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Can anyone please explain what "NULL" represents and why it mentions NULL and what other values or types we can mention instead of null in the following line of code

$worksheet->fromArray( $criteria, NULL, 'A1' );

Please help me to understand this line.

Vickel
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Nazeer Shaik
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1 Answers1

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Here is the documentation: https://phpoffice.github.io/PhpSpreadsheet/classes/PhpOffice-PhpSpreadsheet-Worksheet-Worksheet.html#method_fromArray

$nullValue : mixed = null
Value in source array that stands for blank cell

shingo
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