Is it possible to use Faker to simulate missing currency rates

Example of Simulating Missing Currency Rates

1. Generate Random Currency Data:
Use Faker to generate random currency codes.

php
   $faker = Faker\Factory::create();

   // Generate random currency codes
   $currencyFrom = $faker->currencyCode(); // e.g., 'USD'
   $currencyTo = $faker->currencyCode(); // e.g., 'EUR'
   

2. Simulate Missing Exchange Rates:
Create a predefined set of exchange rates and intentionally leave some currency pairs missing.

php
   // Example of a predefined set of exchange rates
   $exchangeRates = [
       'USD' => ['EUR' => 0.85, 'JPY' => 110],
       // Missing rate for 'INR'
   ];

   // Check if the conversion is valid
   if (!isset($exchangeRates[$currencyFrom][$currencyTo])) {
       echo "Error: Missing exchange rate for $currencyFrom to $currencyTo.\n";
   } else {
       $exchangeRate = $exchangeRates[$currencyFrom][$currencyTo];
       // Perform conversion
   }
   

3. Output the Results:
You can handle the error and output a message indicating the missing rate.

php
   echo "Attempting to convert $currencyFrom to $currencyTo...\n";
   

Summary