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Script for Bar Code support in PHP
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<?php | |
/* | |
* Author David S. Tufts | |
* Company davidscotttufts.com | |
* | |
* Date: 05/25/2003 | |
* Usage: <img src="/barcode.php?text=testing" alt="testing" /> | |
* | |
* Code 128 edited with a loop for adding Function Key feature in the code | |
* Add <CODE> in text for add the function key, like <HT> for Tab and <BS> for Backspace. | |
* By Mathieu Légaré, levelKro, levelkro.com, 12/2021 | |
*/ | |
// For demonstration purposes, get pararameters that are passed in through $_GET or set to the default value | |
$filepath = (isset($_GET["filepath"])?$_GET["filepath"]:""); | |
$text = (isset($_GET["text"])?$_GET["text"]:"0"); | |
$size = (isset($_GET["size"])?$_GET["size"]:"20"); | |
$orientation = (isset($_GET["orientation"])?$_GET["orientation"]:"horizontal"); | |
$code_type = (isset($_GET["codetype"])?$_GET["codetype"]:"code128a"); | |
$print = (isset($_GET["print"])&&$_GET["print"]=='true'?true:false); | |
$sizefactor = (isset($_GET["sizefactor"])?$_GET["sizefactor"]:"1"); | |
// This function call can be copied into your project and can be made from anywhere in your code | |
barcode( $filepath, $text, $size, $orientation, $code_type, $print, $sizefactor ); | |
function barcode( $filepath="", $text="0", $size="20", $orientation="horizontal", $code_type="code128", $print=false, $SizeFactor=1 ) { | |
$code_string = ""; | |
// Translate the $text into barcode the correct $code_type | |
if ( in_array(strtolower($code_type), array("code128", "code128b")) ) { | |
$chksum = 104; | |
// Must not change order of array elements as the checksum depends on the array's key to validate final code | |
$code_array = array(" "=>"212222","!"=>"222122","\""=>"222221","#"=>"121223","$"=>"121322","%"=>"131222","&"=>"122213","'"=>"122312", | |
"("=>"132212",")"=>"221213","*"=>"221312","+"=>"231212",","=>"112232","-"=>"122132","."=>"122231","/"=>"113222","0"=>"123122","1"=>"123221", | |
"2"=>"223211","3"=>"221132","4"=>"221231","5"=>"213212","6"=>"223112","7"=>"312131","8"=>"311222","9"=>"321122",":"=>"321221",";"=>"312212", | |
"<"=>"322112","="=>"322211",">"=>"212123","?"=>"212321","@"=>"232121","A"=>"111323","B"=>"131123","C"=>"131321","D"=>"112313","E"=>"132113", | |
"F"=>"132311","G"=>"211313","H"=>"231113","I"=>"231311","J"=>"112133","K"=>"112331","L"=>"132131","M"=>"113123","N"=>"113321","O"=>"133121", | |
"P"=>"313121","Q"=>"211331","R"=>"231131","S"=>"213113","T"=>"213311","U"=>"213131","V"=>"311123","W"=>"311321","X"=>"331121","Y"=>"312113", | |
"Z"=>"312311","["=>"332111","\\"=>"314111","]"=>"221411","^"=>"431111","_"=>"111224","\`"=>"111422","a"=>"121124","b"=>"121421","c"=>"141122", | |
"d"=>"141221","e"=>"112214","f"=>"112412","g"=>"122114","h"=>"122411","i"=>"142112","j"=>"142211","k"=>"241211","l"=>"221114","m"=>"413111", | |
"n"=>"241112","o"=>"134111","p"=>"111242","q"=>"121142","r"=>"121241","s"=>"114212","t"=>"124112","u"=>"124211","v"=>"411212","w"=>"421112", | |
"x"=>"421211","y"=>"212141","z"=>"214121","{"=>"412121","|"=>"111143","}"=>"111341","~"=>"131141", | |
"DEL"=>"114113","FNC 3"=>"114311","FNC 2"=>"411113","SHIFT"=>"411311","CODE C"=>"113141", | |
"FNC 4"=>"114131","CODE A"=>"311141","FNC 1"=>"411131", | |
"Start A"=>"211412","Start B"=>"211214","Start C"=>"211232","Stop"=>"2331112"); | |
$code_keys = array_keys($code_array); | |
$code_values = array_flip($code_keys); | |
$remove=array(); | |
for ( $X = 1; $X <= strlen($text); $X++ ) { | |
$activeKey = substr( $text, ($X-1), 1); | |
if($activeKey=="<"){ | |
$i=1; | |
$ix=$X; | |
$tst=""; | |
while($tst!=">"){ | |
$ix++; | |
$i++; | |
$tst=substr( $text, ($ix-1), 1); | |
} | |
$activeKey = substr( $text, ($X), ($i-2)); | |
$cx=(($X-1)+($i)); | |
$text=substr($text,0,($X-1)).'?'.substr($text,$cx); | |
} | |
$code_string .= $code_array[$activeKey]; | |
$chksum=($chksum + ($code_values[$activeKey] * $X)); | |
} | |
$code_string .= $code_array[$code_keys[($chksum - (intval($chksum / 103) * 103))]]; | |
$code_string = "211214" . $code_string . "2331112"; | |
} elseif ( strtolower($code_type) == "code128a" ) { | |
$chksum = 103; | |
$text = strtoupper($text); // Code 128A doesn't support lower case | |
// Must not change order of array elements as the checksum depends on the array's key to validate final code | |
$code_array = array(" "=>"212222","!"=>"222122","\""=>"222221","#"=>"121223","$"=>"121322","%"=>"131222","&"=>"122213","'"=>"122312","("=>"132212",")"=>"221213","*"=>"221312","+"=>"231212", | |
","=>"112232","-"=>"122132","."=>"122231","/"=>"113222","0"=>"123122","1"=>"123221","2"=>"223211","3"=>"221132","4"=>"221231","5"=>"213212","6"=>"223112","7"=>"312131","8"=>"311222","9"=>"321122", | |
":"=>"321221",";"=>"312212","<"=>"322112","="=>"322211",">"=>"212123","?"=>"212321","@"=>"232121","A"=>"111323","B"=>"131123","C"=>"131321","D"=>"112313","E"=>"132113","F"=>"132311","G"=>"211313", | |
"H"=>"231113","I"=>"231311","J"=>"112133","K"=>"112331","L"=>"132131","M"=>"113123","N"=>"113321","O"=>"133121","P"=>"313121","Q"=>"211331","R"=>"231131","S"=>"213113","T"=>"213311","U"=>"213131", | |
"V"=>"311123","W"=>"311321","X"=>"331121","Y"=>"312113","Z"=>"312311","["=>"332111","\\"=>"314111","]"=>"221411","^"=>"431111","_"=>"111224","NUL"=>"111422","SOH"=>"121124","STX"=>"121421", | |
"ETX"=>"141122","EOT"=>"141221","ENQ"=>"112214","ACK"=>"112412","BEL"=>"122114","BS"=>"122411","HT"=>"142112","LF"=>"142211","VT"=>"241211","FF"=>"221114","CR"=>"413111","SO"=>"241112","SI"=>"134111", | |
"DLE"=>"111242","DC1"=>"121142","DC2"=>"121241","DC3"=>"114212","DC4"=>"124112","NAK"=>"124211","SYN"=>"411212","ETB"=>"421112","CAN"=>"421211","EM"=>"212141","SUB"=>"214121", | |
"ESC"=>"412121","FS"=>"111143","GS"=>"111341","RS"=>"131141","US"=>"114113","FNC 3"=>"114311","FNC 2"=>"411113","SHIFT"=>"411311","CODE C"=>"113141", | |
"CODE B"=>"114131","FNC 4"=>"311141","FNC 1"=>"411131","Start A"=>"211412","Start B"=>"211214","Start C"=>"211232","Stop"=>"2331112"); | |
$code_keys = array_keys($code_array); | |
$code_values = array_flip($code_keys); | |
for ( $X = 1; $X <= strlen($text); $X++ ) { | |
$activeKey = substr( $text, ($X-1), 1); | |
if($activeKey=="<"){ | |
$i=1; | |
$ix=$X; | |
$tst=""; | |
while($tst!=">"){ | |
$ix++; | |
$i++; | |
$tst=substr( $text, ($ix-1), 1); | |
} | |
$activeKey = substr( $text, ($X), ($i-2)); | |
$cx=(($X-1)+($i)); | |
$text=substr($text,0,($X-1)).'?'.substr($text,$cx); | |
} | |
$code_string .= $code_array[$activeKey]; | |
$chksum=($chksum + ($code_values[$activeKey] * $X)); | |
} | |
$code_string .= $code_array[$code_keys[($chksum - (intval($chksum / 103) * 103))]]; | |
$code_string = "211412" . $code_string . "2331112"; | |
} elseif ( strtolower($code_type) == "code39" ) { | |
$code_array = array("0"=>"111221211","1"=>"211211112","2"=>"112211112","3"=>"212211111","4"=>"111221112","5"=>"211221111","6"=>"112221111","7"=>"111211212","8"=>"211211211","9"=>"112211211","A"=>"211112112","B"=>"112112112","C"=>"212112111","D"=>"111122112","E"=>"211122111","F"=>"112122111","G"=>"111112212","H"=>"211112211","I"=>"112112211","J"=>"111122211","K"=>"211111122","L"=>"112111122","M"=>"212111121","N"=>"111121122","O"=>"211121121","P"=>"112121121","Q"=>"111111222","R"=>"211111221","S"=>"112111221","T"=>"111121221","U"=>"221111112","V"=>"122111112","W"=>"222111111","X"=>"121121112","Y"=>"221121111","Z"=>"122121111","-"=>"121111212","."=>"221111211"," "=>"122111211","$"=>"121212111","/"=>"121211121","+"=>"121112121","%"=>"111212121","*"=>"121121211"); | |
// Convert to uppercase | |
$upper_text = strtoupper($text); | |
for ( $X = 1; $X<=strlen($upper_text); $X++ ) { | |
$code_string .= $code_array[substr( $upper_text, ($X-1), 1)] . "1"; | |
} | |
$code_string = "1211212111" . $code_string . "121121211"; | |
} elseif ( strtolower($code_type) == "code25" ) { | |
$code_array1 = array("1","2","3","4","5","6","7","8","9","0"); | |
$code_array2 = array("3-1-1-1-3","1-3-1-1-3","3-3-1-1-1","1-1-3-1-3","3-1-3-1-1","1-3-3-1-1","1-1-1-3-3","3-1-1-3-1","1-3-1-3-1","1-1-3-3-1"); | |
for ( $X = 1; $X <= strlen($text); $X++ ) { | |
for ( $Y = 0; $Y < count($code_array1); $Y++ ) { | |
if ( substr($text, ($X-1), 1) == $code_array1[$Y] ) | |
$temp[$X] = $code_array2[$Y]; | |
} | |
} | |
for ( $X=1; $X<=strlen($text); $X+=2 ) { | |
if ( isset($temp[$X]) && isset($temp[($X + 1)]) ) { | |
$temp1 = explode( "-", $temp[$X] ); | |
$temp2 = explode( "-", $temp[($X + 1)] ); | |
for ( $Y = 0; $Y < count($temp1); $Y++ ) | |
$code_string .= $temp1[$Y] . $temp2[$Y]; | |
} | |
} | |
$code_string = "1111" . $code_string . "311"; | |
} elseif ( strtolower($code_type) == "codabar" ) { | |
$code_array1 = array("1","2","3","4","5","6","7","8","9","0","-","$",":","/",".","+","A","B","C","D"); | |
$code_array2 = array("1111221","1112112","2211111","1121121","2111121","1211112","1211211","1221111","2112111","1111122","1112211","1122111","2111212","2121112","2121211","1121212","1122121","1212112","1112122","1112221"); | |
// Convert to uppercase | |
$upper_text = strtoupper($text); | |
for ( $X = 1; $X<=strlen($upper_text); $X++ ) { | |
for ( $Y = 0; $Y<count($code_array1); $Y++ ) { | |
if ( substr($upper_text, ($X-1), 1) == $code_array1[$Y] ) | |
$code_string .= $code_array2[$Y] . "1"; | |
} | |
} | |
$code_string = "11221211" . $code_string . "1122121"; | |
} | |
// Pad the edges of the barcode | |
$code_length = 20; | |
if ($print) { | |
$text_height = 30; | |
} else { | |
$text_height = 0; | |
} | |
for ( $i=1; $i <= strlen($code_string); $i++ ){ | |
$code_length = $code_length + (integer)(substr($code_string,($i-1),1)); | |
} | |
if ( strtolower($orientation) == "horizontal" ) { | |
$img_width = $code_length*$SizeFactor; | |
$img_height = $size; | |
} else { | |
$img_width = $size; | |
$img_height = $code_length*$SizeFactor; | |
} | |
$image = imagecreate($img_width, $img_height + $text_height); | |
$black = imagecolorallocate ($image, 0, 0, 0); | |
$white = imagecolorallocate ($image, 255, 255, 255); | |
imagefill( $image, 0, 0, $white ); | |
if ( $print ) { | |
foreach($remove as $v){ | |
$text=str_replace($v,"",$text); | |
} | |
imagestring($image, 5, 31, $img_height, $text, $black ); | |
} | |
$location = 10; | |
for ( $position = 1 ; $position <= strlen($code_string); $position++ ) { | |
$cur_size = $location + ( substr($code_string, ($position-1), 1) ); | |
if ( strtolower($orientation) == "horizontal" ) | |
imagefilledrectangle( $image, $location*$SizeFactor, 0, $cur_size*$SizeFactor, $img_height, ($position % 2 == 0 ? $white : $black) ); | |
else | |
imagefilledrectangle( $image, 0, $location*$SizeFactor, $img_width, $cur_size*$SizeFactor, ($position % 2 == 0 ? $white : $black) ); | |
$location = $cur_size; | |
} | |
// Draw barcode to the screen or save in a file | |
if ( $filepath=="" ) { | |
header ('Content-type: image/png'); | |
imagepng($image); | |
imagedestroy($image); | |
} else { | |
imagepng($image,$filepath); | |
imagedestroy($image); | |
} | |
} | |
?> |
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