Composer.json Validator
Validate composer.json structure and common mistakes without running composer install.
PHP Developer Tools
Safe browser tools for PHP syntax, configuration, FPM sizing, Xdebug, Composer, regex, and more—without executing your code.
The PHP Developer Toolbox analyzes and generates configuration safely in your browser session. Tools transform text—they never eval() PHP, never run Composer installs, and never connect to databases with your credentials.
Featured tools
- PHP Version Compatibility Checker
- PHP Syntax Checker
- PHP-FPM Pool Calculator
- Xdebug Config Generator
- Composer.json Validator
Privacy: submitted source, passwords, and configs are processed for the request only and are not stored in analytics logs.
Modernization tools
Featured tools
Legacy PHP Risk Checker
Paste PHP source for a static scan that classifies removed APIs, deprecated calls, and security-sensitive legacy patterns—without executing…
PHP Error Matcher
Paste a full PHP error, warning, SQLSTATE, or cURL message to find the best ZendStudio.net troubleshooting guides.
PHP Modernization Roadmap
Build an ordered migration stage list from your PHP version, framework, Composer, database API, and deployment choices—linked to real ZendS…
PHP Syntax Checker
Paste PHP source to find parse/syntax problems without executing any code on the server.
PHP Version Compatibility Checker
Scan pasted PHP for version-sensitive syntax and APIs to plan upgrades across PHP releases.
PHP-FPM Pool Calculator
Estimate pm.max_children and related pool sizing from RAM, average worker usage, and reserve.
Xdebug Config Generator
Generate Xdebug 3 (modern) or historical Xdebug 2 ini snippets for step debugging setups.
PHP Code
Analyze, format, convert, and inspect PHP source and array literals without executing code.
- JSON to PHP Access Helper Generate PHP array access examples from JSON samples and optional path expressions.
- Legacy PHP Risk Checker Paste PHP source for a static scan that classifies removed APIs, deprecated calls, and se…
- PHP Array ↔ JSON Converter Convert between JSON and PHP array literals using a restricted parser—no eval and no vari…
- PHP Deprecated Checker Find deprecated functions and patterns in pasted PHP to prioritize modernization work.
- PHP Formatter Reindent and normalize PHP source formatting for readability without executing the code.
- PHP Minifier Compress PHP source by removing unnecessary whitespace for compact storage or transport d…
- PHP Modernization Roadmap Build an ordered migration stage list from your PHP version, framework, Composer, databas…
- PHP Regex Tester Test PCRE regular expressions against sample subjects the way PHP preg_* functions would…
- PHP Serialize Encoder Encode simple structured values into PHP serialize() format for fixtures and interoperabi…
- PHP Syntax Checker Paste PHP source to find parse/syntax problems without executing any code on the server.
- PHP Version Compatibility Checker Scan pasted PHP for version-sensitive syntax and APIs to plan upgrades across PHP release…
- PSR-4 Autoload Checker Check whether class paths match composer.json PSR-4 namespace prefixes.
PHP Configuration
Generate and reason about php.ini, OPcache, memory, uploads, and error_reporting settings.
- Config Diff Compare two configuration text blobs line-by-line to spot drift between environments.
- OPcache Config Generator Suggest a conservative OPcache starting configuration from host RAM and workload hints.
- PHP Configuration Inspector Paste php --ini output or selected directive lines to identify loaded ini files and key l…
- PHP Environment Compare Compare two PHP environment summaries to find directive and extension mismatches.
- PHP Error Reporting Generator Build error_reporting, display_errors, and log_errors snippets for development and produc…
- PHP Memory Calculator Reason about memory_limit sizing and interpret Allowed memory size exhausted messages.
- PHP Upload Limit Calculator Calculate coherent upload_max_filesize, post_max_size, and related layers for Apache/Ngin…
- PHP-FPM Pool Calculator Estimate pm.max_children and related pool sizing from RAM, average worker usage, and rese…
- PHP.ini Generator Generate practical php.ini starting points for development, production, WordPress, upload…
Debugging
Tools that help diagnose runtime failures, environment mismatches, and developer setup issues.
- Config Diff Compare two configuration text blobs line-by-line to spot drift between environments.
- Legacy PHP Risk Checker Paste PHP source for a static scan that classifies removed APIs, deprecated calls, and se…
- PHP Deprecated Checker Find deprecated functions and patterns in pasted PHP to prioritize modernization work.
- PHP Environment Compare Compare two PHP environment summaries to find directive and extension mismatches.
- PHP Error Matcher Paste a full PHP error, warning, SQLSTATE, or cURL message to find the best ZendStudio.ne…
- PHP Error Reporting Generator Build error_reporting, display_errors, and log_errors snippets for development and produc…
- PHP Memory Calculator Reason about memory_limit sizing and interpret Allowed memory size exhausted messages.
- PHP Modernization Roadmap Build an ordered migration stage list from your PHP version, framework, Composer, databas…
- PHP Syntax Checker Paste PHP source to find parse/syntax problems without executing any code on the server.
- PHP Version Compatibility Checker Scan pasted PHP for version-sensitive syntax and APIs to plan upgrades across PHP release…
- Xdebug Config Generator Generate Xdebug 3 (modern) or historical Xdebug 2 ini snippets for step debugging setups.
- Xdebug Troubleshooter Walk through common Xdebug connection failures with structured checks and likely fixes.
Composer
Validate composer.json, explain version constraints, and check PSR-4 autoload mappings safely.
- Composer Platform Checker Paste composer.json to list PHP constraints and ext-* platform requirements without runni…
- Composer Version Constraint Explainer Explain Composer semver constraints and test whether specific versions satisfy them.
- Composer.json Validator Validate composer.json structure and common mistakes without running composer install.
- PHP Modernization Roadmap Build an ordered migration stage list from your PHP version, framework, Composer, databas…
- PSR-4 Autoload Checker Check whether class paths match composer.json PSR-4 namespace prefixes.
Xdebug
Generate Xdebug configuration and troubleshoot common step-debugging connectivity problems.
- Docker PHP + Xdebug Generator Generate Dockerfile, xdebug.ini, and Compose fragments for PHP with Xdebug 3.
- Xdebug Config Generator Generate Xdebug 3 (modern) or historical Xdebug 2 ini snippets for step debugging setups.
- Xdebug Troubleshooter Walk through common Xdebug connection failures with structured checks and likely fixes.
PHP-FPM
Size PHP-FPM worker pools and generate pool configuration snippets for real hosts.
- Nginx + PHP-FPM Generator Generate Nginx server snippets that pass PHP to PHP-FPM over a Unix socket or TCP upstrea…
- PHP-FPM Config Generator Generate a PHP-FPM pool configuration file from pool name, socket/listen settings, and pr…
- PHP-FPM Pool Calculator Estimate pm.max_children and related pool sizing from RAM, average worker usage, and rese…
Web Servers
Apache .htaccess and Nginx + PHP-FPM snippets for common PHP application hosting patterns.
- Apache .htaccess Generator Generate Apache .htaccess snippets for front controllers, HTTPS, www rules, caching, and…
- Nginx + PHP-FPM Generator Generate Nginx server snippets that pass PHP to PHP-FPM over a Unix socket or TCP upstrea…
- PHP Upload Limit Calculator Calculate coherent upload_max_filesize, post_max_size, and related layers for Apache/Ngin…
Data / Encoding
Transform and inspect structured data, hashes, UUIDs, and PHP serialization formats.
- Base64 Encode / Decode Encode text to Base64 or decode Base64 back to readable text for debugging headers, token…
- Hash Generator Generate non-password digests (SHA family and friends) for checksums and fingerprinting.
- JSON Formatter Validate, pretty-print, and minify JSON in the browser without sending payloads to a serv…
- JSON to PHP Access Helper Generate PHP array access examples from JSON samples and optional path expressions.
- PHP Array ↔ JSON Converter Convert between JSON and PHP array literals using a restricted parser—no eval and no vari…
- PHP Serialize Encoder Encode simple structured values into PHP serialize() format for fixtures and interoperabi…
- PHP Serialize Viewer Safely inspect PHP serialized strings as a readable tree without executing PHP on the ser…
- URL Encode / Decode Percent-encode query strings or decode encoded URLs when debugging redirects, forms, and…
- UUID Generator Generate UUIDs for application keys, test fixtures, and API identifiers.
Regex
Test PCRE patterns against sample text and explain regular expressions used in PHP.
Security
Password hashing helpers and digest utilities with clear guidance on what not to misuse.
- Hash Generator Generate non-password digests (SHA family and friends) for checksums and fingerprinting.
- Legacy PHP Risk Checker Paste PHP source for a static scan that classifies removed APIs, deprecated calls, and se…
- PHP Password Hash Tool Generate and verify password_hash()/password_verify() examples using modern PHP password…
- PHP Serialize Viewer Safely inspect PHP serialized strings as a readable tree without executing PHP on the ser…
- UUID Generator Generate UUIDs for application keys, test fixtures, and API identifiers.
DevOps
Cron, Docker, config diffs, and environment comparison helpers for shipping PHP apps.
- Apache .htaccess Generator Generate Apache .htaccess snippets for front controllers, HTTPS, www rules, caching, and…
- Config Diff Compare two configuration text blobs line-by-line to spot drift between environments.
- Cron Expression Helper Explain and build five-field Unix cron expressions for PHP schedulers and system crontab.
- Docker PHP + Xdebug Generator Generate Dockerfile, xdebug.ini, and Compose fragments for PHP with Xdebug 3.
- Nginx + PHP-FPM Generator Generate Nginx server snippets that pass PHP to PHP-FPM over a Unix socket or TCP upstrea…
- PHP Environment Compare Compare two PHP environment summaries to find directive and extension mismatches.
- PHP-FPM Config Generator Generate a PHP-FPM pool configuration file from pool name, socket/listen settings, and pr…
- PHP-FPM Pool Calculator Estimate pm.max_children and related pool sizing from RAM, average worker usage, and rese…
- Unix Timestamp Converter Convert Unix epoch seconds to human-readable UTC/local time and back for log correlation…
Frequently asked questions
Do these tools run my PHP code on the server?
No. Browser tools here transform or inspect text safely. There is no remote PHP execution sandbox.