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Convert PHP Array to JSON Online - Free, Local & Instant

Instant PHP Array (.php) to JSON (.json) converter. 100% client-side processing in your browser RAM — zero file uploads, full privacy, drag & drop or paste raw text.

PHP Array → JSON ⇄ Swap (JSON → PHP Array)

Technical Comparison: PHP Array vs JSON

Data & Dev Config
Specification PHP Array (Source) JSON (Target)
Full Specification PHP Short-Syntax Associative Array Literal JavaScript Object Notation
File Extension & MIME .php (text/plain) .json (application/json)
Data Typing Model Associative & indexed arrays with => fat-arrow syntax Strict (strings, numbers, booleans, arrays, objects, null)
Structure & Hierarchy Deeply nested PHP return array config files Deeply nested trees & arrays
Comments Support Supported (// and /* */) Not supported in RFC 8259 (supported via relaxed parser)
Primary Ecosystem Laravel config/*.php, WordPress plugins, Symfony & Composer projects REST APIs, web apps, NoSQL document stores, modern configs

PHP Array to JSON — Before & After Example

Before (PHP Array Input)
<?php

$data = [
  [
    'id' => 1,
    'name' => 'Alice Johnson',
    'email' => 'alice@example.com',
    'role' => 'admin',
    'active' => true,
    'score' => 98.5,
    'address' => [
      'city' => 'Berlin',
      'country' => 'DE',
    ],
  ],
  [
    'id' => 2,
    'name' => 'Bob Smith',
    'email' => 'bob@example.com',
    'role' => 'editor',
    'active' => false,
    'score' => 87,
    'address' => [
      'city' => 'Austin',
      'country' => 'US',
    ],
  ],
  [
    'id' => 3,
    'name' => 'Chiara Rossi',
    'email' => 'chiara@example.com',
    'role' => 'viewer',
    'active' => true,
    'score' => 91.25,
    'address' => [
      'city' => 'Milan',
      'country' => 'IT',
    ],
  ],
];

return $data;
After (JSON Output)
[
  {
    "id": 1,
    "name": "Alice Johnson",
    "email": "alice@example.com",
    "role": "admin",
    "active": true,
    "score": 98.5,
    "address": {
      "city": "Berlin",
      "country": "DE"
    }
  },
  {
    "id": 2,
    "name": "Bob Smith",
    "email": "bob@example.com",
    "role": "editor",
    "active": false,
    "score": 87,
    "address": {
      "city": "Austin",
      "country": "US"
    }
  },
  {
    "id": 3,
    "name": "Chiara Rossi",
    "email": "chiara@example.com",
    "role": "viewer",
    "active": true,
    "score": 91.25,
    "address": {
      "city": "Milan",
      "country": "IT"
    }
  }
]

Frequently Asked Questions: PHP Array to JSON

How do I convert PHP Array to JSON online without uploading sensitive files? ▾

Paste your PHP Array data or drag and drop a .php file into the converter above. ZeroUpload parses PHP Array and serializes JSON 100% inside your browser RAM using local JavaScript—no bytes are ever sent to an external server.

How are nested objects or tabular columns mapped between PHP Array and JSON? ▾

When converting hierarchical structures (Deeply nested PHP return array config files) and tabular or config formats (Deeply nested trees & arrays), our engine automatically flattens or unflattens dot-separated keys (such as address.city) and preserves numbers, booleans, arrays, and null values.

Is this PHP Array to JSON converter free for commercial and production config files? ▾

Yes. The tool is completely free, requires no account or API key, and works offline once loaded. Because execution happens in local memory, it is safe for proprietary PHP Array, database exports, and production secrets.

Can I convert JSON back to PHP Array? ▾

Yes! Click the "Swap (JSON → PHP Array)" button at the top of the workspace or use the reverse converter link at the bottom of this page for bidirectional conversion.