If true, then zero length strings are stored as nulls
Default:
This applies when the metatype is 'C' or 'X' (char and varchar) and strlen($data) == 0. Note that we do not trim the data first, so if you want to also strip off white-space, you will have to do it manually using spEdit or spNew properties.Syntax
# the following fields will store null when the string is empty.
$lens->emptyCharIsNull = 'field1;field2'; Basic:Yes Advanced/Enterprise:Yes DynamicEdit:Yes [Version 2.7.2]
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