What potential issues could arise from cutting off a string at a specific character position?

One potential issue that could arise from cutting off a string at a specific character position is that if the string length is shorter than the specified position, an error may occur. To solve this issue, we can first check if the string length is longer than the specified position before cutting off the string. 

$string = "Hello, world!";
$position = 8;

if(strlen($string) > $position) {
    $newString = substr($string, 0, $position);
} else {
    $newString = $string;
}

echo $newString;

Keywords

substring truncation buffer overflow character encoding data corruption

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