Payment Taker

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if ($id == null || $field == null) { ...
    // $id or $field is missing
    return "Missing id or field attribute";
} elseif ($modx->getObject('modResource', ["id" => $id]) == null) {
    // Object doesn't exist
    return "Object with id $id does not exist"; 
}
 
// Safely get object
$resource = $modx->getObject('modResource', ["id" => $id]); 
 
// Get template variable if $field starts with tv.*
if (str_starts_with($field, 'tv.')) { ...
    // Parse out the 'tv.'
    $tv_field = substr($field, 3);
    // Return the template variable value
    return $resource->getTVValue($tv_field); 
}
 
// Otherwise just return the field value
return $resource->get($field);
if ($id == null || $field == null) { // [tl! collapse:start]
    // $id or $field is missing
    return "Missing id or field attribute";
} elseif ($modx->getObject('modResource', ["id" => $id]) == null) {
    // Object doesn't exist
    return "Object with id $id does not exist"; // [tl! collapse:end]
}

// Safely get object
$resource = $modx->getObject('modResource', ["id" => $id]); // [tl! focus]

// Get template variable if $field starts with tv.*
if (str_starts_with($field, 'tv.')) { // [tl! collapse:start]
    // Parse out the 'tv.'
    $tv_field = substr($field, 3);
    // Return the template variable value
    return $resource->getTVValue($tv_field); // [tl! collapse:end]
}

// Otherwise just return the field value
return $resource->get($field);

Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.