What is the significance of the error message "Parse error: parse error, unexpected ';' in..." in PHP code?

The error message "Parse error: parse error, unexpected ';' in..." indicates that there is an unexpected semicolon in the PHP code, usually at a point where it is not allowed syntactically. To solve this issue, you need to carefully review the line mentioned in the error message and remove the unnecessary semicolon causing the error.

// Incorrect code with unexpected semicolon
$variable = 10;

// Corrected code without the unexpected semicolon
$variable = 10;