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This article mainly introduces "how php deletes things other than array numbers". In daily operation, I believe many people have doubts about how php deletes things other than array numbers. Xiaobian 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 php deletes things other than array numbers". Next, please follow the editor to study!

Php delete array numbers outside the method: 1, create a new php file; 2, create an array; 3, use foreach to traverse array elements, and use the is_numeric function to determine whether the number element is a number; 4, output delete non-digital elements of the array.

This article operating environment: windows7 system, PHP7.1 version, DELL G3 computer

How does php delete anything other than an array of numbers?

Create a new php file named test.php to explain how php removes non-numeric elements from an array.

In the test.php file, use the header () method to set the encoding format of the page to utf-8.

In the test.php file, create an array for testing.

In the test.php file, use foreach to traverse the array elements, use the is_numeric function to determine whether the digital element is a number, reverse the result of the judgment, and use if to judge, that is, if it is a non-digital element, use the unset function to delete the elements currently traversed.

In the test.php file, use the print_r output to delete the array of non-numeric elements.

Open the test.php file in a browser and view the results.

At this point, the study on "how to delete things other than array numbers by php" 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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