PREG_SPLIT_NO_EMPTY——返回分隔后的非空部分。到底是什么意思啊?
我写了以下代码,两者没有区别:
$keywords = preg_split("/[\s,]+/","hypertext language ,programming",2);
foreach( $keywords as $key => $value )
{
echo "$key:$value<br/>";
}
echo "<br />";
$keywords = preg_split("/[\s,]+/","hypertext language ,programming ",2,PREG_SPLIT_NO_EMPTY);
foreach( $keywords as $key => $value )
{
echo "$key:$value<br/>";
}
echo "<br />";