PHP >= 7 compatibility?

[benlk]

From the PHP version check plugin:

FILE: /Users/blk/sites/ipbs/wp-content/plugins/link-roundups/inc/saved-links/class-saved-links-widget.php

FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE

9 | WARNING | Use of deprecated PHP4 style class constructor is not supported since PHP 7.

FILE: /Users/blk/sites/ipbs/wp-content/plugins/link-roundups/inc/link-roundups/class-link-roundups-editor.php

FOUND 1 ERROR AND 40 WARNINGS AFFECTING 41 LINES

143 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% if (content) { %><%= con...
146 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% _.each(actions, function...
147 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= k %> button button-prim...
148 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% }); %>
153 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= name %>
154 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= name %>" block.

160 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% if (hasPosts) { %>loadin...
161 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% if (hasPosts) { %>Loadin...
179 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% posts.each(function(post...
180 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= post.get('ID') %>">
181 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= post.get('post_title') ...
182 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= post.getStatus() %></em...
185 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= post.get('ID') %>" href...
188 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= post.get('ID') %>" href...
192 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% }); %>
197 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= post_title %>
200 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= post_title %>"/>
204 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% if (custom_fields.lr_sub...
205 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= custom_fields.lr_subhed...
206 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% } else { %>
207 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= custom_fields.lr_subhed...
208 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% } %>
212 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% if (custom_fields.lr_url...
213 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= custom_fields.lr_url %>...
214 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% } else if (post_permalin...
215 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= post_permalink %>" />
216 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% } else { %>
218 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% } %>
222 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% if (custom_fields.lr_des...
223 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= custom_fields.lr_desc %...
224 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% } else if (post_excerpt)...
225 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= post_excerpt %></textar...
226 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% } else { %>
228 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% } %>
232 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% if (custom_fields.lr_sou...
233 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= custom_fields.lr_source...
234 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% } else if (source) { %>
235 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <%= source %>" />
236 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% } else { %>
238 | WARNING | Possible use of ASP style opening tags detected. ASP style opening tags have been removed in PHP 7.0. Found: <% } %>
335 | ERROR | Function split() is deprecated since PHP 5.3 and removed since PHP 7.0; Use preg_split() instead

The biggest one is:

335 | ERROR | Function split() is deprecated since PHP 5.3 and removed since PHP 7.0; Use preg_split() instead

[benlk]

./inc/link-roundups/class-link-roundups-editor.php: $foundIds = split(',', $group);

[benlk]

PHP message: PHP Notice: Undefined index: hook_suffix in /Users/blk/sites/energynews/wp-admin/includes/class-wp-screen.php on line 213
PHP message: PHP Notice: Trying to get property 'id' of non-object in /Users/blk/sites/energynews/wp-content/plugins/link-roundups/inc/saved-links/class-saved-links-list-table.php on line 182