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212 lines
7.9 KiB
PHP
212 lines
7.9 KiB
PHP
<?php
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/*
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pBarcode39 - class to create barcodes (39B)
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Version : 2.1.4
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Made by : Jean-Damien POGOLOTTI
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Last Update : 19/01/2014
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This file can be distributed under the license you can find at :
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http://www.pchart.net/license
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You can find the whole class documentation on the pChart web site.
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*/
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/* pData class definition */
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#[\AllowDynamicProperties]
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class pBarcode39
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{
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public $Codes;
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public $Reverse;
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public $Result;
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public $pChartObject;
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public $CRC;
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public $MOD43;
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/* Class creator */
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public function __construct($BasePath = "", $EnableMOD43 = false)
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{
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$this->MOD43 = $EnableMOD43;
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$this->Codes = "";
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$this->Reverse = "";
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$FileHandle = @fopen($BasePath."data/39.db", 'rb');
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if (!$FileHandle) {
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die("Cannot find barcode database (".$BasePath."data/39.db).");
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}
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while (!feof($FileHandle)) {
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$Buffer = fgets($FileHandle, 4096);
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$Buffer = str_replace(chr(10), "", $Buffer);
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$Buffer = str_replace(chr(13), "", $Buffer);
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$Values = preg_split("/;/", $Buffer);
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$this->Codes[$Values[0]] = $Values[1];
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}
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fclose($FileHandle);
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}
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/* Return the projected size of a barcode */
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public function getSize($TextString, $Format="")
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{
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$Angle = isset($Format["Angle"]) ? $Format["Angle"] : 0;
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$ShowLegend = isset($Format["ShowLegend"]) ? $Format["ShowLegend"] : false;
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$LegendOffset = isset($Format["LegendOffset"]) ? $Format["LegendOffset"] : 5;
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$DrawArea = isset($Format["DrawArea"]) ? $Format["DrawArea"] : false;
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$FontSize = isset($Format["FontSize"]) ? $Format["FontSize"] : 12;
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$Height = isset($Format["Height"]) ? $Format["Height"] : 30;
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$TextString = $this->encode39($TextString);
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$BarcodeLength = strlen((string) $this->Result);
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if ($DrawArea) {
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$WOffset = 20;
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} else {
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$WOffset = 0;
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}
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if ($ShowLegend) {
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$HOffset = $FontSize+$LegendOffset+$WOffset;
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} else {
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$HOffset = 0;
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}
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$X1 = cos($Angle * PI / 180) * ($WOffset+$BarcodeLength);
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$Y1 = sin($Angle * PI / 180) * ($WOffset+$BarcodeLength);
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$X2 = $X1 + cos(($Angle+90) * PI / 180) * ($HOffset+$Height);
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$Y2 = $Y1 + sin(($Angle+90) * PI / 180) * ($HOffset+$Height);
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$AreaWidth = max(abs($X1), abs($X2));
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$AreaHeight = max(abs($Y1), abs($Y2));
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return(array("Width"=>$AreaWidth,"Height"=>$AreaHeight));
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}
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/* Create the encoded string */
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public function encode39($Value)
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{
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$this->Result = "100101101101"."0";
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$TextString = "";
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for ($i=1;$i<=strlen((string) $Value);$i++) {
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$CharCode = ord($this->mid($Value, $i, 1));
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if ($CharCode >= 97 && $CharCode <= 122) {
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$CharCode = $CharCode - 32;
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}
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if (isset($this->Codes[chr($CharCode)])) {
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$this->Result = $this->Result.$this->Codes[chr($CharCode)]."0";
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$TextString = $TextString.chr($CharCode);
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}
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}
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if ($this->MOD43) {
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$Checksum = $this->checksum($TextString);
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$this->Result = $this->Result.$this->Codes[$Checksum]."0";
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}
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$this->Result = $this->Result."100101101101";
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$TextString = "*".$TextString."*";
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return($TextString);
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}
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/* Create the encoded string */
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public function draw($Object, $Value, $X, $Y, $Format="")
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{
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$this->pChartObject = $Object;
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$R = isset($Format["R"]) ? $Format["R"] : 0;
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$G = isset($Format["G"]) ? $Format["G"] : 0;
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$B = isset($Format["B"]) ? $Format["B"] : 0;
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$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
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$Height = isset($Format["Height"]) ? $Format["Height"] : 30;
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$Angle = isset($Format["Angle"]) ? $Format["Angle"] : 0;
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$ShowLegend = isset($Format["ShowLegend"]) ? $Format["ShowLegend"] : false;
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$LegendOffset = isset($Format["LegendOffset"]) ? $Format["LegendOffset"] : 5;
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$DrawArea = isset($Format["DrawArea"]) ? $Format["DrawArea"] : false;
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$AreaR = isset($Format["AreaR"]) ? $Format["AreaR"] : 255;
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$AreaG = isset($Format["AreaG"]) ? $Format["AreaG"] : 255;
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$AreaB = isset($Format["AreaB"]) ? $Format["AreaB"] : 255;
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$AreaBorderR = isset($Format["AreaBorderR"]) ? $Format["AreaBorderR"] : $AreaR;
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$AreaBorderG = isset($Format["AreaBorderG"]) ? $Format["AreaBorderG"] : $AreaG;
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$AreaBorderB = isset($Format["AreaBorderB"]) ? $Format["AreaBorderB"] : $AreaB;
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$TextString = $this->encode39($Value);
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if ($DrawArea) {
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$X1 = $X + cos(($Angle-135) * PI / 180) * 10;
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$Y1 = $Y + sin(($Angle-135) * PI / 180) * 10;
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$X2 = $X1 + cos($Angle * PI / 180) * (strlen((string) $this->Result)+20);
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$Y2 = $Y1 + sin($Angle * PI / 180) * (strlen((string) $this->Result)+20);
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if ($ShowLegend) {
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$X3 = $X2 + cos(($Angle+90) * PI / 180) * ($Height+$LegendOffset+$this->pChartObject->FontSize+10);
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$Y3 = $Y2 + sin(($Angle+90) * PI / 180) * ($Height+$LegendOffset+$this->pChartObject->FontSize+10);
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} else {
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$X3 = $X2 + cos(($Angle+90) * PI / 180) * ($Height+20);
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$Y3 = $Y2 + sin(($Angle+90) * PI / 180) * ($Height+20);
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}
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$X4 = $X3 + cos(($Angle+180) * PI / 180) * (strlen((string) $this->Result)+20);
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$Y4 = $Y3 + sin(($Angle+180) * PI / 180) * (strlen((string) $this->Result)+20);
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$Polygon = array($X1,$Y1,$X2,$Y2,$X3,$Y3,$X4,$Y4);
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$Settings = array("R"=>$AreaR,"G"=>$AreaG,"B"=>$AreaB,"BorderR"=>$AreaBorderR,"BorderG"=>$AreaBorderG,"BorderB"=>$AreaBorderB);
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$this->pChartObject->drawPolygon($Polygon, $Settings);
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}
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for ($i=1;$i<=strlen((string) $this->Result);$i++) {
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if ($this->mid($this->Result, $i, 1) == 1) {
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$X1 = $X + cos($Angle * PI / 180) * $i;
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$Y1 = $Y + sin($Angle * PI / 180) * $i;
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$X2 = $X1 + cos(($Angle+90) * PI / 180) * $Height;
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$Y2 = $Y1 + sin(($Angle+90) * PI / 180) * $Height;
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$Settings = array("R"=>$R,"G"=>$G,"B"=>$B,"Alpha"=>$Alpha);
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$this->pChartObject->drawLine($X1, $Y1, $X2, $Y2, $Settings);
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}
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}
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if ($ShowLegend) {
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$X1 = $X + cos($Angle * PI / 180) * (strlen((string) $this->Result)/2);
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$Y1 = $Y + sin($Angle * PI / 180) * (strlen((string) $this->Result)/2);
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$LegendX = $X1 + cos(($Angle+90) * PI / 180) * ($Height+$LegendOffset);
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$LegendY = $Y1 + sin(($Angle+90) * PI / 180) * ($Height+$LegendOffset);
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$Settings = array("R"=>$R,"G"=>$G,"B"=>$B,"Alpha"=>$Alpha,"Angle"=>-$Angle,"Align"=>TEXT_ALIGN_TOPMIDDLE);
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$this->pChartObject->drawText($LegendX, $LegendY, $TextString, $Settings);
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}
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}
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public function checksum($string)
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{
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$checksum = 0;
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$length = strlen((string) $string);
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$charset = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%';
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for ($i=0; $i < $length; ++$i) {
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$checksum += strpos($charset, (string) $string[$i]);
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}
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return substr($charset, ($checksum % 43), 1);
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}
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public function left($value, $NbChar)
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{
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return substr((string) $value, 0, $NbChar);
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}
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public function right($value, $NbChar)
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{
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return substr((string) $value, strlen((string) $value)-$NbChar, $NbChar);
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}
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public function mid($value, $Depart, $NbChar)
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{
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return substr((string) $value, $Depart-1, $NbChar);
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}
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}
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