我正在写一个生成汉字工作表的脚本（让学生可以生成和练习写作）
该脚本从 index.php 中的表单传递一个 15 个字符的字符串。然后将该字符串分解为一个由 15 个元素组成的数组（每个元素是一个汉字）。当我想使用 Write() 函数用这些字符填充文件时，问题就出现了，我已经使用输入来选择适当的图像而没有任何问题，但现在是字体的编码让我很难过。
PS。我需要使用草书/手写字体，因为默认的“打印”字体不适合手写练习。理想情况下，我想使用HDZB_36.TTF或Sharp Regular Script Font
请参阅下面的代码以及我使用一些不同字体得到的错误图像。
<?php
header('Content-Type: text/html; charset=utf-8');
// linking TCPDF and FPDI libraries
require_once('tcpdf/tcpdf.php');
require_once('fpdi/fpdi.php');
// First retrieve a 15 chinese charcters long string from POST form in index.php
$hanzi = $_POST["hanzi"];
// Explode the hanzi into a 15 items array
function mb_str_split($hanzi){
return preg_split('/(?<!^)(?!$)/u', $hanzi);
}
$charlist = mb_str_split($hanzi);
// Define starting y positions of each line of the grid
$yPos1 = 10.71;
$yPos2 = 17.94;
// Creating new page with PDF as a background
$pdf = new FPDI();
$background = $pdf->setSourceFile('images/worksheet_template1.pdf');
$tplIdx = $pdf->importPage(1);
$pdf->AddPage();
$pdf->useTemplate($tplIdx, 0, 0, 210, 285, false);
/*
This is where the problem starts, I can manage to display latin characters using helvetica
but when I use any of the chinese fonts (usually encoded as GB2312 or BIG5) it fails.
With some larger (ex. stsong) fonts I get a browser error saying: No data received ERR_EMPTY_RESPONSE (Image 1)
With font 'htst3' the characters appeared upside down and were full of artifacts (Image 2).
With font HDZB_36 the characters were not rendered at all.
Other fonts will result in all of the chars displayed as '?' (Image 3)
*/
$fontname = TCPDF_FONTS::addTTFfont('ukai.ttf', 'TrueTypeUnicode', '', 64);
$pdf->SetFont('ukai','', 20);
for ($i = 0; $i <= 14; $i++){
// Generating path of the stroke order image (that works fine)
$sImgPath = "images/x-s.png";
$sImgPath = str_ireplace('x', $charlist[$i], $sImgPath);
// Stroke order image
$pdf->Image($sImgPath, '14', $yPos1, '','5');
// Here we will populate grid of the worksheet with chinese characters as TEXT
$pdf->SetXY(12.4,$yPos2);
$pdf->SetTextColor(0, 0, 0);
$pdf->Write(0, $charlist[$i], '', false);
$pdf->SetXY(24.2,$yPos2);
$pdf->SetTextColor(192,192,192);
$pdf->Write(0, $charlist[$i], '', false);
// Increase the y pos values so the next run of for() will draw in another line
$yPos1 = $yPos1+17.83;
$yPos2 = $yPos2+17.78;
}
ob_clean();
$pdf->Output('worksheet.pdf', 'I');
?>
