What are some best practices for debugging PHP code, especially when dealing with JSON data manipulation?

When debugging PHP code that involves JSON data manipulation, it is helpful to use the `json_last_error()` function to check for any JSON errors. Additionally, you can use `json_encode()` and `json_decode()` functions with the `JSON_ERROR_NONE` constant to ensure that your JSON data is properly encoded and decoded. 

// Example code snippet for debugging JSON data manipulation in PHP

$json_data = '{"name": "John", "age": 30}';
$decoded_data = json_decode($json_data);

if (json_last_error() === JSON_ERROR_NONE) {
    // JSON data is valid, proceed with manipulation
    $decoded_data['age'] += 5;

    $encoded_data = json_encode($decoded_data);

    if (json_last_error() === JSON_ERROR_NONE) {
        // JSON data manipulation successful
        echo $encoded_data;
    } else {
        // Error encoding JSON data
        echo 'Error encoding JSON data: ' . json_last_error_msg();
    }
} else {
    // Error decoding JSON data
    echo 'Error decoding JSON data: ' . json_last_error_msg();
}

Keywords

Xdebug var_dump json_decode error_reporting json_encode

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