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2851

php变量与常量

/ in Blog / by jackson
之前,了解PHP的8个数据类型,继续. 常量英文字母、下划线、数字组成,单不能以数字开头 常量定义: define (string constant_name,mixed value,case_sensitive=true) constant_name:常量名 value:常量值 case_sensitive:可选参数,指定是否大小敏感,设定为true表示不敏感,默认值大小写敏感 获取常量值的2种方法: 1、使用常量名直接获取,2、使用constant()函数 两种方法效果一样,单constant()函数可以动态的输出不同的常量,使用上更灵活 格式为: mixed constant(string const_name) 参数const_name为要获取常量的名称,也可以为存储常量名的变量 判断常量是否已定义? bool defined(string const_name); 例子: define(“message”,”你看得到吗?”) echo message.” “; //输出常量message ecsho MESSAGE.”…
2852

php前戏

/ in Blog / by jackson
认识PHP,了解PHP,熟悉PHP,开发PHP功能.每一个都是一个过程. PHP前戏,接触PHP的开始. php语法部分 8种数据类型: boolean布尔型 例子: $boo=true; if($boo==true) echo ‘变量$boo为 true!’ else echo ‘变量$boo为 false!’ ?> 注意:在php中不是只有false值才为false,在一些特色情况下boolean值也被认为是false,例如:整数0,浮点数0.0 ,字符”0″ ,空白字符串(“”) ,只声明没有赋值 的数组 integer整型 用10进制,8进制,16进制来表示,具体进制的转换得查一下以前的资料 float/double浮点型 string字符串 3种定义方式 $string=’字符串’; $string=’字符串’; $string= <<<…
2853

Bulgarian Translation Services

/ in Blog / by carl
Bulgarian (български език, pronounced: [ˈbɤ̞ɫɡɐrski ɛˈzik]) is an Indo-European language, a member of the Slavic linguistic group. Bulgarian demonstrates several linguistic characteristics that set it apart from all other Slavic…
2854

Breton

/ in Blog / by carl
Breton (Brezhoneg) is a Celtic language spoken in Brittany (Breton: Breizh; French: Bretagne), France. Breton is a Brythonic language, descended from the Celtic British language brought from Great Britain to…
2855

Bosnian

/ in Blog / by carl
Bosnian (Bosanski [bɔ̌sanskiː], Cyrillic: босански) is a name commonly used for Serbo-Croatian as spoken by Bosniaks; as a standardized form of the Shtokavian dialect, it is one of three Serbo-Croatian…
2856

Bihari

/ in Blog / by carl
Bihari is a name given to the western group of Eastern Indic languages, spoken in Bihar and neighboring states in India. Angika, Bajjika, Bhojpuri, Magahi, and Maithili are spoken in…

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