Code analysis tools to help with upgrading an app to a newer PHP version?

• Rector

  114 8,275 9.9 PHP

  Instant Upgrades and Automated Refactoring of any PHP 5.3+ code

  

You should look into https://github.com/rectorphp/rector. I am not sure that it will only identify things that need to be done (as I've not had use for the tool), but this is the tool everyone recommends as it will automatically upgrade your code for you.

• PHPCompatibility

  19 2,125 9.0 PHP

  PHP Compatibility check for PHP_CodeSniffer

  

I found https://github.com/PHPCompatibility/PHPCompatibility to be useful when migrating a legacy Zend 1 codebase from 5.4 to 5.6, and then to 7.1.

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• PHP Code Sniffer

  47 10,607 6.8 PHP

  PHP_CodeSniffer tokenizes PHP files and detects violations of a defined set of coding standards.

  

I recently did a compatibility check from 7.0 to 7.4 on a project using squizlabs/PHP_CodeSniffer and PHPCompatibility/PHPCompatibility. I set them up globally so I could use them on any project by doing:

• awesome-php-migrations

  1 206 0.0

  Awesome sources for PHP projects migrations - legacy, pattern refactoring, framework switches, temlates and configs...

https://github.com/TomasVotruba/awesome-php-migrations might be of interest

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