redefinition problem when extending PHP in C + + with function redefinition

Question: When I extend PHP in C + +, I use some math library functions such as SQR,SQRT, which need to include in the source file test.cpp of the C + + extension project , but at compile time, these functions are found to have problems with redefining redefinition.

After several attempts, it is found that the test.cpp beginning of the # include "Php.h" is removed, there is no such a problem

Reason: query learned that, because Php.h, many C + + library functions have done inline inline, Defined directly in Php.h, resulting in a function definition with the same name in the C + + library function file Stdio.h is identified as a redefinition (the inline-decorated function is not allowed in other file definitions)

Resolves: C + + header files with redefined functions are written in # include " Php.h "Before the inline function is masked, the position in Test.cpp is as follows:

 #ifdef have_config_h#include" Config.h "#endif  #include 
    
      #include 
     
       #include 
      
        #include 
        #inclu De 
        
          #include 
         
           #include 
           
           
           
         
       
      
      #include "php.h" #include "php_ini.h" #include "Ext/standar D/info.h "#include" php_nearestneighbors.h "

Copyright notice: This article for Bo Master original article, without the permission of Bo Master not reproduced.

The above describes the extension of PHP in C + + when the function redefined redefinition issues, including aspects of the content, I hope to be interested in PHP tutorial friends helpful.

