How can PHP developers ensure that their code output adheres to desired formatting standards and does not include unintended characters or spaces?

PHP developers can ensure that their code output adheres to desired formatting standards and does not include unintended characters or spaces by using functions like trim() to remove leading and trailing white spaces, htmlentities() to convert special characters to HTML entities, and htmlspecialchars() to prevent XSS attacks by converting special characters to HTML entities. Additionally, developers can use tools like PHP CodeSniffer to enforce coding standards and detect formatting issues in their code. 

// Example code snippet to sanitize output and remove unintended characters or spaces
$output = "<p> This is a sample output with spaces and special characters: & </p>";
$clean_output = trim(htmlentities($output, ENT_QUOTES, 'UTF-8'));
echo $clean_output;

Keywords

PHP code formatting character encoding whitespace removal output validation

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