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

The has method in laravel can be used to query whether there is an association between data, and it is often used to determine whether the current request contains the specified value. If the value exists in the request, the has () method will return true. When an array is given, the method will determine whether all the specified values exist. The syntax is "has ('name')".

The operating environment of this tutorial: windows10 system, Laravel6 version, DELL G3 computer.

How to use has method in laravel

Has determines whether the input value exists.

You can use has to determine whether the current request contains the specified value. If this value exists in the request, the has method will return true:

If ($request- > has ('name')) {/ /}

When given an array, has determines whether all the specified values exist:

If ($request- > has (['name',' email'])) {/ /}

The hasAny method will return true if one of the specified values exists:

If ($request- > hasAny (['name',' email'])) {/ /}

Supplementary explanation

If you want to determine whether a value exists in the request and is not empty, you can use the filled method:

If ($request- > filled ('name')) {/ /}

If you want to determine whether a value is missing in the request, you can use the missing method:

If ($request- > missing ('name')) {/ /} at this point, the study on "how to use the has method in laravel" 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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