php学习笔记之--php基本语法
php基本语法
目录
1.1PHP语言标记
1.2指令分隔符“分号”
1.3程序中的注释
内容
1.1四种PHP语言标记(同一页面统一风格)
推荐使用这个
?>
=$var ?>
1.2指令分隔符“;”
语句分两种：
一种是功能执行语句（赋值/输出等）
后面一定要加分号
与?>最近一条语句可以不加分号，建议都加分号
一种是结构定义语句（if/for/while/class/function等带大括号的）
后面一定不要加分号
1.3程序中的注释
单行注释 //
脚本注释 #
文档注释 /*
*
*/
多行注释 /* */
注：1.多行注释中不能再包含多行注释
2.注释要写在代码的上面或是右边
注释的作用
1.将以前写过的不合适的代码注释掉
2.写帮助文档
3.调试程序
还有一些PHP常用的一些编程规范：http://www.cnblogs.com/mo-beifeng/archive/2011/10/11/2207187.html
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