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This article mainly introduces "how to use new Expression in yii2". In daily operation, I believe many people have doubts about how to use new Expression in yii2. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the questions of "how to use new Expression in yii2". Next, please follow the editor to study!

First

Use yii\ db\ Expression

$params = ['1m 2']

$query = Model::find ()

$where = ['or']

$query- > where ('1blank 1')

Foreach ($params as $v) {

$where [] = new _ Expression ('FIND_IN_SET (: field, field)', [': field'= > $v])

}

$query- > andWhere ($where)-> asArray ()

Echo $query- > createCommand ()-> getRawSql ()

Output sql statement:

SELECT * from `table` where 1 / 1 AND ((FIND_IN_SET ('2percent, field)) OR (FIND_IN_SET (' 2percent, field)

Modify:

/ / remember that the string contains the variable in double quotes, otherwise the variable will not be parsed.

$I = 0

Foreach ($params as $v) {

$where [] = new _ Expression ("FIND_IN_SET (: field_$i, field)", [": field_$i" = > $v])

}

/ / remember that the string contains the variable in double quotes, otherwise the variable will not be parsed.

Output the sql statement again:

SELECT * from `table` where 1 / 1 AND ((FIND_IN_SET ('1clients, field)) OR (FIND_IN_SET (' 2clients, field)

At this point, the study on "how to use new Expression in yii2" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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