FPDF - Создание нескольких PDF-файлов в одном создании

Question

Я пытаюсь сгенерировать несколько (в кластере) PDF-отчетов, используя fpdf за один клик в форме php.

Центр test_center представляет собой группу отдельных отчетов. Когда нажата кнопка отправки, она вызовет файл php файла fpdf. И мои коды пока не работают.

До сих пор в моем PHP:

<?php 
$program="select distinct test_center from sa_sase_result where school_year = '$content' "; 
$prog=mysql_query($program); 
while($row = mysql_fetch_array($prog)) 
{ 
    echo '<option>' .$row['test_center'] . '</option>';  
} 

$message = null; 

if($_SERVER["REQUEST_METHOD"] == "POST") { 
    if(!isset($_POST['depchair'])) { 

    } else if($_POST['depchair']=="") { 

    } else {    
     $input_depchair = addslashes($_POST['depchair']);      

     $input_depchair = addslashes($_POST['depchair']); 
     $pro_email="select control_no from sa_student_infoe y where y.test_center = '$input_depchair'"; 
     $pro_address=mysql_query($pro_email); 

     $address = mysql_result($pro_address, 0); 
    }     
} 
?> 

EDIT: Вот файл generate_pdf.php.

<?php 

require('fpdf/fpdf.php'); 


mysql_connect("localhost", "root", "1234") or die(mysql_error()); 
mysql_select_db("final") or die(mysql_error()); 

$query = "SELECT * FROM sa_student_infoe, sa_student_edubg, sa_sase_result, sa_accounts"; 
     $result = mysql_query($query) or die(mysql_error()); 
     while($row = mysql_fetch_array($result, MYSQL_BOTH)){ 
     $control_no[] = $row['control_no']; 
     $surname[] = $row['surname']; 
     $fname[] = $row['fname']; 
     $mname[] = $row['mname']; 
     $app_no[] = $row['activation_code']; 
     $schoolyear[] = $row['schoolyear']; 
     $schl[] = $row['high_school']; 
     $schl_ad[] = $row['address_school']; 
     $apt[] = $row['aptitude']; 
     $mth[] = $row['math']; 
     $lng[] = $row['language']; 
     $sci[] = $row['science']; 
     $totgrd[] = $row['total_grade']; 
     $sx[] = $row['sex']; 

     } 

$ctrl_no = array_shift($control_no); 
$sname = array_shift($surname); 
$firstname = array_shift($fname); 
$midname = array_shift($mname); 
$appno = array_shift($app_no); 
$schyear = array_shift($schoolyear); 
$school = array_shift($schl); 
$school_ad = array_shift($schl_ad); 
$aptitude = array_shift($apt); 
$math = array_shift($mth); 
$lang = array_shift($lng); 
$science = array_shift($sci); 
$gr = array_shift($totgrd); 
$sex = array_shift($sx); 


$pdf = new FPDF(); 
$pdf->AddPage(); 
$pdf->SetFont('Arial','', 12); 


$pdf->Cell(0, 0,'Mindanao State University', 0, 1, 'C'); 
$pdf->Cell(0, 10,'System Admission and Scholarship Examination (SASE)', 0, 1, 'C'); 
$pdf->Cell(0, 20,'REPORT OF RATING', 0, 1, 'C'); 


$pdf->Cell(30,5,'Control No:'); 
$pdf->Cell(100,5,$ctrl_no); 
$pdf->Cell(30,5,'School Year:'); 
$pdf->Cell(-160,5,$schyear); 
$pdf->Cell(30,15,'Activation Code:'); 
$pdf->Cell(10,15,' ' . $appno); 


$pdf->Cell(50,40,$sname); 
$pdf->Cell(50,40,$firstname); 
$pdf->Cell(-120,40,$midname); 
$pdf->Cell(15,50,'____________________________________________________________________'); 
$pdf->Cell(50,60,'LASTNAME'); 
$pdf->Cell(50,60,'FIRSTNAME'); 
$pdf->Cell(-50,60,'MIDDLENAME'); 

$pdf->Cell(-65,90,$school); 
$pdf->Cell(67,100,'____________________________________________________________________'); 
$pdf->Cell(-15,110,'SCHOOL'); 

$pdf->Cell(-52,140,$school_ad); 
$pdf->Cell(57,150,'____________________________________________________________________'); 
$pdf->Cell(-25,160,'SCHOOL ADDRESS'); 

$pdf->Cell(.1,190,'--------------------------------------------------------------------'); 
$pdf->Cell(-35,200,'--------------------------------------------------------------------'); 

$pdf->Cell(17,230,'AP(30):'); 
$pdf->Cell(18,230,$aptitude); 
$pdf->Cell(17,230,'LU(80):'); 
$pdf->Cell(18,230,$lang); 
$pdf->Cell(17,230,'MA(40):'); 
$pdf->Cell(18,230,$math); 
$pdf->Cell(17,230,'SC(30):'); 
$pdf->Cell(18,230,$science); 
$pdf->Cell(18,230,'GR(180):'); 
$pdf->Cell(-300,230,$gr); 


$pdf->Cell(-10,260,'SEX:'); 


$pdf->Output("pdf_reports/SASE_report_rating/".$ctrl_no.".pdf", "F"); 


?> 

Answer 1

ЯШ:

$("#id_of_generate_it_button").click(function() { 
    var N = 10;// ten pdf files will be generated and stored to the disk 
    for (i = 0; i < N; i++) {// 'the loop' -- walk thru all parallel generation processes connected to the event 
     parameter = N;// just to definite each single generated file 
     $.get("generate.php?q=parameter", function (data) {// start the ajax process to generate single document 
                  // ?q=parameter i wrote just for passing to the php file some dependent parameter for each single file 
      // pdf #i generated 
     }); 
    }// end for parallel generating N pdf files to the disk 
});//end click 

в generate.php:

$query = "SELECT * FROM sa_student_infoe, sa_student_edubg, sa_sase_result, sa_accounts WHERE some_field = ' . $_REQUEST['q'] . '";// single record from all