Android Question Help Required in PHP Function

echo AsciiSwitch("hello", 3);

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function AsciiSwitch($InputString, $ValueToAdd) {
    $InputArray = str_split($InputString);
    $OutputString = "";
    for($i = 0; $i < count($InputArray); ++$i) {
        $OutputString = $OutputString . Chr(Ord($InputArray[$i]) + $ValueToAdd);
    }
    return $OutputString;
}

TheRnker said:

I use this function to do a basic encryption on my data.

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Sandman said:

Please note that what you're doing is using a Caesar cipher, which Julius Caesar used some time around 50BC. To say it's insecure is an understatement. If you're using this to hide information from small children, it's probably fine, but you might want to read up on other alternatives on encryption here in the forum for all other uses. I believe I've seen some solution where there's also a matching piece of php code to use.

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FrostCodes said:

Another implementation:

<?php
function AsciiSwitch($InputString, $ValueToAdd){
$OutputString = "";

for ($i = 0; $i <= strlen($InputString) - 1; $i++) {
$c = $InputString[$i];
       $OutputString = $OutputString. chr(ord($c) + $ValueToAdd);
}

return $OutputString;
}


$a= AsciiSwitch('frost hello hi', 12);

echo $a.'<br>';

echo 'ORGINAL is:  '. AsciiSwitch($a, -12);

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