This extension is deprecated and unmaintained.
This extension provides the ereg family of functions that were provided with PHP 3-5. These functions have been superseded by the preg family of functions provided by the PCRE extension: http://php.net/pcre
Although it should be possible to build this extension with PHP 7.0, you are strongly encouraged to port your code to use PCRE, as this extension is not maintained and is available for historical reasons only.