How can you replace the backslash character "\" with str_replace in PHP?

To replace the backslash character "\" with str_replace in PHP, you can use the following code snippet. The backslash character "\" is an escape character in PHP, so if you want to replace it with another character or remove it entirely, you can use the str_replace function.

```php
$string = "This\is\a\sample\string";
$replaced_string = str_replace("\\", "/", $string);
echo $replaced_string;
```

In this code, we have a sample string with backslashes. We use str_replace to replace all occurrences of backslashes with forward slashes. The result will be "This/is/a/sample/string".