PHP Manual: Verifies a signed text

Description

arrayfalse gnupg_verify(
    resource $identifier,
    string $signed_text,
    string $signature,
    string &$plaintext = ?
)

Verifies the given signed_text and returns information about the signature.

Parameters

identifier: The gnupg identifier, from a call to gnupg_init or gnupg.
signed_text: The signed text.
signature: The signature. To verify a clearsigned text, set signature to false.
plaintext: The plain text. If this optional parameter is passed, it is filled with the plain text.

Return Values

On success, this function returns information about the signature. On failure, this function returns false.

Examples

Example #1 Procedural gnupg_verify example

<?php
$plaintext = "";
$res = gnupg_init();
// clearsigned
$info = gnupg_verify($res,$signed_text,false,$plaintext);
print_r($info);
// detached signature
$info = gnupg_verify($res,$signed_text,$signature);
print_r($info);
?>

Example #2 OO gnupg_verify example

<?php
$plaintext = "";
$gpg = new gnupg();
// clearsigned
$info = $gpg->verify($signed_text,false,$plaintext);
print_r($info);
// detached signature
$info = $gpg->verify($signed_text,$signature);
print_r($info);
?>