What are common syntax errors in PHP code that can lead to unexpected errors like the one mentioned in the forum thread?

One common syntax error in PHP code that can lead to unexpected errors is missing semicolons at the end of statements. This can cause PHP to misinterpret the code and lead to unexpected behavior. To solve this issue, make sure to include semicolons at the end of each statement in your PHP code.

// Incorrect code without semicolons
$variable1 = "Hello"
$variable2 = "World"

// Corrected code with semicolons
$variable1 = "Hello";
$variable2 = "World";