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This article mainly introduces "php a field value how to remove the duplicate value". In the daily operation, I believe that many people have doubts about how to remove the duplicate value of a php field value. The editor consulted all kinds of data and sorted out a simple and easy-to-use operation method. I hope it will be helpful for everyone to answer the doubt of "how to remove the duplicate value of a php field value". Next, please follow the editor to study!

Methods: 1, use the explode () function to divide the specified field into an array; 2, use the "array_unique" function to remove the repeated values in the array; 3, use the implode () function to combine the array that removes the duplicate values into a string.

Operating environment of this tutorial: windows10 system, PHP7.1 version, DELL G3 computer

Php how to remove the duplicate value of a field value

Explode (',', $data) splits the string into an array

The array_unique () array removes duplicate values.

Implode (',', $data)) uses the array to split and combine into strings

Examples are as follows:

$data = "xiaomi,xiaohong,xiaogang,xiaomi,xiaohu"; $data = implode (',', array_unique (explode (',', $data)); echo $data

/ / result is $data= "xiaomi,xiaohong,xiaogang,xiaohu"

At this point, the study of "how to remove the duplicate value of a field value of 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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