Compatible plugin reported as PHP 7.0 uncompatible

Hi guys, our Compress JPEG and PNG images plugin is quite thoroughly tested but your PHP 7.0 check failed. We tracked it down to the following lines of code that produced the false result.

<?php

function mysql_dump_file() {
return dirname( __FILE__ ) . ‘/../../tmp/mysqldump_’ . getenv( ‘WORDPRESS_DATABASE’ ) . ‘.sql.gz’;
}

shell_exec( ‘gunzip -c < ‘ . mysql_dump_file() . ‘ | mysql -h ‘ . getenv( ‘HOST’ ) . ‘ -u root ‘ . getenv( ‘WORDPRESS_DATABASE’ ) );

?>

Maybe you can take a look!

https://www.ads-software.com/plugins/php-compatibility-checker/