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2025-04-03 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Development >
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This article mainly introduces how php replaces repeated characters with one character, which has certain reference value. Interested friends can refer to it. I hope you can learn a lot after reading this article. Let's take a look at it.
Methods: 1, use the str_split () function to split the string, the string into a character array, a character in the string corresponding to an element in the array; 2, use the array_unique () function to filter repeated characters in the array; 3, use the implode () function to convert the de-duplicated array into a string.
Operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer
Php replaces repetitive characters with one character
Implementation idea: with the help of array method array_unique ()
Use str_split () to split the string and turn the string into a character array
Use array_unique () to filter duplicate characters
Use implode () to convert an array to a string
Implementation code:
Output result:
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