导语：PHP语法汲取了C语言、Java和Perl的特点，利于学习，使用遍及，次要合用于Web开发范畴。下面是PHP语言根蒂根基人们常识，欢送参考!
1. 代码嵌在内
2.输出函数echo,相当于js中的document.write
3.可以在打印双引号时用单引号大概在打印双引号时使用单引号。
echo 'She said,"how you are?"';
echo "she said,'how you are?'";
4.在同样的引号大概打印必要本义的'标记可使用,echo 'I 'm just ducky.'; echo"she said,"How are you?"";
5.解释保举使用shell作风，#this is a comment
6.变量同c，后面有$.
echo $money;
echo "hello,$money";
7.连接字符串 $aa = "sdfs";$bb = "fsdfs"; $cc = $aa.$bb;
$cc = $cc."fsdfs";
8.关于数字
$n = 2.13;
$n = round$n; //3 四舍五入
$n = 3.13141;
$n = round$n,3; //3.131保存位数的四舍五入
$n = number_format$n; //加分开符
$n = number_format$n,4;//设置位数的加联系符
8.关于数字
$n = 2.13;
$n = round$n; //3 四舍五入
$n = 3.13141;
$n = round$n,3; //3.131保存位数的四舍五入
$n = number_format$n; //加分开符
$n = number_format$n,4;//设置位数的加联系符
9.常量
define'NAME','VALUE';
echo NAME;
10.get用于倡议数据哀求，post用户单向发送数据