[Solved] In PHP, what happens when you add a string containing a number to an integer, like '5' + 3? — Ans: The string '5' is converted to the number 5, then added to 3, resulting in 8. | PHP

PHP - Type Handling

In PHP, what happens when you add a string containing a number to an integer, like '5' + 3?

APHP throws a type error because you can't add string and integer.

BThe result is the string '53' by concatenating '5' and '3'.

CThe string '5' is converted to the number 5, then added to 3, resulting in 8.

DThe operation returns null because of incompatible types.

Step-by-Step Solution

Solution:

Step 1: Understand PHP type coercion in addition
PHP automatically converts strings containing numbers to integers or floats when used in arithmetic operations.
Step 2: Apply addition after conversion
The string '5' becomes the integer 5, then 5 + 3 equals 8.
Final Answer:
8 -> Option C
Quick Check:
'5' + 3 = 8 [OK]

Quick Trick: Strings with numbers convert to numbers in math operations [OK]

Common Mistakes:

Master "Type Handling" in PHP

9 interactive learning modes - each teaches the same concept differently

More PHP Quizzes

In PHP, what happens when you add a string containing a number to an integer, like '5' + 3?