pass a binary string from php to JavaScript -


i'm having following php binary string 

$buff=chr(1); $buff.=chr(2); $buff.=chr(0); $buff.=chr(0); $buff.=chr(0); $buff.=chr(6); $buff.=chr(1); $buff.=chr(6); $buff.=chr(0); $buff.=chr(192); $buff.=chr(0); $buff.=chr(1)

and want pass javascript variable follow var buf=<?=$buff?>; displays error

uncaught syntaxerror: invalid or unexpected token

i tried make chr conversion in javascritp using fromcharcode() charcodeat() tostring(2) still same conversion php chr .

what can solution issue ? put var buf=<?= here ?>? pass php string javascript code or how can have equivalent conversion aschr in javascript . solutions have found far have been stated above none of them worked !

help please

thanks

you possibly not enclosing javascript in script tag? want make sure put variable value in quotes.

<?php  $buff=chr(1); $buff.=chr(2); $buff.=chr(0); $buff.=chr(0); $buff.=chr(0); $buff.=chr(6); $buff.=chr(1); $buff.=chr(6); $buff.=chr(0); $buff.=chr(192); $buff.=chr(0); $buff.=chr(1) ?>  <script> var buf="<?=$buff ?>"; console.log(buf); </script>

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