PHP取值代码如下

$phpbcnames = preg_split('/rn/',$_POST['textarea']);
foreach($phpbcnames as $name){
     // todo something eg: echo $name;
 }

PHP向textarea输出换行符

$vals = get_from_mydb();
 $tmp = '';
 foreach($vals as $val){
     $tmp .= $val.'
';
 }