php - Negate a $regex for mongodb in Yii2 -


i use $regex inside aggregation pipeline $match instruction in php. need find record "does not contain" string. i'v found out online $not operator used such cases, if try this:

$regex = "/.*".$sometext.".*";     $use['$not'] = $regex;

also 1 not work:

new \mongoregex("/.*".$sometext.".*") $use['$not'] = $regex;

in short need find text not contain string


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