PHP 4 >= 4.0.5, PECL yaz >= 0.9.0
yaz_ccl_parse - Invoke CCL Parser
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yaz_ccl_parse( resource$id, string$query, arrayresult ): bool

This function invokes a CCL parser. It converts a given CCL FIND query to an RPN query which may be passed to the yaz_search function to perform a search.

To define a set of valid CCL fields call yaz_ccl_conf prior to this function.



The connection resource returned by yaz_connect.


The CCL FIND query.


If the function was executed successfully, this will be an array containing the valid RPN query under the key rpn.

Upon failure, three indexes are set in this array to indicate the cause of failure:

errorcode - the CCL error code (integer)

errorstring - the CCL error string

errorpos - approximate position in query of failure (integer is character position)

Return Values

Returns true on success or false on failure.

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Function yaz_ccl_parse:

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