![How to Validate (and Sanitize) User Input In PHP Using Filter_Input() and Filter_Var() | by John Morris | Medium How to Validate (and Sanitize) User Input In PHP Using Filter_Input() and Filter_Var() | by John Morris | Medium](https://miro.medium.com/max/1400/0*LOK4EwFmpQ_Ypn00.png)
How to Validate (and Sanitize) User Input In PHP Using Filter_Input() and Filter_Var() | by John Morris | Medium
GitHub - traderinteractive/filter-strings-php: A filtering implementation for verifying correct data and performing typical modifications to strings.
GitHub - jcrowe206/BadWordFilter: A bad word filter for php. Pass in a string or array of strings to check for bad words
![Illegal string offset 'value' in Drupal\views\Plugin\views\filter\NumericFilter->opSimple [#3247686] | Drupal.org Illegal string offset 'value' in Drupal\views\Plugin\views\filter\NumericFilter->opSimple [#3247686] | Drupal.org](https://www.drupal.org/files/issues/2021-11-04/Illegal_string_offset_value.png)