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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4J is AWESOME

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver WIIIIIIIE \o/ “Learn the most by sharing your knowledge with others” - @coderabbi

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver This talk is entry- level.

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Michelle Sanver

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Michelle Sanver Body Text President of PHPWomen

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Michelle Sanver Accent(s)!?

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Michelle Sanver Body Text

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver I’m not a drupal developer.

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver How I got into Neo4j

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs \o/

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs \o/ Graph theory has been studied since Leonard Euler’s Bridges 1736

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs \o/ Body Text

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs \o/

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs \o/ Graphs are really just connected data… They are everywhere

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs \o/

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs \o/ It’s modern.

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs \o/ Facebook open graph

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs \o/ A graph is an easy way to visualise connected data. Michelle Graphs likes

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases Relational question: Average age of everyone in this list? Graph question: Who in here is likely going to the next DrupalCon?

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases Relational databases have tables Recipes

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases Tables have relationships Recipes Groups

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases Which causes a join table… Recipes Groups RecipeToGroup

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases You query via the table Recipes Groups RecipeToGroup

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases Imagine having *actual* relations Pasta group Spaghetti Italian group

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases Spaghetti Pasta group Italian group Recipes Groups RecipeToGroup Spaghetti:Italian Spaghetti:Pasta Pasta group Spaghetti Italian group

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases Relational databases have a structure

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases Neo4j has a flexible schema

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases A big query. The EAV model.

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases SET @entityid = '3'; SELECT ea.attribute_id, ea.attribute_code, eav.value AS 'value', 'varchar' AS 'type' FROM catalog_category_entity e JOIN catalog_category_entity_varchar eav ON e.entity_id = eav.entity_id JOIN eav_attribute ea ON eav.attribute_id = ea.attribute_id WHERE e.entity_id = @entityid UNION SELECT ea.attribute_id, ea.attribute_code, eav.value AS 'value', 'int' AS 'type' FROM catalog_category_entity e JOIN catalog_category_entity_int eav ON e.entity_id = eav.entity_id JOIN eav_attribute ea ON eav.attribute_id = ea.attribute_id WHERE e.entity_id = @entityid UNION

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases SELECT ea.attribute_id, ea.attribute_code, eav.value AS 'value', 'decimal' AS 'type' FROM catalog_category_entity e JOIN catalog_category_entity_decimal eav ON e.entity_id = eav.entity_id JOIN eav_attribute ea ON eav.attribute_id = ea.attribute_id WHERE e.entity_id = @entityid UNION selecting ea.attribute_id, ea.attribute_code, eav.value AS 'value', 'datetim 'type' FROM catalog_category_entity e JOIN catalog_category_entity_datetime eav ON e.entity_id = eav.entity_id JOIN eav_attribute ea ON eav.attribute_id = ea.attribute_id WHERE e.entity_id = @entityid UNION SELECT ea.attribute_id, ea.attribute_code, eav.value AS 'value', 'text' AS FROM catalog_category_entity e JOIN catalog_category_entity_text eav ON e.entity_id = eav.entity_id JOIN eav_attribute ea ON eav.attribute_id = ea.attribute_id WHERE e.entity_id = @entityid

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases Having a flexible database with a schema costs a lot.

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases For modern complex data…

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs vs. Relational databases Would you still pick a relational structure?

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver neo4j.com

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Java Based

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Open Source! github.com/neo4j

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Meetups everywhere neo4j.meetup.com

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs and Neo4j Graphs have…

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs and Neo4j ( Nodes )

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs and Neo4j (Node) { Properties } As many as you want Name: Michelle Nick: geekie Name: Cees-Jan Nick: WyriHaximus

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs and Neo4j Nick: geekie Nick: WyriHaximus knows (Node) [ Relationships ] As many as you want

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs and Neo4j Labels Nick: geekie Label: Person

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs and Neo4j Indexes for easy lookup

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs and Neo4j Common named graphs

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs and Neo4j Common named graphs Local McLaughlin graph

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs and Neo4j Common named graphs Diamond Butterfly Bull Franklin Tutte Wagner

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Graphs and Neo4j You can make art out of your DB. (Don’t, or do?)

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub An idea for a different recipe website

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub Like GitHub but for recipes!

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub Fork a recipe

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub See all forks

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub Send change requests

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub Join groups and share recipe collections among them

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub Have your own private recipe collections

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub Search similar recipes (This is a part where the graph structure shines)

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub Honestly… It’s a pet project

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j architecture

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j architecture Disks File System Cache Record Files Object Cache Cypher Core API Traversal API Transaction Management Transaction Log

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j architecture Disks File System Cache Record Files Object Cache Cypher Core API Traversal API Transaction Management Transaction Log

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j architecture Disks File System Cache Record Files Object Cache Cypher Core API Traversal API Transaction Management Transaction Log

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j architecture Disks File System Cache Record Files Object Cache Cypher Core API Traversal API Transaction Management Transaction Log

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j architecture

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j architecture Disks File System Cache Record Files Object Cache Cypher Core API Traversal API Transaction Management Transaction Log

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Cypher and Browser

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Cypher Cypher: SQL for graph databases.

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Cypher ) Parentheses means nodes (Or hugs) (

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Cypher } Curly braces means properties {

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Cypher ] Square brackets means relationships [

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Browser Makes it easy to visualise and query the data.

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Browser Let’s learn cypher in the browser!

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DEMO: Cypher and Browser (Michelle)-[:LOVES]->(Neo4j) @michellesanver

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j architecture Neostore File Storage

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neostore Several different store files

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neostore Each store has specific data

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neostore Nodes neostore.nodestore.db 9 bytes

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neostore Fixed size == FAST

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neostore Relationships neostore.relationshipstore. db 33 bytes

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neostore Properties neostore.propertystore.db neostore.propertystore.db. index neostore.propertystore.db. strings neostore.propertystore.db. arrays

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Hardware matters!

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Caching in memory, or filesystem

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP There is an actively maintained Drupal module for Drupal 7 and 8. https://www.drupal.org/project/neo4j

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP As we saw There’s a REST interface!

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP GraphAware PHP Client https://github.com/graphaware/neo4j-php-client

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP $client = ClientBuilder::create()
 ->addConnection('bolt', 'bolt://neo4j:password@localhost:7687')
 ->build(); 
 $query = "MATCH (n:User) RETURN n";
 $result = $client->run($query);
 
 foreach ($result->getRecords() as $record) {
 echo(count($record->value('name'));
 }


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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP $client = ClientBuilder::create()
 ->addConnection('bolt', 'bolt://neo4j:password@localhost:7687')
 ->build(); 
 $query = "MATCH (n:User) RETURN n";
 $result = $client->run($query);
 
 foreach ($result->getRecords() as $record) {
 echo(count($record->value('name'));
 }


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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP $client = ClientBuilder::create()
 ->addConnection('bolt', 'bolt://neo4j:password@localhost:7687')
 ->build(); 
 $query = "MATCH (n:User) RETURN n";
 $result = $client->run($query);
 
 foreach ($result->getRecords() as $record) {
 echo(count($record->value('name'));
 }


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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP $client = ClientBuilder::create()
 ->addConnection('bolt', 'bolt://neo4j:password@localhost:7687')
 ->build(); 
 $query = "MATCH (n:User) RETURN n";
 $result = $client->run($query);
 
 foreach ($result->getRecords() as $record) {
 echo(count($record->value('name'));
 }


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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP GraphAware also released an OGM

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP /**
 * @OGM\GraphId()
 * @var int
 */
 protected $id;
 
 /**
 * @OGM\Property(type="string")
 * @var string
 */
 protected $recipeName;
 
 /**
 * @OGM\Relationship(type="FORKED", direction="OUTGOING", targetEntity="User", collection=true)
 * @var ArrayCollection|User[]
 */
 protected $users;

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP /**
 * @OGM\GraphId()
 * @var int
 */
 protected $id;
 
 /**
 * @OGM\Property(type="string")
 * @var string
 */
 protected $recipeName;
 
 /**
 * @OGM\Relationship(type="FORKED", direction="OUTGOING", targetEntity="User", collection=true)
 * @var ArrayCollection|User[]
 */
 protected $users;

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP /**
 * @OGM\GraphId()
 * @var int
 */
 protected $id;
 
 /**
 * @OGM\Property(type="string")
 * @var string
 */
 protected $recipeName;
 
 /**
 * @OGM\Relationship(type="FORKED", direction="OUTGOING", targetEntity="User", collection=true)
 * @var ArrayCollection|User[]
 */
 protected $users;

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP /**
 * @OGM\GraphId()
 * @var int
 */
 protected $id;
 
 /**
 * @OGM\Property(type="string")
 * @var string
 */
 protected $recipeName;
 
 /**
 * @OGM\Relationship(type="FORKED", direction="OUTGOING", targetEntity="User", collection=true)
 * @var ArrayCollection|User[]
 */
 protected $users;

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP $user = $em->getRepository(User::class)- >findOneBy('name', 'Michelle');

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Neo4j in PHP It is well documented https://neo4j.com/developer/php/ https://github.com/graphaware/neo4j-php-client https://github.com/graphaware/neo4j-php-ogm

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub The possible Future

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub: The Future Connecting users “You both like”

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub: The Future Connecting recipes “These have similar ingredients and user base”

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub: The Future Being smart “You might like”

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub: The Future Being smart Smart recipe collections!

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver OmNomHub: The Future Being creepy “Don’t like meat huh?”

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Wrapup

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Wrapup Graphs are everywhere

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Wrapup They make it easy to connect data

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Wrapup Easier to be creepy <3

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Resources (Michelle)-[:LOVES]->(Neo4j) @michellesanver neo4j.org/learn https://neo4j.com/developer/php/ https://www.drupal.org/project/neo4j

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Thank you!

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver Questions?

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(Michelle)-[:LOVES]->(Neo4j) @michellesanver How would you use it?