PHP - String Functions
What will be the output of the following PHP code?
$result = strcmp('Apple', 'apple');
echo $result;What will be the output of the following PHP code?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand strcmp() behavior
strcmp() compares strings case-sensitively; 'A' (ASCII 65) is less than 'a' (ASCII 97).Step 2: Determine comparison result
Since 'Apple' is less than 'apple', strcmp() returns a negative number, commonly -1.Final Answer:
1 -> Option CQuick Check:
Case-sensitive compare 'Apple' < 'apple' = positive or negative? Actually, 'A' (65) < 'a' (97), so strcmp('Apple','apple') returns negative number, typically -32 or -1 depending on implementation.
Quick Trick: strcmp() returns negative if first string is less [OK]
Common Mistakes:
- Assuming case-insensitive comparison
- Expecting 0 for different cases
- Thinking output is a boolean
Master "String Functions" in PHP
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