abstract:两个整数相加的函数:<?phpfunction add($a,$b){ return "$a + $b = ".($a + $b);}echo add(5,6);
两个整数相加的函数:
<?php
function add($a,$b){
return "$a + $b = ".($a + $b);
}
echo add(5,6);
Correcting teacher:天蓬老师Correction time:2019-06-03 09:30:49
Teacher's summary:在php 7+中, 支持类型限定
function add(int $a,$b) : int
{
return "$a + $b = ".($a + $b);
}