单选题
1.<?php
echo strrpos(“You love php,I love php too.”,”php”);
?>
结果是?()
A.21
B.10
C.false
2.<?php
echo strrpos(“You love php,I love php too.”,”PHP”);
?>
结果是?()
A.21
B.10
C.false
3.<?php
echo strpos(“You love php,I love php too.”,”php”);
?>
结果是?()
A.21
B.9
C.false
4.<?php
echo strripos(“You love php,I love php too.”,”PHP”);
?>