From 87526928ec48f02933cb182e94fe30cda82ae903 Mon Sep 17 00:00:00 2001 From: gnieark Date: Sat, 14 Nov 2015 22:00:41 +0100 Subject: [PATCH] 4 --- euler4.php | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) create mode 100644 euler4.php diff --git a/euler4.php b/euler4.php new file mode 100644 index 0000000..28e3a5f --- /dev/null +++ b/euler4.php @@ -0,0 +1,22 @@ +99;$i--){ + for($j=1000;$j>99;$j--){ + $prod=$i*$j; + if ((isPalindrome($prod)) && ($prod>$pal)) { + $pal=$prod; + } + } +} +echo $pal; + +function isPalindrome($number){ + if(strrev(strval($number)) == strval($number)){ + return true; + } +} \ No newline at end of file