PHP - Variables and Data Types
You want to store prices with exact decimal precision in PHP to avoid float errors. Which approach is best?
You want to store prices with exact decimal precision in PHP to avoid float errors. Which approach is best?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Understand float precision issues with money
Floats can cause rounding errors, so storing money as floats is risky.Step 2: Identify best practice for money storage
Using integers to store smallest units (like cents) avoids float errors.Final Answer:
Use integers to store cents (e.g., 199 for $1.99) -> Option BQuick Check:
Integer cents for money = B [OK]
Quick Trick: Store money as integer cents to avoid float errors [OK]
Common Mistakes:
- Using floats directly for money
- Storing money as strings without conversion
- Using boolean for numeric values
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