Remove deprecated function and used new function instead that

[shital7mahajan]

Run Command => $ phpcs --standard=PHPCompatibility --extensions=php,module,inc,install,test,profile,theme --runtime-set testVersion 7.2 ImageFlow/

FILE: D:\git\patch\ImageFlow\reflect2.php => WARNING | Function dl() is deprecated since PHP 5.3
FILE: D:\git\patch\ImageFlow\reflect3.php =>

1. WARNING | Function dl() is deprecated since PHP 5.3
2. ERROR | Extension 'ereg' is deprecated since PHP 5.3 and removed since PHP 7.0; Use pcre instead
3. ERROR | Function ereg_replace() is deprecated since PHP 5.3 and removed since PHP 7.0; Use reg_replace() instead

1]Removed deprecated function dl();
2]Replace ereg_replace() with preg_replace().