Given $var = '123abc';, which code snippet correctly converts $var to an integer and then to a boolean, preserving the final boolean value?

hard📝 Application Q9 of 15

PHP - Type Handling

Given $var = '123abc';, which code snippet correctly converts $var to an integer and then to a boolean, preserving the final boolean value?

Asettype($var, 'float'); settype($var, 'bool');

Bsettype($var, 'bool'); settype($var, 'int');

Csettype($var, 'string'); settype($var, 'bool');

Dsettype($var, 'int'); settype($var, 'bool');

Step-by-Step Solution

Solution:

Step 1: Convert string to integer first
Using settype($var, 'int') converts '123abc' to integer 123.
Step 2: Convert integer to boolean
Then settype($var, 'bool') converts 123 to boolean true (non-zero).
Final Answer:
settype($var, 'int'); settype($var, 'bool'); -> Option D
Quick Check:
Convert string to int, then int to bool for correct boolean value [OK]

Quick Trick: Convert to int before bool to preserve numeric truthiness [OK]

Common Mistakes:

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