What common PHP errors can lead to a "Parse error: parse error, unexpected T_STRING" message in code?

This error typically occurs when there is a syntax error in the PHP code, such as a missing semicolon, mismatched parentheses, or using a reserved keyword as a variable name. To solve this issue, carefully review the code for any syntax errors and ensure that all parentheses, brackets, and quotes are properly matched.

// Incorrect code that may lead to "Parse error: parse error, unexpected T_STRING"
$variable = "Hello";
echo $variable
```

```php
// Corrected code with a missing semicolon added
$variable = "Hello";
echo $variable;