How can missing curly braces or semicolons lead to errors in PHP scripts?

Missing curly braces or semicolons in PHP scripts can lead to syntax errors or unexpected behavior. Curly braces are essential for defining code blocks, while semicolons are used to terminate statements. To fix this issue, make sure to properly close all code blocks with curly braces and end statements with semicolons.

// Incorrect code with missing curly brace and semicolon
if ($condition)
    echo "Condition is true"

// Corrected code with added curly brace and semicolon
if ($condition) {
    echo "Condition is true";
}