php - SimplePie RSS not accepting variable with comma separated strings -

i'm trying use simplepies "$feed->set_feed_url (array());" function having major difficulty understanding why wont accept values.

when add urls manually (i.e directly below), work fine. feeds go through ok , displays feeds needed.

  $feed ->set_feed_url (array(     'http://www.theverge.com/tag/rss',     'http://feeds.ign.com/ign/all'   )); 

i have urls in database table pulling out normal while loop. append comma , remove trailing comma nice simplepie array. so:

while($row = mysqli_fetch_array($pullallaccountsdoit)){     $result4mdb .= $row[0] . ","; }  $result4mdb = substr($result4mdb, 0, strlen($result4mdb) -1);  echo "the result is: " . $result4mdb; 

when this, , echo out "$result4mdb", prints out: the result is: http://www.gamespot.com/feeds/mashup/,http://www.theverge.com/tag/rss

meaning variable , printing out need. far good. go simplepie code, put in varialble so:

$feed ->set_feed_url (array($result4mdb)); 

and nothing happens. don't errors or anything, page stays blank , nothing comes up.

for testing, gettype($result4mdb); , tells me variable "string" , again, output of variable when echoed urls got database know whole process far working.

for further testing, go database , remove 1 of urls when queried, returns 1 value, , of sudden simplepie works.

i've been searching day , half now, trying different things , googling as possible no avail. cant quite it.

i'm @ wits end. assistance why isn't working greatly appreciated.

thank in advance everyone

you're producing string containing comma seperated values. need array, explode() string:

change:

$feed ->set_feed_url (array($result4mdb)); 

to

$feed ->set_feed_url (explode(',', $result4mdb)); 

more elegant version, change:

while($row = mysqli_fetch_array($pullallaccountsdoit)){     $result4mdb .= $row[0] . ","; } 

to

while($row = mysqli_fetch_array($pullallaccountsdoit)){     $result4mdb[] = $row[0]; } 

this way you're not creating string needs exploeded, create array @ first.