Basic syntax for getting started with php

I haven’t written an article for a while since I started my blog. Today I will introduce the basic syntax of PHP. In terms of syntax, PHP is relatively similar to C++. Okay, let’s not talk nonsense and let’s get straight to the code.

<?php
//php代码必须包含在中间
//有时候?>可以省略，条件是php代码结尾后不再有其他内容
//php中变量无需声明类型
$num = 1;
//if语句
if($num == 1){
    $total = 1;
}else{
    $total = 0;
}
//循环结构
while($total < 10){
    $total++;
}
//当然循环结构还包括for、do while
//下面演示输出内容
echo $total;
//echo用于打印内容，上面的程序输出$total的内容
//自定义函数
function addOne($value){
    $value++;
    return $value;
}
//php中函数不用指定返回类型，return的数据类型可以任意，也可以不return

That’s all for today. Next time I will introduce how to use php for mysql database operations.
H The above introduces the basic grammar of PHP, including the content. I hope that friends who are interested in PHP tutorials are helpful. For more related content, please pay attention to PHP Chinese (www.php.cn)!