Parsing Input Parameters

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Implementing the function

zval?


PHP_FUNCTION(rdp_simplify)
{   
    *zval*      *points_array;
    *double*     epsilon;  

    *ZEND_PARSE_PARAMETERS_START*(2, 2)
        Z_PARAM_*ARRAY*(points_array)
        *Z_PARAM_*DOUBLE(epsilon)
    ZEND_PARSE_PARAMETERS_END();


• A different macro for each different data type
• Matched with a C data type
• Tests for type matches
• Can deal with optional arguments too