(PHP 5 >= 5.3.0, PHP 7, PECL phar >= 1.1.0)
Phar::setSignatureAlgorithm — Set the signature algorithm for a phar and apply it
Note:
此方法需要 将 php.ini 中的
phar.readonly设为0以适合 Phar 对象. 否则, 将抛出PharException.
   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().
  
sigtype
       One of Phar::MD5,
   Phar::SHA1, Phar::SHA256,
   Phar::SHA512, or Phar::OPENSSL
      
privatekeyThe contents of an OpenSSL private key, as extracted from a certificate or OpenSSL key file:
<?php
$private = openssl_get_privatekey(file_get_contents('private.pem'));
$pkey = '';
openssl_pkey_export($private, $pkey);
$p->setSignatureAlgorithm(Phar::OPENSSL, $pkey);
?>
没有返回值。
Throws UnexpectedValueException for many errors, and a PharException if any problems occur flushing changes to disk.