Php numbers are flushed into strings

Php numbers are flushed into strings. This post was last edited by sevencolours24 from 2013-02-2617: 03: 54. I want to organize a string. put a UINT in the first four bytes, for example, 65*256 + 97, then the result displayed in byte order is "Aa @ abc". for example, I have defined $ a = 65*2 php numbers to be flushed into the string.
This post was edited by sevencolours24 at 17:03:54. I want to organize a string. put the first four bytes in a UINT, for example, 65*256 + 97, followed by a string "@ abc"
The result displayed in byte order is "Aa @ abc"
For example, I define $ a = 65*256 + 97, $ B = "@ abc"
There is a variable $ c. how can I put $ a and $ B in $ c to display it as "Aa @ abc"
------ Solution --------------------
Process $ a with pack ()
Or split $ a into high and low bits, each taking the chr () value, and then splicing