Php/docs/parle-parser.trace

• PHP Manual
• Parle\Parser
• Trace the parser operation

Parle\Parser::trace

(PECL parle >= 0.5.1)

Parle\Parser::trace — Trace the parser operation

说明

public Parle\Parser::trace ( ) : string

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

参数

此函数没有参数。

返回值

Returns a string with the trace information.