What are common errors encountered during the compilation of PHP, and how can they be resolved?

One common error encountered during the compilation of PHP is the "unexpected T_VARIABLE" error, which occurs when a variable is used incorrectly in the code. This error can be resolved by checking the syntax of the variable usage and ensuring that it follows the correct format.

// Incorrect variable usage causing "unexpected T_VARIABLE" error
$variable = 10;
echo $variable;

// Correct variable usage
$variable = 10;
echo $variable;