welltoncosta
63 linhas
2.0 KiB
PHP
63 linhas
2.0 KiB
PHP
<?php
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ini_set('display_errors',1);
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ini_set('display_startup_erros',1);
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error_reporting(E_ALL);
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function CodigoBarras($code) {
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$lw = 2; $hi = 40;
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$Lencode = array('0001101','0011001','0010011','0111101','0100011',
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'0110001','0101111','0111011','0110111','0001011');
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$Rencode = array('1110010','1100110','1101100','1000010','1011100',
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'1001110','1010000','1000100','1001000','1110100');
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$ends = '101'; $center = '01010';
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/* UPC-A Must be 11 digits, we compute the checksum. */
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if ( strlen($code) != 11 ) { die("UPC-A Must be 11 digits."); }
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/* Compute the EAN-13 Checksum digit */
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$ncode = '0'.$code;
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$even = 0; $odd = 0;
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for ($x=0;$x<12;$x++) {
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if ($x % 2) { $odd += $ncode[$x]; } else { $even += $ncode[$x]; }
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}
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$code.=(10 - (($odd * 3 + $even) % 10)) % 10;
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/* Create the bar encoding using a binary string */
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$bars=$ends;
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$bars.=$Lencode[$code[0]];
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for($x=1;$x<6;$x++) {
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$bars.=$Lencode[$code[$x]];
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}
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$bars.=$center;
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for($x=6;$x<12;$x++) {
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$bars.=$Rencode[$code[$x]];
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}
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$bars.=$ends;
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/* Generate the Barcode Image */
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$img = ImageCreate($lw*95+30,$hi+30);
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$fg = ImageColorAllocate($img, 0, 0, 0);
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$bg = ImageColorAllocate($img, 240, 240, 240);
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ImageFilledRectangle($img, 0, 0, $lw*95+30, $hi+30, $bg);
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$shift=10;
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for ($x=0;$x<strlen($bars);$x++) {
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if (($x<10) || ($x>=45 && $x<50) || ($x >=85)) { $sh=10; } else { $sh=0; }
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if ($bars[$x] == '1') { $color = $fg; } else { $color = $bg; }
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ImageFilledRectangle($img, ($x*$lw)+15,5,($x+1)*$lw+14,$hi+5+$sh,$color);
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}
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/* Add the Human Readable Label */
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ImageString($img,4,5,$hi-5,$code[0],$fg);
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for ($x=0;$x<5;$x++) {
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ImageString($img,5,$lw*(13+$x*6)+15,$hi+5,$code[$x+1],$fg);
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ImageString($img,5,$lw*(53+$x*6)+15,$hi+5,$code[$x+6],$fg);
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}
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ImageString($img,4,$lw*95+17,$hi-5,$code[11],$fg);
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/* Output the Header and Content. */
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header("Content-Type: image/png");
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ImagePNG($img);
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}
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$codigoBarra = $_GET['codigoBarra'];
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CodigoBarras($codigoBarra);
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?>
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