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<?php $schema = <<<'HERE' { "properties": { "foo": {"$ref": "#"} }, "additionalProperties": false } HERE; $schema = json_decode($schema); // unset the ref unset($schema->properties->foo); // replace it with a closure that returns the schema when accessed. $schema->properties->foo = function () use ($schema) { return $schema; }; // If you find a closure, it's a lazy proxy. Execute it to get the value. $ref = $schema->properties->foo; $referencedValue = $ref(); // You would stop recursing if 1.) you run out of nested data or 2.) you reach the max depth. var_dump($referencedValue->properties);
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.26, 8.0.0 - 8.0.13, 8.1rc1 - rc3
object(stdClass)#2 (1) { ["foo"]=> object(Closure)#1 (1) { ["static"]=> array(1) { ["schema"]=> object(stdClass)#3 (2) { ["properties"]=> *RECURSION* ["additionalProperties"]=> bool(false) } } } }
Output for 5.3.3 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
object(stdClass)#2 (1) { ["foo"]=> object(Closure)#3 (1) { ["static"]=> array(1) { ["schema"]=> object(stdClass)#1 (2) { ["properties"]=> *RECURSION* ["additionalProperties"]=> bool(false) } } } }
Output for 5.3.0 - 5.3.2
object(stdClass)#2 (1) { ["foo"]=> object(Closure)#3 (1) { ["static"]=> array(1) { ["schema"]=> object(stdClass)#1 (2) { ["properties"]=> object(stdClass)#2 (1) { ["foo"]=> object(Closure)#3 (1) { ["static"]=> array(1) { ["schema"]=> object(stdClass)#1 (2) { ["properties"]=> *RECURSION* ["additionalProperties"]=> bool(false) } } } } ["additionalProperties"]=> bool(false) } } } }
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_SL in /in/MA7ND on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_SL in /in/MA7ND on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/MA7ND on line 3
Process exited with code 255.

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