Convert the string into palindrome string by changing only one character | Function to check if it is possible to convert the string into palindrome ; Counting number of characters that should be changed . ; If count of changes is less than or equal to 1 ; Driver Code
< ? php function checkPalindrome ( $ str ) { $ n = strlen ( $ str ) ; $ count = 0 ; for ( $ i = 0 ; $ i < $ n / 2 ; ++ $ i ) if ( $ str [ $ i ] != $ str [ $ n - $ i - 1 ] ) ++ $ count ; return ( $ count <= 1 ) ; } { $ str = " abccaa " ; if ( checkPalindrome ( $ str ) ) echo " Yes " ; else echo " No " ; return 0 ; } ? >