想知道以下两种执行形式,哪种效率更高,或是有更高的方法!!!
输出形式1
echo "....2";
echo "....3";
echo "....4";
echo "....5";
echo "....6";
echo "....7";
输出形式2
$str.="....2";
$str.="....3";
$str.="....4";
$str.="....5";
$str.="....6";
$str.="....7";
echo $str;
输出形式1
echo "....2";
echo "....3";
echo "....4";
echo "....5";
echo "....6";
echo "....7";
输出形式2
$str.="....2";
$str.="....3";
$str.="....4";
$str.="....5";
$str.="....6";
$str.="....7";
echo $str;
http://blog.csdn.net/php_boy/article/details/6450678
str拼接,是比较耗效率和内存的可以
echo '...a','...b','...c'//这个方式