PHP 生成中文驗證碼亂碼問題解決

PHP 生成中文驗證碼亂碼問題解決
將要處理的漢字,先由UTF8的漢字轉成html實體形式再使用.

示例代碼:

ini_set('JIS-mapped Japanese Font Support',false);
$pic=imagecreate(250,30);
$black=imagecolorallocate($pic,0,0,0);
$white=imagecolorallocate($pic,255,255,255);
$font="C://WINDOWS//Fonts//simhei.ttf";$str = '中華人民共和國';
$str = mb_convert_encoding($str, "html-entities","utf-8" );//結果:哪一队优 先开球

imagettftext($pic,10,0,10,20,$white,$font,$str);

header("Content-type: image/jpeg");
$filename='./photo.jpg';
$im=imagecreatefromjpeg($filename);
imagecopymerge($im,$pic,0,0,0,0,250,30,50);
imagejpeg($im);

pChart 示例代碼:

/*
Example14: A smooth flat pie graph
*/

Standard inclusions
header("content-type:text/html; charset=utf-8");
include_once("pChart/pData.class.php教程");
include_once("pChart/pChart.class.php");
Dataset definition
$DataSet = new pData;
$DataSet->AddPoint(array(10,2,3,5,3),"Serie1");
$DataSet->AddPoint(iconv_arr(array("Jan","二月","三月","Apr","May")),"Serie2");
$DataSet->AddAllSeries();
$DataSet->SetAbsciseLabelSerie("Serie2");

Initialise the graph
$Test = new pChart(300,200);
$Test->loadColorPalette("Sample/softtones.txt");
$Test->drawFilledRoundedRectangle(7,7,293,193,5,240,240,240);
$Test->drawRoundedRectangle(5,5,295,195,5,230,230,230);

Draw the pie chart
$Test->setFontProperties("Fonts/simkai.ttf",8);
$Test->drawBasicPieGraph($DataSet->GetData(),$DataSet->GetDataDescription(),120,100,70,PIE_PERCENTAGE ,255,255,218);
$Test->drawPieLegend(230,15,$DataSet->GetData(),$DataSet->GetDataDescription(),250,250,250);

$Test->Render("example14.png");

/**
* 將文本由UTF8編碼轉化為數位形式編碼(HTML實體)
* @param $arr 該參數可以為陣列或者string
* @author Steven lxq70361@qq.com
*/
function iconv_arr($arr){
if(is_array($arr)){
foreach($arr as $k=>$v){
$arr[$k] = iconv_arr($v);
}

}else{
$arr = mb_convert_encoding($arr, "html-entities","utf-8" );
}
return $arr;
}