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I am trying to send something to serial port (r232) with PHP. I am using this class: http://www.phpclasses.org/browse/package/3679.html
The problem is that I am allowed to send only 1 byte. But if I send something like ‘1’, I am actually sending 49 (ASCII for 1). Instead of send(‘1’), I tried with send(1) but it is no good, because this is integer which has 2 bytes. So is there a way to send a ‘real’ char, not ASCII equivalent?
The chr() function returns a character given by the integer for the corresponding ascii character.