What is the expected input type for the number_format function in PHP?

The number_format function in PHP expects the input to be a numeric value, either an integer or a float. If a non-numeric value is passed to the function, it will result in an error. To avoid this issue, always ensure that the input provided to the number_format function is a valid numeric value. 

// Example of using number_format function with proper input validation
$number = 1234.5678;

if (is_numeric($number)) {
    $formatted_number = number_format($number, 2);
    echo $formatted_number;
} else {
    echo "Invalid input. Please provide a numeric value.";
}

Keywords

number_format function PHP expected input type

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