Dynamic Parameter Names in LoadRunner

Occasionally, you might want to perform the same action multiple times with different parameters. While you should be very carefull with this type of scripting, the following is a basic example of how to do this in LoadRunner.

The following script will perform three searches on google.com.au using three different parameters.

Action()
{
	int i;
	char temp[10];

	// Progress Through 3 Client IDs stored in {Param_1}, {Param_2} and {Param_3}
	for(i=1;i<4;i++) {
		sprintf(temp,"{Param_%d}",i );
		lr_save_string(lr_eval_string(temp), "Param_Value");
		lr_start_transaction("Search");

		// Extract Variables
		web_reg_save_param("Number_of_Results", "LB=About ", "RB= results", LAST);

		// Validate Content
		web_reg_find("Text=", LAST);

		web_url("search", 
			"URL=http://www.google.com.au/#hl=en&q={Param_Value}", 
			"Resource=0", 
			"RecContentType=text/html", 
			"Referer=", 
			"Snapshot=t1.inf", 
			"Mode=HTML", 
			LAST);
 
		lr_end_transaction("Search", LR_AUTO);
	}
	return 0;
}