What are some common challenges when filling interactive PDF forms with PHP?
One common challenge when filling interactive PDF forms with PHP is properly encoding special characters. To ensure that special characters are correctly displayed in the PDF form, you can use the `utf8_encode()` function to encode the string before populating the form fields.
// Sample PHP code snippet to fill interactive PDF form fields with special characters
// Sample data with special characters
$data = "Café";
// Encode the data using utf8_encode
$encoded_data = utf8_encode($data);
// Populate the PDF form field with the encoded data
$pdf->setField('field_name', $encoded_data);