Php string flip method _ PHP Tutorial

Php implements string flip. Php character string flip method this article mainly introduces php character string flip method, which involves php character string operation techniques and has some reference value, A friend in need can refer to php to implement string flip.

This article mainly introduces the php string flip method, which involves php string operation skills and has some reference value. For more information, see

This example describes how to implement string flip in php. Share it with you for your reference. The specific implementation method is as follows:

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Header ("content-type: text/html; charset = utf-8 "); /** This function is used to reverse a Chinese string. Mb_strlen () gets the length of characters Mb_substr () gets a single element of a character. Krsort () sorts arrays by key value in reverse order Implode () concatenates an array into a string Explode () uses strings to separate strings */ Function str_rev_gb ($ str ){ // Determine whether the input is a UTF-8 character. otherwise, exit. If (! Is_string ($ str) |! Mb_check_encoding ($ str, 'utf-8 ')){ Exit ("The input type is not a UTF-8 string "); } $ Array = array (); // Save the string to an array $ L = mb_strlen ($ str, 'utf-8 '); For ($ I = 0; $ I <$ l; $ I ++ ){ $ Array [] = mb_substr ($ str, $ I, 1, 'utf-8 '); } // Reverse the string Krsort ($ array ); // Concatenate a string $ String = implode ($ array ); Return $ string; } $ Str1 = "Englist "; $ Str2 = "English China "; $ Str3 = "Eng central lish country "; $ Str4 = "People's Republic of China "; Echo $ str1. "->". str_rev_gb ($ str1 )." "; Echo $ str2. "->". str_rev_gb ($ str2 )." "; Echo $ str3. "->". str_rev_gb ($ str3 )." "; Echo $ str4. "->". str_rev_gb ($ str4 )." ";

I hope this article will help you with php programming.

This article describes how to implement string flip in php. it involves php string operation skills and has some reference value. if you need it, you can refer to it...