What is the common syntax error that can occur when using the ELSE statement in PHP?

One common syntax error that can occur when using the ELSE statement in PHP is forgetting to include the opening curly brace '{' after the ELSE keyword. This can result in a syntax error as PHP expects a block of code to follow the ELSE statement. To solve this issue, always remember to include the opening curly brace '{' after the ELSE keyword to define the block of code to be executed when the IF condition is false.

// Incorrect code without opening curly brace after ELSE
if ($condition) {
    // code block
} else
    // code block for ELSE without opening curly brace
    echo "Condition is false";
```

```php
// Corrected code with opening curly brace after ELSE
if ($condition) {
    // code block
} else {
    // code block for ELSE with opening curly brace
    echo "Condition is false";
}