PHP - Output and String Handling
What will be the output of the following PHP code?
$num = 42;
printf("%05d", $num);
What will be the output of the following PHP code?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the %05d format
%05d means print an integer padded with zeros to width 5.Step 2: Apply padding to the number 42
42 is two digits, so pad with three zeros in front: 00042.Final Answer:
00042 -> Option BQuick Check:
%05d pads integer with zeros to width 5 [OK]
Quick Trick: Use %0nd to pad integers with zeros to width n [OK]
Common Mistakes:
- Confusing zero padding with space padding
- Ignoring width specifier
- Using %d without width
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