PHP explode() – 如何避免空行？

我认为这段代码最后会留下一个空白.如果这是真的,如何避免这种情况？

$text = explode( "\n", $text );
foreach( $text as $str ) { echo $str; }

解决方法:

在爆炸之前修剪文本.

$text = trim($text, "\n");
$text = explode( "\n", $text );
foreach($text as $str) {
    echo $str;
}