(PHP implementation) only use ++ operations to implement addition, subtraction, multiplication, division _ PHP Tutorial-php Tutorial

(Implemented in PHP) only the ++ operation is used to implement addition, subtraction, multiplication, and division. The code for adding and copying the code is as follows: functionjiafa ($ a, $ B) {for ($ i0; $ I $ B; $ I ++) {$ a ++ ;} return $ a;} echojiafa (); the code for copying by subtraction is as follows: functionjianfa ($ a, $ B) {$ Addition

The code is as follows:

Function jiafa ($ a, $ B)
{
For ($ I = 0; $ I <$ B; $ I ++)
{
$ A ++;
}
Return $;
}
// Echo jiafa (4, 2 );

Subtraction

The code is as follows:

Function jianfa ($ a, $ B)
{
$ C = 0;
While ($ B! = $)
{
$ B ++;
$ C ++;
}
Echo $ c;
} // End func
// Jianfa (10, 3 );

Multiplication

The code is as follows:

Function chengfa ($ a, $ B)
{
$ C = 0;
For ($ j = 0; $ j <$ B; $ j ++)
{
$ C = jiafa ($ c, $ );
}
Return $ c;
} // End func
// Chengfa (9, 3 );

Division

The code is as follows:

Function chufa ($ d, $ e)
{
$ K = 0;
$ F = 0;
While ($ f <$ d)
{
$ K ++;
$ F = chengfa ($ e, $ k );

}
Return $ k;
} // End func
Echo chufa (16, 2 );

The pipeline code is as follows: function jiafa ($ a, $ B) {for ($ I = 0; $ I $ B; $ I ++) {$ a ++ ;} return $ a;} // echo jiafa (); the subtraction code is as follows: function jianfa ($ a, $ B) {$...