Phar::setSignatureAlgorithm Set the signature algorithm for a phar and apply it &reftitle.description; public voidPhar::setSignatureAlgorithm intalgo stringnullprivateKey&null; &phar.write; set the signature algorithm for a phar and apply it. The signature algorithm must be one of Phar::MD5, Phar::SHA1, Phar::SHA256, Phar::SHA512, or Phar::OPENSSL. Note that all executable phar archives have a signature created automatically, SHA1 by default. data tar- or zip-based archives (archives created with the PharData class) must have their signature created and set explicitly via Phar::setSignatureAlgorithm. &reftitle.parameters; algo One of Phar::MD5, Phar::SHA1, Phar::SHA256, Phar::SHA512, or Phar::OPENSSL privateKey The contents of an OpenSSL private key, as extracted from a certificate or OpenSSL key file: setSignatureAlgorithm(Phar::OPENSSL, $pkey); ?> ]]> See phar introduction for instructions on naming and placement of the public key file. &reftitle.returnvalues; &return.void; &reftitle.errors; Throws UnexpectedValueException for many errors, and a PharException if any problems occur flushing changes to disk. &reftitle.changelog; &Version; &Description; 8.0.0 privateKey is now nullable. &reftitle.seealso; Phar::getSupportedSignatures Phar::getSignature