Modifying the output of a template variable

38 Posts

psypha Reply #1, 12 years ago

Hello,

I've been reading through the documentation on modifying TV output and decided to enquire for some insight.

Essentially I have a TV that the user has to input a 3 digit (max) product code relating to a particular product. The TV is then used at a certain point to form part of a URL link string.

Depending on the country, the product code for an item may vary, thankfully only a few select items it seems.

Here is some psedudo code for my scenario:

[[*productcode]] = userinput;

if [[*productcode]] contains preceding 0 // e.g. '045' {
remove preceding 0; // will remove 0 to yield 45
}
else
return [[*productcode]];

Thanks

60 Posts

DasItsch Reply #2, 12 years ago

Create a new Snippet and name it removeLeadingZero

// remove first zero from String (001 => 01)
$output = preg_replace("/^0/i", "", $input);

// remove all leading zeros from String (001 => 1)
// $output = preg_replace("/^0+/i", "", $input); 

return $output;

Then you can use it as an output filter on your TV

[[*productcode:removeLeadingZero]]

24,544 Posts

BobRay Reply #3, 12 years ago

If you want to remove *all* leading zeros, this one-line snippet should be faster:

return (ltrim($input, '0'));

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