PHP 7 incompatibility

FILE: /home/wp/disk/wordpress/wp-content/plugins/instant-search-suggest/assets/lib/class-phpquery.php
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FOUND 2 ERRORS AND 4 WARNINGS AFFECTING 6 LINES
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 2233 | WARNING | Method name "phpQueryObject::__pseudoClassParam" is discouraged; PHP has reserved all method names with a double underscore prefix for future use
 2469 | WARNING | Method name "phpQueryObject::__loadSuccess" is discouraged; PHP has reserved all method names with a double underscore prefix for future use
 2633 | WARNING | Method name "phpQueryObject::___wrapAllCallback" is discouraged; PHP has reserved all method names with a double underscore prefix for future use
 4209 | ERROR   | Function split() is deprecated since PHP 5.3 and removed since PHP 7.0; use preg_split instead
 4277 | WARNING | Method name "phpQueryObject::__dumpTree" is discouraged; PHP has reserved all method names with a double underscore prefix for future use
 5639 | ERROR   | Using 'break' outside of a loop or switch structure is invalid and will throw a fatal error since PHP 7.0
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