Updateing a section of string

[Anon]

Hello

Im trying to update part of a string, but having no luck!

My string is in the form:

name,quant,size,color:name,quant,size,color:....etc

(They are not fixed lenghths)

I need to change everything between:

name, and ,size
(basically the quant)

Can I do this?

[Anon]

Yes, there are many ways of doing this.

One example would be using explode to divide the string into sections;

<?
$str = "name1,quant1,size1,color1:name2,quant2,size2,color2";

$expStr = explode(":", $str);
// $expStr is now an array containing each element (divided by 🙂 from $str

$resultArray = array();
foreach ($expStr AS $value) {
$tmpExp = explode(",", $value);
// $tmpExp is now each element in current element of $expStr
// $tmpExp[0] = name
// $tmpExp[1] = quant
// $tmpExp[2] = size
// $tmpExp[3] = color

$tmpExp[1] = "newQuant";

$resultArray[] = implode(",", $tmpExp);
}

$resultString = implode(":", $resultArray);
print $resultString;
?>

Outputs;
name1,newQuant,size1,color1:name2,newQuant,size2,color2

Kaboom, you have modified all quants to newQuant. You might want to get into regexps though!