[Solved] You want to read user input at least once and continue reading while the input is not empty. Which PHP do-while loop correctly implements this?do { $input = trim(fgets(STDIN)); // process input } ???; | PHP

PHP - Loops

You want to read user input at least once and continue reading while the input is not empty. Which PHP do-while loop correctly implements this?

do {
    $input = trim(fgets(STDIN));
    // process input
} ???;

Awhile ($input !== '');

Bwhile ($input);

Cwhile ($input == '');

Dwhile (!empty($input));

Step-by-Step Solution

Solution:

Step 1: Understand the input condition
We want to continue reading while input is not empty. The PHP function empty() returns true if input is empty.
Step 2: Choose the correct condition
Using while (!empty($input)); means loop continues while input has some content, stopping when empty.
Final Answer:
while (!empty($input)); -> Option D
Quick Check:
Loop continues while input is not empty [OK]

Quick Trick: Use while(!empty($input)) to loop until input is empty [OK]

Common Mistakes:

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You want to read user input at least once and continue reading while the input is not empty. Which PHP do-while loop correctly implements this?