This documentation page is for Quform version 1 and may not be applicable for Quform 2 click here to visit the documentation for Quform 2.
Filters
Password → Settings → Advanced
Filters can be used to strip harmful or unwanted data from the submitted form data. See below for an explanation of what each filter does and its options.
Adding a filter
To add a filter, click the button of the filter you want to add, for example, to add the Trim filter, click the Trim button.
Removing a filter
To remove a filter, click the remove icon on the filter.
Filters
Alpha Numeric
The alpha numeric filter removes any characters that are not alphabet characters or digits.
Options
| Option | Default | Description |
|---|---|---|
| Allow whitespace | unchecked | Whether to allow whitespace such as spaces and tabs |
Alpha
The alpha filter removes any non-alphabet characters.
Options
| Option | Default | Description |
|---|---|---|
| Allow whitespace | unchecked | Whether to allow whitespace such as spaces and tabs |
Digits
The digits filter removes any characters that are not digits.
Options
| Option | Default | Description |
|---|---|---|
| Allow whitespace | unchecked | Whether to allow whitespace such as spaces and tabs |
Regex
The regex filter removes any characters that match the given regular expression.
Options
| Option | Default | Description |
|---|---|---|
| Pattern | The regular expression pattern to match |
Strip Tags
The strip tags filter removes any HTML tags.
Options
| Option | Default | Description |
|---|---|---|
| Allowable tags | A list of any allowed tags e.g. <p><br><span> |
Trim
The trim filter removes any whitespace from the start and end of the value.