How can syntax errors be identified and fixed in PHP code?

Syntax errors in PHP code can be identified by carefully reviewing the code for any typos, missing brackets, semicolons, or other syntax rules that are not followed correctly. Once identified, the error can be fixed by correcting the syntax according to PHP's rules. Example:

// Incorrect code with a missing semicolon
echo "Hello, World"
```

To fix the syntax error, add a semicolon at the end of the line:
```php
// Corrected code
echo "Hello, World";