PHP - String Functions
What will be the output of the following PHP code?
$str = "Hello World!";
echo strlen($str);
What will be the output of the following PHP code?
medium📝 Predict Output Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Count characters in the string including spaces and punctuation
The string "Hello World!" has 12 characters: 5 letters + 1 space + 5 letters + 1 exclamation mark.Step 2: Confirm strlen() counts all characters
strlen($str)returns 12 because it counts every character.Final Answer:
12 -> Option AQuick Check:
Count all characters including spaces and punctuation [OK]
Quick Trick: Count every character including spaces and symbols [OK]
Common Mistakes:
- Ignoring spaces in count
- Forgetting punctuation counts
- Assuming strlen() excludes special characters
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