Artems-code/printlib
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dev #1

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artemuhi merged 3 commits from dev into main 2024-05-01 10:38:27 +03:00
Conversation 0 Commits 3 Files Changed 1 +35
1 changed files with 35 additions and 0 deletions
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35
printlib.php
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@ -90,4 +90,39 @@ function printean8($data) {
return false;
}
}
function rawdlen($data) {
$len = strlen($data);
$l = ($len + 3) % 256;
$h = intdiv($len, 256);
if ($l<16) {
$l=hex2bin("0" . dechex($l));
} else {
$l=hex2bin(dechex($l));
}
if ($h<16) {
$h=hex2bin("0" . dechex($h));
} else {
$h=hex2bin(dechex($h));
}
return $l . $h;
}
function printqr($data, $size = 8) {
if (strlen($data)<7088) {
if ($size<16) {
$encs=hex2bin("0" . dechex($size));
} else {
$encs=hex2bin(dechex($size));
}
$lp=fopen("/dev/usb/lp0", 'w');
fwrite($lp, GS . "(k\x04\x00\x31\x41\x32\x00");
fwrite($lp, GS . "(k\x03\x00\x31\x43" . $encs);
fwrite($lp, GS . "(k\x03\x00\x31\x45\x30");
fwrite($lp, GS . "(k" . rawdlen($data) . "\x31\x50\x30" . $data);
fwrite($lp, GS . "(k\x03\x00\x31\x51\x30");
#fwrite($lp, "\x0a");
fclose($lp);
} else {
return false;
}
}
?>