Trait FcallObserver 

pub trait FcallObserver: 'static {
    // Required methods
    fn should_observe(&self, info: &FcallInfo<'_>) -> bool;
    fn begin(&self, execute_data: &ExecuteData);
    fn end(&self, execute_data: &ExecuteData, retval: Option<&Zval>);
}

Available on crate feature observer only.

Trait for observing PHP function calls.

Lifecycle

1. should_observe is called once per unique function (cached by PHP)
2. If true, begin is called at function entry
3. end is called at function exit (even on exceptions)

Thread Safety

Observer must be Send + Sync. Use thread-safe primitives for mutable state.

Required Methods

fn should_observe(&self, info: &FcallInfo<'_>) -> bool

Whether to observe a specific function (result is cached by PHP).

fn begin(&self, execute_data: &ExecuteData)

Called when an observed function begins execution.

fn end(&self, execute_data: &ExecuteData, retval: Option<&Zval>)

Called when an observed function ends execution (even on exceptions).

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors