# Parle\RParser::trace

(PECL parle >= 0.7.0)

Parle\RParser::trace — Trace the parser operation

### Descripción

public Parle\RParser::trace(): string

Retrieve the current parser operation description. This can be especially useful to study the parser and to optimize the grammar.

### Parámetros

Esta función no tiene parámetros.

### Valores devueltos

Returns a string with the trace information.