JSON-Schema with simple $ref resolution (reference to local definition)

address-ref.php

<?php
ini_set('display_errors', 1);
require __DIR__ . '/vendor/autoload.php';

$json = '{
  "shipping_address": {
    "street_address": "1600 Pennsylvania Avenue NW",
    "city": "Washington",
    "state": "DC"
  },
  "billing_address": {
    "street_address": "1st Street SE",
    "city": "Washington",
    "state": "DC"
  }
}';

$retriever = new JsonSchema\Uri\UriRetriever;
$schema = $retriever->retrieve('file://' . realpath('schema-address.json'));
var_dump(json_encode($schema, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
$refResolver = new JsonSchema\RefResolver($retriever);
//$refResolver->resolve($schema, 'file://' . __DIR__);
$refResolver->resolve($schema);
var_dump('============================== RESOLVED SCHEMA ===============================================');
var_dump(json_encode($schema, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));
var_dump('============================== JSON DATA =====================================================');
var_dump(json_encode(json_decode($json), JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE));

$validator = new JsonSchema\Validator();

$validator->check(json_decode($json), $schema);

if ($validator->isValid()) {
    // this will be the output with master version as of 20150903
    echo "The supplied JSON validates against the schema.\n";
} else {
    echo "JSON does not validate. Violations:\n";
    foreach ($validator->getErrors() as $error) {
        echo sprintf("[%s] %s\n", $error['property'], $error['message']);
    }
}

schema-address.json

{
    "$schema": "http://json-schema.org/draft-04/schema#",

    "definitions": {
      "address": {
        "type": "object",
        "properties": {
          "street_address": { "type": "string" },
          "city":           { "type": "string" },
          "state":          { "type": "string" }
        },
        "required": ["street_address", "city", "state"]
      }
    },

    "type": "object",

    "properties": {
      "billing_address": { "$ref": "#/definitions/address" },
      "shipping_address": { "$ref": "#/definitions/address" }
    },
    "required": ["billing_address", "shipping_address"]
}

xoutput.md

# 09:29:48 0 (master|✚ 3…4) /srv/www/json-schema $ php address-ref.php 
string(927) "{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "definitions": {
        "address": {
            "type": "object",
            "properties": {
                "street_address": {
                    "type": "string"
                },
                "city": {
                    "type": "string"
                },
                "state": {
                    "type": "string"
                }
            },
            "required": [
                "street_address",
                "city",
                "state"
            ]
        }
    },
    "type": "object",
    "properties": {
        "billing_address": {
            "$ref": "#/definitions/address"
        },
        "shipping_address": {
            "$ref": "#/definitions/address"
        }
    },
    "required": [
        "billing_address",
        "shipping_address"
    ],
    "id": "file:///srv/www/json-schema/schema-address.json"
}"
string(94) "============================== RESOLVED SCHEMA ==============================================="
string(2011) "{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "definitions": {
        "address": {
            "type": "object",
            "properties": {
                "street_address": {
                    "type": "string"
                },
                "city": {
                    "type": "string"
                },
                "state": {
                    "type": "string"
                }
            },
            "required": [
                "street_address",
                "city",
                "state"
            ],
            "id": "file:///srv/www/json-schema/schema-address.json#/definitions/address"
        }
    },
    "type": "object",
    "properties": {
        "billing_address": {
            "type": "object",
            "properties": {
                "street_address": {
                    "type": "string"
                },
                "city": {
                    "type": "string"
                },
                "state": {
                    "type": "string"
                }
            },
            "required": [
                "street_address",
                "city",
                "state"
            ],
            "id": "file:///srv/www/json-schema/schema-address.json#/definitions/address"
        },
        "shipping_address": {
            "type": "object",
            "properties": {
                "street_address": {
                    "type": "string"
                },
                "city": {
                    "type": "string"
                },
                "state": {
                    "type": "string"
                }
            },
            "required": [
                "street_address",
                "city",
                "state"
            ],
            "id": "file:///srv/www/json-schema/schema-address.json#/definitions/address"
        }
    },
    "required": [
        "billing_address",
        "shipping_address"
    ],
    "id": "file:///srv/www/json-schema/schema-address.json"
}"
string(94) "============================== JSON DATA ====================================================="
string(271) "{
    "shipping_address": {
        "street_address": "1600 Pennsylvania Avenue NW",
        "city": "Washington",
        "state": "DC"
    },
    "billing_address": {
        "street_address": "1st Street SE",
        "city": "Washington",
        "state": "DC"
    }
}"
The supplied JSON validates against the schema.