How can unexpected errors like T_ENCAPSED_AND_WHITESPACE be resolved in PHP code?

The T_ENCAPSED_AND_WHITESPACE error in PHP occurs when there is a syntax issue with using variables inside double quotes. To resolve this error, you can either use concatenation to combine strings and variables, or use curly braces to clearly define the variable within the string.

// Example of resolving T_ENCAPSED_AND_WHITESPACE error
$name = "John";
// Using concatenation
echo "Hello " . $name . "!"; 
// Using curly braces
echo "Hello {$name}!";