PHP - Type Handling
What will be the output of the following PHP code?
$var = '15.7abc';
settype($var, 'float');
echo $var;
What will be the output of the following PHP code?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand settype with 'float'
The string '15.7abc' is converted to a float. PHP reads the initial numeric part '15.7' and ignores the rest.Step 2: Output the converted value
After conversion, $var holds the float 15.7, so echo outputs '15.7'.Final Answer:
15.7 -> Option BQuick Check:
settype float parses leading number only [OK]
Quick Trick: settype float extracts leading numeric part only [OK]
Common Mistakes:
- Expecting full string output
- Assuming conversion to integer
- Thinking it outputs zero for invalid parts
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