The March issue of php|architect magazine has been published and this month it's all about APIs. Articles in this issue include:

• Building APIs in Zend Framework 2 (Chris Tankersley)
• Good API Design Is Not a Fairy Tale (Keith Casey)
• API Documentation and Testing with I/O Docs (Jason McCreary)
• Education Station: Fix Poorly Written Legacy Code with PHP-CS-Fixer (Matthew Setter)
• (Re)Introducing Magento: Configuration XML (Ben Marks)

You can pick up this single issue for about $5 USD or you can subscribe for a full 12 issues (PDF edition).