Document interoperability

Depending on your operating system and software you are using to read/import your CSV, you may need to adjust the CSV document:

• encoding and BOM presence
• rfc4180 field compliance
• add the enclosure character on all fields
• prevents CSV formula injection

Out of the box, League\Csv connections do not alter the CSV document presentation and use PHP's CSV native functions to read and write CSV records.

In the examples we will be using an existing CSV in ISO-8859-15 charset encoding as a starting point. The code may vary if your CSV document is in a different charset and/or exposes different CSV field formats.