What is the correct syntax for outputting the value of a variable in PHP?

To output the value of a variable in PHP, you can use the `echo` or `print` statement followed by the variable name within double quotes. This will display the value of the variable on the screen. Alternatively, you can use the shorthand `<?= $variable ?>` to directly output the variable value without using `echo` or `print`.

$variable = &quot;Hello, World!&quot;;
echo $variable;
```

or

```php
$variable = &quot;Hello, World!&quot;;
print $variable;
```

or

```php
$variable = &quot;Hello, World!&quot;;
&lt;?= $variable ?&gt;