define——定义常量,若定义true,则读取时不区分大小写 bool define( string name, mixed value [, bool case_insensitive]) 常量只能包含标量数据(boolean,integer,float和string)。 define("CONSTANT","Hello world."); echoCONSTANT;// outputs "Hello world." echoConstant;// outputs "Constant" and issues ...
Define constant in a function : Definition « Functions « PHPPHP Functions Definition Define constant in a function <?php define('CONST1', 1); function MyTest() { define('CONST2', 2); } MyTest(); echo "CONST1 = " . CONST1 . " and CONST2 = " . CONST2 . "\n"; ?> ...
// To define the constant A\B\C\FOO: const FOO = 'BAR'; define('A\B\C\FOO', 'BAR'); PHP 5.6 const 常数也可以是阵列 define() 不支持阵列。但是,PHP 7中的这两种情况都将支持阵列。 const FOO = [1, 2, 3]; // Valid in PHP 5.6 define('FOO', [1, 2, 3]); // Invalid in...
1 private static string VisitConstantExpression(ConstantExpression func) 2 { 3 var result = ""; 4 if (func.Value.GetType() == typeof(String)) 5 { 6 result += "'" + (func.Value.ToString()) + "'"; 7 } 8 else if (func.Value.GetType() == typeof(Int32)) 9 { 10 result +=...
constant in your program. The two forms of the syntax are: Syntax #define identifier token-stringopt #define identifier[( identifieropt, ... , identifieropt )] token-stringopt Usage[用法]: 1.简单的define定义 #define MAXTIME 1000 一个简单的MAXTIME 就定义好了,它代表1000,如果在程序里面写 ...
The const is used to define a constant in C#.Learn & Test Your Skills Python MCQsJava MCQsC++ MCQsC MCQsJavaScript MCQsCSS MCQsjQuery MCQsPHP MCQsASP.Net MCQsArtificial Intelligence MCQsData Privacy MCQsData & Information MCQsData Science MCQs Comments and Discussions! Load comments ↻ Recently...
case_insensitiveOptional. Specifies whether the constant name should be case-insensitive. Possible values: TRUE - Case-insensitive (deprecated in PHP 7.3) FALSE - Case-sensitive (this is default) Technical Details Return Value:Returns TRUE on success or FALSE on failure ...
The PHPdefine()function can also be used to create a constant array, here is an example: define("cities", ["New Delhi","Mumbai","Banglore"]); Learn & Test Your Skills Python MCQsJava MCQsC++ MCQsC MCQsJavaScript MCQsCSS MCQsjQuery MCQsPHP MCQsASP.Net MCQs ...
简单的宏主要用来定义那些被Kernighan和Ritchie称为“明示常量”(manifest constant)的东西。使用宏,我们可以给数值、字符和字符串命名。 1#defineSTE_LEN 802#defineTRUE 13#defineFALSE 04#definePI 3.141595#defineCR '\r'6#defineEOS '\0' 使用#define来为常量命名有许多显著的优点: ...
In OBLOADER V3.x, the field mapping feature of map files is integrated into control files. Map files are no longer supported. Example: lang=java( C1 "NONE" map(1), C2 "NONE" map(1), // Multi-column mapping C3 "CONSTANT('xxx')", // xxx is a specified constant. C4 "SEQUENCE(...