This » PECL extension is not bundled with PHP.
Information for installing this PECL extension may be found in the manual chapter titled Installation of PECL extensions. Additional information such as new releases, downloads, source files, maintainer information, and a CHANGELOG, can be located here: » https://pecl.php.net/package/blenc
It's strongly recommended to install BLENC from sources without 'pecl' command. In this way you can:
All these configuration options are stored into header file: blenc_protect.h Please read the content of blenc_protect.h in sources of BLENC to know how set these hardcoded options.