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Fatal error:cannot redeclare db_connect () (previously declared in D:/wamp/www/flex/new/mysql_inc.php:7) in D:/wamp/www/ flex/new/mysql_inc.php on line 20 The workaround is as follows: 1. Do you have an include or require in the source code

First, the constPHP5.3 Previously, const can only declare variables inside a class, 5.3+ allows variables to be declared externally, but cannot be evaluated with constants!Const one = 1; Const WORD = ' Hello World ';PHP5.6 Start, const supports

As a junior students, will soon go to internship, but always feel that they even a beginner novice is inferior, hey. Found himself even the threshold of the programmer has not entered, a little sad, but sad useless, hard forward is what we should do

IOS8 previously used corelocation positioning1, first define a global variable to record Cllocationmanager object, introduce corelocation.framework use #import 1@property (nonatomic, strong) Cllocationmanager *locationmanager; 2. Initialize the

5, Configuration Plsql A 64-bit Oracle database is installed on a 64-bit system, but there is no corresponding 64-bit PL/SQL Developer, and it is not possible to use PL/SQL Developer for direct connection, so the connection needs to

OTL Introduction:OTL is an abbreviation for Oracle, the ODBC and Db2-cli Template Library, which is a templates repository for manipulating relational databases in C + + compilation, which currently supports virtually all current mainstream

Difference between typedef and define   The following code is used to describe Typedef char * typedef_char;# Define define_char char * // No semicolon here Void main (INT argc, char * argv []){Char s [] = "ASDF ";Const typedef_char P = s; // char *

  Original article address: Http://blog.csdn.net/kindazrael/article/details/8108868 In C, Preprocessor is a powerful tool that makes your code easier to read and modify. With preprocessing code, you can redefine a part of the code to make your code

Windows8 installation Oracle11.2.0.1Operating system: Windows 8 Enterprise Edition 64bitoracle:11.2.0.1 64bit1. Oracle Win 64-bit

Original article address: Http://blog.csdn.net/kindazrael/article/details/8108868  Objective-C: # define Usage Analysis In C, Preprocessor is a powerful tool that makes your code easier to read and modify. With preprocessing code, you can redefine a