Php split function instances that merge two strings

This article mainly introduces the function of separating and merging two strings in php. The example analyzes php's skills related to string operations, for more information about how to split and merge two strings in php, see the example in this article. Share it with you for your reference. The specific implementation method is as follows:

In this example, the two strings are split and merged, for example, str1 = aaaa and str2 = bbbb. after the strings are merged, the abababab is generated.

/*** Merges two strings in a way that a pattern like ABABAB will be * the result. ** @ param string $ str1 String A * @ param string $ str2 String B * @ return string Merged string */function MergeBetween ($ str1, $ str2) {// Split both strings $ str1 = str_split ($ str1, 1); $ str2 = str_split ($ str2, 1 ); // Swap variables if string 1 is larger than string 2 if (count ($ str1)> = count ($ str2) list ($ str1, $ str2) = array ($ str2, $ str1); // Append the shorter string to the longer string for ($ x = 0; $ x <count ($ str1 ); $ x ++) $ str2 [$ x]. = $ str1 [$ x]; return implode ('', $ str2);} // sample demo: print MergeBetween ('abcdef ','__'). "\ n"; print MergeBetween ('_', 'abcdef '). "\ n"; print MergeBetween ('BB ', 'A '). "\ n"; print MergeBetween ('A', 'BB '). "\ n"; print MergeBetween ('A', 'B '). "\ n";/* Output: a_ B _cdefa_ B _cdefbabaababab */

I hope this article will help you with php programming.