[Solved] Public article previews of member only pages

[[*content]]

[[!ShowContent]]

<?php
/* ShowContent snippet */
if ($modx->user->hasSessionContext('web')) {
   $output = $modx->resource->getContent();
} else {
   $output = $modx->resource->get('introtext');
   /* replace 99 with the ID of the "become a member" page */
   $output .= '
<a href="[[~99]]>Become a member to see more</a>';
}
return $output;

<?php
/* ShowContent snippet */
if ($modx->user->isMember('members-free,members-paid')) {
   $output = $modx->resource->getContent();
} else {
   $output = $modx->resource->get('introtext');
   /* replace 99 with the ID of the "become a member" page */
   $output .= '
<a href="[[~99]]">Become a member to see more</a>';
}
return $output;

<?php
$groups = array(
    'members-paid',
    'members-free',
);

if ($modx->user->isMember($groups)) {
}

[[snippetName? &groups=`members-free,members-paid`]]

<?php
$groups = explode(',', $scriptProperties['groups']);

if ($modx->user->isMember($groups)) {
   $output =  $modx->resource->getContent();
} else {
   $output = $modx->getChunk('join');
}

return $output;

<?php
$groups = array(
    'members-paid',
    'members-free',
);
 
if ($modx->user->isMember($groups)) {
   $output =  $modx->resource->getContent();
} else {
   $output = $modx->resource->get('introtext');
   $output .= $modx->getChunk(joinChunk);
}
 
return $output;

<?php
$groups = array(
'group1',
'group2'
);
 
if ($modx->user->isMember($groups)) {
   $output =  $modx->resource->getContent();
} elseif ($modx->user->isMember('members-free') ){
   $output = $modx->resource->get('introtext');
   $output .= $modx->getChunk(joinChunk);
} else {
   /*redirect to Unauthorized page if they are not logged in on any account*/
}

return $output;

<?php
$groups = array(
'group1',
'group2'
);
  
if ($modx->user->isMember($groups)) {
   $output =  $modx->resource->getContent();
} elseif ($modx->user->isMember('members-free') ){
   $output = $modx->resource->get('introtext');
   $output .= $modx->getChunk(joinChunk);
} else {
  $modx->sendRedirect('614');
}
 
return $output;