PHP 7.4 errors in tiki-Wiki 21.x

• Bug
• Error
• Less than 30-minutes fix

My server has PHP 7.4 installed, and I get the following messages:

Home Page - logged in

Deprecated: Array and string offset access syntax with curly braces is deprecated in /tiki-sefurl.php on line 193

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/init/initlib.php on line 245

Deprecated: Array and string offset access syntax with curly braces is deprecated in /vendor_bundled/vendor/h5p/h5p-core/h5p.classes.php on line 2590

Deprecated: Array and string offset access syntax with curly braces is deprecated in /vendor_bundled/vendor/h5p/h5p-core/h5p-development.class.php on line 70

Deprecated: Unparenthesized `a ? b : c ? d : e` is deprecated. Use either `(a ? b : c) ? d : e` or `a ? b : (c ? d : e)` in /tiki-setup_base.php on line 223

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/core/Tiki/MemoryLimit.php on line 45

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/tikilib.php on line 416

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/tikilib.php on line 1925

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/tikilib.php on line 5147

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/tikilib.php on line 5147

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/tikilib.php on line 6448

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/modules/modlib.php on line 554

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/userslib.php on line 369

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/userslib.php on line 371

Deprecated: The behavior of unparenthesized expressions containing both '.' and '+'/'-' will change in PHP 8: '+'/'-' will take a higher precedence in /lib/userslib.php on line 8313

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/core/Perms/Accessor.php on line 118

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/core/Perms/Accessor.php on line 118

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/parser/parserlib.php on line 275

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/parser/parserlib.php on line 1442

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/core/WikiParser/PluginMatcher.php on line 389

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/core/WikiParser/PluginMatcher.php on line 602

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/core/WikiParser/PluginArgumentParser.php on line 27

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/core/WikiParser/PluginArgumentParser.php on line 35

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/core/WikiParser/PluginArgumentParser.php on line 39

Editing Home Page

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/wiki/editlib.php on line 1088

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/toolbars/toolbarslib.php on line 870

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/toolbars/toolbarslib.php on line 873

Entering admin main page

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/prefslib.php on line 142

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/core/Search/MySql/FieldQueryBuilder.php on line 31

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/core/Search/MySql/FieldQueryBuilder.php on line 41

Search Page

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/init/initlib.php on line 245

Deprecated: Array and string offset access syntax with curly braces is deprecated in /vendor_bundled/vendor/h5p/h5p-core/h5p.classes.php on line 2590

Deprecated: Array and string offset access syntax with curly braces is deprecated in /vendor_bundled/vendor/h5p/h5p-core/h5p-development.class.php on line 70

Deprecated: Unparenthesized `a ? b : c ? d : e` is deprecated. Use either `(a ? b : c) ? d : e` or `a ? b : (c ? d : e)` in /tiki-setup_base.php on line 223

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/core/Tiki/MemoryLimit.php on line 45

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/tikilib.php on line 416

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/tikilib.php on line 1925

Deprecated: Array and string offset access syntax with curly braces is deprecated in/lib/tikilib.php on line 5147

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/tikilib.php on line 5147

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/tikilib.php on line 6448

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/modules/modlib.php on line 554

Deprecated: Array and string offset access syntax with curly braces is deprecated in/lib/userslib.php on line 369

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/userslib.php on line 371

Deprecated: The behavior of unparenthesized expressions containing both '.' and '+'/'-' will change in PHP 8: '+'/'-' will take a higher precedence in /lib/userslib.php on line 8313

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/core/Perms/Accessor.php on line 118

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/core/Perms/Accessor.php on line 118

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/parser/parserlib.php on line 275

Deprecated: Array and string offset access syntax with curly braces is deprecated in /lib/parser/parserlib.php on line 1442

File Gallery

Deprecated: Unparenthesized `a ? b : c ? d : e` is deprecated. Use either `(a ? b : c) ? d : e` or `a ? b : (c ? d : e)` in /fgal_listing_conf.php on line 122

I have 6 other sites running and I can not change the PHP version to anything less.

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