What are common syntax errors that can lead to a "parse error: unexpected T_VARIABLE" in PHP code?

A common syntax error that can lead to a "parse error: unexpected T_VARIABLE" in PHP code is forgetting to properly terminate a statement or missing a semicolon at the end of a line. This error typically occurs when PHP encounters a variable without a proper preceding statement or delimiter. To solve this issue, carefully review your code for missing semicolons or incorrect syntax around variables.

// Incorrect code that can lead to a parse error
$variable = "Hello"
echo $variable;

// Corrected code with proper semicolon
$variable = "Hello";
echo $variable;