[Solved] Find the issue in this PHP snippet:$x = '20';$y = true;$z = $x . $y;echo $z; — Ans: Outputs '201' | PHP

PHP - Type Handling

Find the issue in this PHP snippet:

$x = '20';
$y = true;
$z = $x . $y;
echo $z;

AError due to type mismatch

BOutputs '201'

COutputs '20true'

DOutputs 21

Step-by-Step Solution

Solution:

Step 1: Understand concatenation with '.' operator
The '.' operator converts both operands to strings and joins them.
Step 2: Convert true to string
Boolean true converts to '1' when cast to string.
Step 3: Concatenate '20' and '1'
Result is '201'.
Final Answer:
Outputs '201' -> Option B
Quick Check:
Boolean true as string = '1' in concatenation [OK]

Quick Trick: '.' concatenates strings; true becomes '1' as string [OK]

Common Mistakes:

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