API reference

JsonFast exposes static methods only. Data-returning methods accept an optional $output argument (output modes).

Constants

Output & repair constants

Validation & diagnostics

Method	Description
`validate()`	Quick boolean check — is this valid JSON?
`inspect()`	Valid/invalid plus error line and column
`analyse()`	Full diagnostic with suggested repair flags

Repair & encoding

Method	Description
`repair()`	Fix malformed JSON with a repair flag bitmask
`unwrap()`	Peel double- or triple-encoded JSON strings

Format

Method	Description
`beautify()`	Pretty-print with configurable indent
`minify()`	Compact JSON or parsed value

Path access

Method	Description
`get()`	Read a single dot/bracket path
`has()`	Check whether a path exists
`search()`	Collect values matching a wildcard path
`extract()`	Read multiple paths in one call

Transform

Method	Description
`merge()`	Deep-merge two documents
`diff()`	Structural diff between two documents

Schema

Method	Description
`getSchema()`	Infer JSON Schema from a document
`validateSchema()`	Validate JSON against a schema
`applySchema()`	Apply defaults and strip extra properties
`schemaDiff()`	Diff two schema documents

Global notes

Schema validation implements a focused subset of JSON Schema (type, required, properties, items, default) — not the full draft spec.
Path wildcards ([*]) work in search(), not in get().
beautify() with OUTPUT_STRING preserves indent; other methods return compact JSON strings.
OUTPUT_OBJECT maps JSON objects to stdClass; JSON arrays remain PHP arrays.