What does "parse error, unexpected T_STRING" mean in PHP and how can it be resolved?

The error "parse error, unexpected T_STRING" in PHP typically means that there is a syntax error in the code where a string is not properly enclosed or escaped. To resolve this error, check for missing quotes or incorrect concatenation of strings in the code.

// Example code snippet with the error
echo Hello World;
```

```php
// Corrected code snippet
echo "Hello World";