PHP determines if a string is a palindrome string _php tutorial

This article introduces you to an example, to determine whether the string is a palindrome string, there is a need to know the friend can refer to.

The code is as follows	Copy Code
function Ishuiwen ($STR) { $len =strlen ($STR); $l = 1; $k =intval ($len/2) +1; for ($j =0; $j < $k; $j + +) { if (substr ($str, $j, 1)!=substr ($STR, $len-$j -1,1)) { $l = 0; Break } } if ($l ==1) { return 1; } Else { return-1; } } $str = 12321; echo Ishuiwen ($STR); ?>

http://www.bkjia.com/PHPjc/628807.html www.bkjia.com true http://www.bkjia.com/PHPjc/628807.html techarticle This article introduces you to an example, to determine whether the string is a palindrome string, there is a need to know the friend can refer to. Code to copy code like this? PHP function Ishuiwen ...

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