What is the error message "Unsupported operand types" in PHP and how can it be resolved?

The error message "Unsupported operand types" in PHP occurs when trying to perform an operation (such as addition or subtraction) on variables of incompatible types. To resolve this issue, you need to ensure that the operands are of the same type before performing the operation. 

// Example of resolving "Unsupported operand types" error
$number = 10;
$string = "5";

// Convert string to integer before performing addition
$result = $number + (int)$string;

echo $result; // Output: 15

Keywords

Unsupported operand types error message PHP resolve data types

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