Setup:
MediaWiki 1.39.6 (0e03068) 2024-03-11T16:26:30 PHP 8.1.2-1ubuntu2.14 (apache2handler) MariaDB 10.6.16-MariaDB-0ubuntu0.22.04.1 External Data 3.4-alpha (20a6b7f) 2024-03-15T09:43:16
Issue:
{{#display_external_table: source=https://example.org/w/images/9/9c/Export_slice_123.csv |format=CSV with header |header lines=1 |start line=3 |end line=10 |data= mynr=recordnumber, priref=orig_performance_ref, pc=productcode |template=Test Template }} |}
Deprecated : strtolower(): Passing null to parameter #1 ($string) of type string is deprecated in /../w/extensions/ExternalData/includes/EDParsesParams.php on line 117