explode切割foreach循环输出，加个条件包含某字符就不输出这个组

$navinfor[down]='aaa$$$http://$$$ccc$$$ddd';$downzu = explode("$$$",$navinfor[down]);	foreach($downzu as $k=>$v){ $downno=$k+1; echo $downno.'=';echo $v.'
';}

需要输出的是
1=aaa
2=ccc
3=ddd

条件包含http就清掉不作输出

回复讨论(解决方案)

$navinfor['down']='aaa$$$http://$$$ccc$$$ddd';$downzu = explode("$$$",$navinfor['down']);$downno = 0; foreach($downzu as $k=>$v){  if(strpos($v, 'http') !== false) continue;  $downno++;   echo $downno.'=';  echo $v.'
';}

1=aaa
2=ccc
3=ddd