 downloads total - 0 stars on GitHub - 1 maintainer
dnsoft/dnsoft-attributes v1.0.0 removed
Rinvex Attributes is a robust, intelligent, and integrated Entity-Attribute-Value model (EAV) imp...
1 version - Latest release: over 3 years ago - 8 downloads total - 0 stars on GitHub - 1 maintainer
gangbo/yii2-dbschema v1.0
help you refresh db schema
1 version - Latest release: almost 8 years ago - 10 downloads total - 0 stars on GitHub - 1 maintainer
ratiborro/laravel-scopes v1.0.6
Generating local scopes for model in existing file by database columns
6 versions - Latest release: about 3 years ago - 45 downloads total - 1 stars on GitLab.com - 1 maintainer
covex-nn/doctrine-migrations-bundle 0.9.3
Symfony DoctrineMigrationsBundle
3 versions - Latest release: almost 8 years ago - 1 dependent package - 6 dependent repositories - 918 downloads total - 0 stars on GitHub - 1 maintainer
Top 4.5% on packagist.org
dunglas/php-schema v5.2.2
Various tools to generate a data model based on Schema.org vocables
31 versions - Latest release: 10 months ago - 4 dependent packages - 8 dependent repositories - 5.55 thousand downloads total - 434 stars on GitHub - 1 maintainer
elaniin/findable 1.1.4
An SEO add-on for Statamic.
6 versions - Latest release: over 2 years ago - 1.38 thousand downloads total - 13 stars on GitHub - 1 maintainer
metadeck/eloquent-schema-org v1.0.0
Attach schema.org data to eloquent models
1 version - Latest release: over 4 years ago - 1 dependent package - 1 dependent repositories - 238 downloads total - 0 stars on GitHub - 1 maintainer
kaizer666/json-schema 0.0.2 abandoned
A library to validate a json schema.
2 versions - Latest release: over 6 years ago - 28 downloads total - 0 stars on GitHub - 1 maintainer
Top 4.5% on packagist.org
pedroborges/meta-tags v0.0.2
HTML meta tags generator for PHP.
2 versions - Latest release: almost 6 years ago - 2 dependent packages - 17 dependent repositories - 26.2 thousand downloads total - 42 stars on GitHub - 1 maintainer
cakebake/yii2-scalable-behavior 1.0.0-beta
Key-Value storage is a very simplistic, but very powerful model. Use this behavior to expand your...
1 version - Latest release: over 9 years ago - 4 dependent repositories - 105 downloads total - 4 stars on GitHub - 1 maintainer
rotexsoft/sqlschema 3.1.1 💰
Provides facilities to read table names and table columns from a database using PDO. This package...
9 versions - Latest release: 3 months ago - 2 dependent packages - 128 downloads total - 0 stars on GitHub - 1 maintainer
codito/doctrine-migrations-service-provider v2.1.0
Doctrine Migrations service provider for Silex applications
8 versions - Latest release: about 7 years ago - 4 dependent repositories - 1.34 thousand downloads total - 3 stars on GitHub - 1 maintainer
jojo1981/json-schema-asg 3.0.0
Json schema abstract semantic graph builder
8 versions - Latest release: over 1 year ago - 220 downloads total - 2 stars on GitHub - 1 maintainer
devio/eavquent v0.1.0
EAV modeling package for Eloquent and Laravel.
1 version - Latest release: about 8 years ago - 1 dependent repositories - 10.4 thousand downloads total - 61 stars on GitHub - 1 maintainer
andriy-hrechyn-forks/laravel-attributes v4.1.0 removed
Rinvex Attributes is a robust, intelligent, and integrated Entity-Attribute-Value model (EAV) imp...
24 versions - Latest release: almost 4 years ago - 6 downloads total - 1 maintainer
lyquidity/xml
Reads XML Schema documents (.xsd) files and extracts type information for PHP
Latest release: 20 days ago - 6 dependent repositories - 3.23 thousand downloads total - 2 stars on GitHub - 1 maintainer
qkskima/qkskima-php 0.0.1
Content structure field assignment tool
1 version - Latest release: about 2 months ago - 2 downloads total - 0 stars on GitHub - 1 maintainer
i-excellent/yii2-pgsql-schema 1.0.2
PostgreSQL schemas for Yii2, with fields jsonb, json
2 versions - Latest release: over 6 years ago - 28 downloads total - 1 stars on GitHub - 1 maintainer
svenkuegler/php-csv-validator 0.1.0
Simple PHP Class to validate CSV files / Single Rows
1 version - Latest release: about 8 years ago - 1 dependent repositories - 7.97 thousand downloads total - 2 stars on GitHub - 1 maintainer
tomatophp/tomato-builder v1.0.2 💰
Drop & Drag page builder with tons of components of tailwind & vuejs
3 versions - Latest release: 5 months ago - 116 downloads total - 5 stars on GitHub - 1 maintainer
Top 8.7% on packagist.org
bronos/php-sql-schema 1.0.5
PHP SQL schema
6 versions - Latest release: about 3 years ago - 4 dependent packages - 4 dependent repositories - 5.92 thousand downloads total - 1 maintainer
memcrab/json-schema 2.3.2
Json Schema Validator for PHP
28 versions - Latest release: about 2 years ago - 1 downloads total - 0 stars on GitHub - 1 maintainer
unisharp/doc-us v1.3.0
A MySQL Schema Documantation Generator for Laravel
7 versions - Latest release: about 6 years ago - 2 dependent repositories - 12.5 thousand downloads total - 36 stars on GitHub - 1 maintainer
caper87/json-schema 5.2.6
A library to validate a json schema.
40 versions - Latest release: over 6 years ago - 10 downloads total - 0 stars on GitHub - 1 maintainer
k3progetti/multiple-database v1.2.0
Symfony DoctrineMigrationsMultipleDatabaseBundle
13 versions - Latest release: 2 months ago - 53 downloads total - 0 stars on GitHub - 1 maintainer
reedware/laravel-blueprints v1.0.2
Adds useful methods to the blueprint schema builder.
3 versions - Latest release: over 3 years ago - 2 dependent repositories - 67 downloads total - 0 stars on GitHub - 1 maintainer
aleksandr.tm/json-schema 5.2.13
A library to validate a json schema.
47 versions - Latest release: 11 months ago - 2.9 thousand downloads total - 0 stars on GitHub - 1 maintainer
pessek/hypepostadmin v1.0.4
Admin interface for managing post schema
1 version - Latest release: almost 3 years ago - 3 downloads total - 0 stars on GitHub - 1 maintainer
php-extended/php-json-schema-generator-object 7.0.2
A library that implements the php-extended/php-json-schema-generator-interface library
7 versions - Latest release: about 1 month ago - 1 dependent package - 123 downloads total - 0 stars on GitLab.com - 1 maintainer
drez/hjson-to-propel-xml v1.0
Convert JSON for Humans (HJSON) to Propel XML Schema.
1 version - Latest release: over 3 years ago - 6 downloads total - 0 stars on GitHub - 1 maintainer
openstore/schema-core 0.51.6 💰
Openstore core schema
32 versions - Latest release: over 5 years ago - 1 dependent repositories - 455 downloads total - 1 stars on GitHub - 1 maintainer
nowise/slimbook 0.9.4
Simple XML schema for web page markup and type setting of books.
5 versions - Latest release: over 5 years ago - 8 downloads total - 0 stars on GitHub - 1 maintainer
Top 8.4% on packagist.org
evaisse/php-json-schema-generator v2.1.0
A JSON Schema Generator.
10 versions - Latest release: almost 2 years ago - 2 dependent packages - 1 dependent repositories - 143 thousand downloads total - 17 stars on GitHub - 1 maintainer
arfeen/json-schema-validator 1.0.0
Validates JSON using predefined schema based on data types and constraints.
1 version - Latest release: about 6 years ago - 12 downloads total - 2 stars on GitHub - 1 maintainer
mojopollo/laravel-json-schema 5.4.1
Create all your migrations and models from one JSON schema file. Laravel Database Schema in JSON ...
28 versions - Latest release: almost 7 years ago - 463 downloads total - 109 stars on GitHub - 1 maintainer
glz/laravel-schema-extend 1.0.0
support MySQL 'column comment' and 'table comment'.
1 version - Latest release: almost 7 years ago - 20 downloads total - 0 stars on GitHub - 1 maintainer
wookieb/zorro-data-schema 0.2
Tool to convert objects to arrays and vice versa according to data schema
2 versions - Latest release: over 10 years ago - 4 dependent repositories - 18 downloads total - 2 stars on GitHub - 1 maintainer
lidskasila/graphql-php-schema-parser
PHP library for parsing GraphQL schema
Latest release: 28 days ago - 2.49 thousand downloads total - 1 maintainer
php-extended/php-db-schema-mysql 9.5.2
A library to abstract the mysql database schema rules
86 versions - Latest release: about 1 month ago - 1 dependent package - 1 dependent repositories - 5.66 thousand downloads total - 0 stars on GitLab.com - 1 maintainer
codingms/schema-org 1.4.0
Adds Schema.org information into your site.
7 versions - Latest release: over 1 year ago - 6.24 thousand downloads total - 1 maintainer
laravel5compitable/attributes
Rinvex Attributes is a robust, intelligent, and integrated Entity-Attribute-Value model (EAV) imp...
Latest release: 27 days ago - 1 downloads total - 0 stars on GitHub - 1 maintainer
Top 3.1% on packagist.org
rinvex/laravel-attributes v6.1.0
Rinvex Attributes is a robust, intelligent, and integrated Entity-Attribute-Value model (EAV) imp...
28 versions - Latest release: over 2 years ago - 2 dependent packages - 9 dependent repositories - 95.8 thousand downloads total - 434 stars on GitHub - 1 maintainer
8black/wn-arcseo-plugin removed
ARCSEO WinterCMS improved SEO plugin
Latest release: about 1 year ago - 0 downloads total - 1 maintainer
johnitvn/json-query 1.0.2
Parser, create, edit, query and do validate json file.
3 versions - Latest release: almost 9 years ago - 1 dependent package - 2 dependent repositories - 404 downloads total - 5 stars on GitHub - 1 maintainer
poweronsystem/webtable
Table schema and pagination for webframework.
Latest release: 30 days ago - 5 downloads total - 0 stars on GitHub - 1 maintainer
Top 0.5% on packagist.org
spatie/schema-org 3.23.0 💰
A fluent builder Schema.org types and ld+json generator
63 versions - Latest release: 4 months ago - 52 dependent packages - 187 dependent repositories - 5.78 million downloads total - 1,293 stars on GitHub - 1 maintainer
ogestor/schema-builder 1.2.0
Schema designer & migration generator for laravel & lumen
4 versions - Latest release: over 6 years ago - 44 downloads total - 0 stars on GitHub - 1 maintainer
hashbang/joyst v0.3.2
CodeIgniter extension providing automated model functionality based on a DB schema
7 versions - Latest release: over 9 years ago - 5 dependent repositories - 30 downloads total - 0 stars on GitHub - 1 maintainer
lss/schema
Simple PHP / MySQL schema sync / migration tool. Specify your schema in PHP and it will generate ...
Latest release: 30 days ago - 760 downloads total - 8 stars on GitHub - 1 maintainer
Top 2.6% on packagist.org
mtolhuys/laravel-schematics 0.10.3
A interface to help you build your models
43 versions - Latest release: about 4 years ago - 2 dependent packages - 48 dependent repositories - 63.9 thousand downloads total - 1,481 stars on GitHub - 1 maintainer
lerni/silverstripe3-ldjsonrequirement
A patch for SilverStripe to add script tags with type application/ld+json in template
Latest release: 30 days ago - 170 downloads total - 0 stars on GitHub - 1 maintainer
bronos/php-sql-diff 1.0.2
PHP SQL schema diff
3 versions - Latest release: almost 2 years ago - 1 dependent package - 1 dependent repositories - 5.94 thousand downloads total - 1 maintainer
dmattern/laravel-attributes v4.1.0
Rinvex Attributes is a robust, intelligent, and integrated Entity-Attribute-Value model (EAV) imp...
24 versions - Latest release: almost 4 years ago - 8 downloads total - 0 stars on GitHub - 1 maintainer
evas-php/evas-db 1.0
Database module (Connection, Schemas, Builders, Result fetching)
1 version - Latest release: almost 3 years ago - 2 dependent packages - 3 dependent repositories - 43 downloads total - 3 stars on GitHub - 1 maintainer
orh/laravel-sdsl v1.0.0
Set laravel schema default string length.
1 version - Latest release: about 5 years ago - 7 downloads total - 0 stars on GitHub - 1 maintainer
jsefton/laravel-virtual-fields 1.0.0
Allow eloquent models to store and retreive data against anything without needing a specific data...
1 version - Latest release: about 3 years ago - 1 dependent package - 1 dependent repositories - 296 downloads total - 1 stars on GitHub - 1 maintainer
schema-keeper/schema-keeper v2.2.0
Database development kit for PostgreSQL
10 versions - Latest release: almost 5 years ago - 4.18 thousand downloads total - 12 stars on GitHub - 1 maintainer
pogner-it/jsv4 v1.0.1
A (coercive) JSON Schema v4 Validator for PHP
2 versions - Latest release: over 9 years ago - 11.5 thousand downloads total - 0 stars on GitHub - 1 maintainer
lorddashme/wordpress-db-schema-extender 1.1.0
A WordPress Database extender that provides a nice structure of table schema and data seeds.
5 versions - Latest release: over 5 years ago - 1 dependent package - 1 dependent repositories - 67 downloads total - 2 stars on GitHub - 1 maintainer
jach/json-schema-middleware 0.1.0
PSR-7 Middleware for Slim 3 the enables validation of JSON posted to en endpoint
1 version - Latest release: about 8 years ago - 325 downloads total - 1 stars on GitHub - 1 maintainer
qyanu/jsv4 v1.0.1
A (coercive) JSON Schema v4 Validator for PHP
2 versions - Latest release: over 9 years ago - 27 downloads total - 0 stars on GitHub - 1 maintainer
Related Keywords
database 115 json 107 php 104 laravel 102 validation 46 model 36 mysql 32 eloquent 31 migrations 31 entity 29 generator 28 validator 27 json-schema 26 dynamic 24 eav 23 entity-attribute-value 22 intelligent 22 robust 22 Integrated 22 value 22 attribute 22 db 21 sql 21 migration 20 seo 19 parser 19 doctrine 15 schema.org 15 microdata 15 api 14 array 14 builder 13 dbal 13 postgresql 13 xml 12 postgres 12 JSON-LD 12 openapi 11 extension 11 yii2 11 symfony 10 orm 9 json-ld 9 schema-org 9 data 9 yaml 8 pattern 8 structured-data 8 database-schema 8 semantic 8 hacktoberfest 8 pdo 7 sqlite 7 matcher 7 php7 7 config 7 framework 7 pgsql 6 matchmaker 6 php-library 6 wordpress 6 opengraph 5 ddl 5 comment 5 models 5 JSON Schema 5 versioning 5 swagger 5 mapping 5 sqlserver 5 database-migrations 5 magento 5 library 5 Multiple databases 5 schema design 5 structure 5 migration generator 5 schema builder 5 bundle 5 nested 4 sitemap 4 converter 4 magento2 4 nette 4 parsing 4 sync 4 helper 4 openapi3 4 functional testing 4 phpunit 4 validate 4 nosql 4 diagram 4 documentation 4 cms 4 mapper 4 sqlsrv 4 plugin 4 cakephp 4 structured data 4