How to verify a digital signature with php

[princessblaise39]

Here is example Creating and Verifying Digital Signaturesopenssl smime -verify -in validation_XXX.pem -inform PEM -binary -content original_text_XXX.txt -CAfile fnmt.pemIs it possible to verify the signature without CAfile?Are there other solutions to verify signed data with php? I tryed openssl_verify with no sucsess.