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What does the PHP function json_encode() do?

easy📝 Conceptual Q11 of 15
PHP - File Handling
What does the PHP function json_encode() do?
AConverts PHP data into a JSON formatted string
BConverts JSON string into PHP data
CValidates JSON syntax
DReads JSON data from a file
Step-by-Step Solution
Solution:

  1. Step 1: Understand the purpose of json_encode()

    This function takes PHP variables like arrays or objects and converts them into a JSON string format.

  2. Step 2: Differentiate from json_decode()

    json_decode() does the opposite by converting JSON strings back to PHP data.

  3. Final Answer:

    Converts PHP data into a JSON formatted string -> Option A

  4. Quick Check:

    json_encode() = PHP to JSON string [OK]
Quick Trick: json_encode() makes PHP data into JSON text [OK]
Common Mistakes:
  • Confusing json_encode() with json_decode()
  • Thinking json_encode() reads JSON from files
  • Assuming json_encode() validates JSON syntax

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