adler32 hash generator

Warning: require(text/adler32.php): Failed to open stream: No such file or directory in /home/iotools/public_html/index.php on line 154

Fatal error: Uncaught Error: Failed opening required 'text/adler32.php' (include_path='.:/usr/share/php') in /home/iotools/public_html/index.php:154 Stack trace: #0 {main} thrown in /home/iotools/public_html/index.php on line 154