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PHP Observability API

1 post · Feb 2021

What this trail covers

Datadog, in collaboration with the PHP internals community, contributed to the development of the new observer API in PHP 8. This API addresses limitations of previous observability hooks like zend_execute_ex and custom opcode handlers, such as stack limitations, performance overhead, and incompatibility with the JIT compiler. The new API provides a more robust and performant way for tracers, profilers, and debuggers to instrument PHP applications, enabling better observability without negatively impacting performance.

All Datadog trails
  1. PHP 8: Observability baked right in | DatadogThis post details the development and contribution to the new observer API in PHP 8, which addresses limitations of previous observability hooks like zend_execute_ex and custom opcode handlers. The new API provides a more robust and performant way for tracers, profilers, and debuggers to instrument PHP applications, enabling better observability without negatively impacting performance. Key improvements include eliminating stack limitations, avoiding performance overhead from unnecessary opcodes, and ensuring compatibility with the JIT compiler.