The constants below are defined by this extension, and will only be available when the extension has either been compiled into PHP or dynamically loaded at runtime.
| Constant | Value | Description |
|---|---|---|
| FUNCTION_TRACE ( integer ) | 1 | |
| ARGS_TRACE ( integer ) | 2 | |
| ASSIGNMENT_TRACE ( integer ) | 4 | |
| STATEMENT_TRACE ( integer ) | 8 | |
| MEMORY_TRACE ( integer ) | 16 | |
| TIMING_TRACE ( integer ) | 32 | |
| SUMMARY_TRACE ( integer ) | 64 | |
| ERROR_TRACE ( integer ) | 128 | |
| PROF_TRACE ( integer ) | 256 | |
| APD_VERSION ( string ) | example: 1.0.2-dev |