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php question string manipulation?
i've been playing with php for a month now
just need a li'l help :)
say i fetched a string in my table
$strStudID = $row['studid'];
returned: $strStudID = "DS-00099";
how can I increment that value to 1 so
that it would return "DS-00100"
i am really new to php and don't know
what functions to use to solve my problem
any help please?
Thans in Advance :)
2 Answers
- General CucombreLv 61 decade agoFavorite Answer
//
// The following code will work for any patterns
// that end with number - for example,
// XYZZ-1030303 - it will produce the string following
// the same format
$strStudID = "DS-00099";
if (preg_match('/^(.*[^0-9])([0-9]+)$/', $strStudID, $parts)) {
$prefix = $parts[1];
$number = $parts[2];
$length = strlen($number);
$nextID = $prefix . sprintf("%0${length}d", $number+1);
print "$nextID\n";
} else {
print "ID format was not recognized: $strStudID\n";
}
