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# Correlation Functions for C

This section lists C language correlation functions. For other languages, see Correlation Functions for Java and Correlation Functions for JavaScript.

Click one of the following functions for more information:

web_reg_save_param | Deprecated: Use web_reg_save_param_ex, web_reg_save_param_regexp or web_reg_save_param_xpath. Saves non-NULL terminated dynamic data from an HTML page to a parameter.
web_reg_save_param_attrib | Registers a request to save dynamic data in a server response that has been formatted as HTML. The data is saved to a parameter.
web_reg_save_param_ex | Registers a request to save dynamic data located between specified boundaries. The data is saved to a parameter.
web_reg_save_param_json | Registers a request to save dynamic data in an buffer that has been formatted as Json. The data is saved to a parameter.
web_reg_save_param_regexp | Registers a request to save dynamic data that matches a regular expression. The data is saved to a parameter.
web_reg_save_param_xpath | Registers a request to save dynamic data in an HTML buffer that has been formatted as XML. The data is saved to a parameter.
web_save_param_length | Saves the length of a parameter.
web_save_timestamp_param | Saves the current timestamp.
web_set_max_html_param_len | Sets the maximum length of retrieved dynamic HTML information.

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