Compare Two Strings ising implode() and aray_map() Functions
In this section, compare two strings using the implode() and array_map() functions in PHP. Steps to compare two strings:
- Convert each string into an array of characters using
str_split() function. - Use
array_map() functionto compare each corresponding character in the two arrays. - Use
implode() functionto concatenate the results of the comparison into a single string. - Check if the resulting string contains only “1” (which indicates that all characters are equal) to determine if the two strings are the same.
PHP
<?php function compareStr($str1, $str2) { $arr1 = str_split($str1); $arr2 = str_split($str2); $result = array_map(function($char1, $char2) { return $char1 === $char2 ? '1' : '0'; }, $arr1, $arr2); $comparisonResult = implode('', $result); return strpos($comparisonResult, '0') === false; } // Driver code $str1 = "Geeks"; $str2 = "Geeks"; $str3 = "Hello"; echo (compareStr($str1, $str2) ? "Equal" : "Not Equal") . "\n"; echo compareStr($str1, $str3) ? "Equal" : "Not Equal"; ?> |
Output
Equal Not Equal
In this program, the compareStr() function takes two strings as input and returns true if they are equal and false otherwise.
How to Compare Two Strings without using strcmp() function in PHP ?
Comparing two strings is a common operation in programming. In PHP, the strcmp() function is typically used to compare two strings. However, there may be situations where you need to compare strings without using this built-in function, such as for learning purposes or to meet specific constraints. In this article, we will explore different approaches to comparing two strings in PHP without using the strcmp() function.
Table of Content
- Compare Two Strings using a Loop
- Compare Two Strings using Array Functions
- Compare Two Strings using a Hashing Function
- Compare Two Strings ising implode() and aray_map() Functions