Skripty : MySQL výstup

Popis

Tento skript je variace na Tabulka se sloupcem na více stran. The difference is that when a query is executed initially the php loops through, gathers the string widths and then resizes the columns to try and fit everything onto the page. If a column never uses the maximum width alloted to it, the column is sized down and the saved space is re-assigned to the other columns. The aim of this was to be able to get out a good looking mysql report using as few a lines as possible, the disadvantage is that because the query has to loop through the results to work out the column sizes, it takes a bit of time. To counteract this, there is a dump option, that dumps out the php required to set up column widths, so one could check with a small report that the columns looked okay, then apply the dumped column widths to a larger report.

Zdrojový kód

<?php
require('fpdf.php');

class PDF extends FPDF {

var $tablewidths;
var $headerset;
var $footerset;

function _beginpage($orientation, $format) {
    $this->page++;
    if(!$this->pages[$this->page]) // solves the problem of overwriting a page if it already exists
        $this->pages[$this->page]='';
    $this->state=2;
    $this->x=$this->lMargin;
    $this->y=$this->tMargin;
    $this->FontFamily='';
    //Check page size
    if($orientation=='')
        $orientation=$this->DefOrientation;
    else
        $orientation=strtoupper($orientation[0]);
    if($format=='')
        $format=$this->DefPageFormat;
    else
    {
        if(is_string($format))
            $format=$this->_getpageformat($format);
    }
    if($orientation!=$this->CurOrientation || $format[0]!=$this->CurPageFormat[0] || $format[1]!=$this->CurPageFormat[1])
    {
        //New size
        if($orientation=='P')
        {
            $this->w=$format[0];
            $this->h=$format[1];
        }
        else
        {
            $this->w=$format[1];
            $this->h=$format[0];
        }
        $this->wPt=$this->w*$this->k;
        $this->hPt=$this->h*$this->k;
        $this->PageBreakTrigger=$this->h-$this->bMargin;
        $this->CurOrientation=$orientation;
        $this->CurPageFormat=$format;
    }
    if($orientation!=$this->DefOrientation || $format[0]!=$this->DefPageFormat[0] || $format[1]!=$this->DefPageFormat[1])
        $this->PageSizes[$this->page]=array($this->wPt, $this->hPt);
}

function Header()
{
    global $maxY;

    // Check if header for this page already exists
    if(!$this->headerset[$this->page]) {

        foreach($this->tablewidths as $width) {
            $fullwidth += $width;
        }
        $this->SetY(($this->tMargin) - ($this->FontSizePt/$this->k)*2);
        $this->cellFontSize = $this->FontSizePt ;
        $this->SetFont('Arial','',( ( $this->titleFontSize) ? $this->titleFontSize : $this->FontSizePt ));
        $this->Cell(0,$this->FontSizePt,$this->titleText,0,1,'C');
        $l = ($this->lMargin);
        $this->SetFont('Arial','',$this->cellFontSize);
        foreach($this->colTitles as $col => $txt) {
            $this->SetXY($l,($this->tMargin));
            $this->MultiCell($this->tablewidths[$col], $this->FontSizePt,$txt);
            $l += $this->tablewidths[$col] ;
            $maxY = ($maxY < $this->getY()) ? $this->getY() : $maxY ;
        }
        $this->SetXY($this->lMargin,$this->tMargin);
        $this->setFillColor(200,200,200);
        $l = ($this->lMargin);
        foreach($this->colTitles as $col => $txt) {
            $this->SetXY($l,$this->tMargin);
            $this->cell($this->tablewidths[$col],$maxY-($this->tMargin),'',1,0,'L',1);
            $this->SetXY($l,$this->tMargin);
            $this->MultiCell($this->tablewidths[$col],$this->FontSizePt,$txt,0,'C');
            $l += $this->tablewidths[$col];
        }
        $this->setFillColor(255,255,255);
        // set headerset
        $this->headerset[$this->page] = 1;
    }

    $this->SetY($maxY);
}

function Footer() {
    // Check if footer for this page already exists
    if(!$this->footerset[$this->page]) {
        $this->SetY(-15);
        //Page number
        $this->Cell(0,10,'Page '.$this->PageNo().'/{nb}',0,0,'C');
        // set footerset
        $this->footerset[$this->page] = 1;
    }
}

function morepagestable($lineheight=8) {
    // some things to set and 'remember'
    $l = $this->lMargin;
    $startheight = $h = $this->GetY();
    $startpage = $currpage = $this->page;

    // calculate the whole width
    foreach($this->tablewidths as $width) {
        $fullwidth += $width;
    }

    // Now let's start to write the table
    $row = 0;
    while($data=mysql_fetch_row($this->results)) {
        $this->page = $currpage;
        // write the horizontal borders
        $this->Line($l,$h,$fullwidth+$l,$h);
        // write the content and remember the height of the highest col
        foreach($data as $col => $txt) {

            $this->page = $currpage;
            $this->SetXY($l,$h);
            $this->MultiCell($this->tablewidths[$col],$lineheight,$txt,0,$this->colAlign[$col]);

            $l += $this->tablewidths[$col];

            if($tmpheight[$row.'-'.$this->page] < $this->GetY()) {
                $tmpheight[$row.'-'.$this->page] = $this->GetY();
            }
            if($this->page > $maxpage)
                $maxpage = $this->page;
            unset($data[$col]);
        }
        // get the height we were in the last used page
        $h = $tmpheight[$row.'-'.$maxpage];
        // set the "pointer" to the left margin
        $l = $this->lMargin;
        // set the $currpage to the last page
        $currpage = $maxpage;
        unset($data[$row]);
        $row++ ;
    }
    // draw the borders
    // we start adding a horizontal line on the last page
    $this->page = $maxpage;
    $this->Line($l,$h,$fullwidth+$l,$h);
    // now we start at the top of the document and walk down
    for($i = $startpage; $i <= $maxpage; $i++) {
        $this->page = $i;
        $l = $this->lMargin;
        $t = ($i == $startpage) ? $startheight : $this->tMargin;
        $lh = ($i == $maxpage) ? $h : $this->h-$this->bMargin;
        $this->Line($l,$t,$l,$lh);
        foreach($this->tablewidths as $width) {
            $l += $width;
            $this->Line($l,$t,$l,$lh);
        }
    }
    // set it to the last page, if not it'll cause some problems
    $this->page = $maxpage;
}

function connect($host='localhost',$username='',$password='',$db=''){
    $this->conn = mysql_connect($host,$username,$password) or die( mysql_error() );
    mysql_select_db($db,$this->conn) or die( mysql_error() );
    return true;
}

function query($query){
    $this->results = mysql_query($query,$this->conn);
    $this->numFields = mysql_num_fields($this->results);
}

function mysql_report($query,$dump=false,$attr=array()){

    foreach($attr as $key=>$val){
        $this->$key = $val ;
    }

    $this->query($query);

    // if column widths not set
    if(!isset($this->tablewidths)){

        // starting col width
        $this->sColWidth = (($this->w-$this->lMargin-$this->rMargin))/$this->numFields;

        // loop through results header and set initial col widths/ titles/ alignment
        // if a col title is less than the starting col width / reduce that column size
        for($i=0;$i<$this->numFields;$i++){
            $stringWidth = $this->getstringwidth(mysql_field_name($this->results,$i)) + 6 ;
            if( ($stringWidth) < $this->sColWidth){
                $colFits[$i] = $stringWidth ;
                // set any column titles less than the start width to the column title width
            }
            $this->colTitles[$i] = mysql_field_name($this->results,$i) ;
            switch (mysql_field_type($this->results,$i)){
                case 'int':
                    $this->colAlign[$i] = 'R';
                    break;
                default:
                    $this->colAlign[$i] = 'L';
            }
        }

        // loop through the data, any column whose contents is bigger that the col size is
        // resized
        while($row=mysql_fetch_row($this->results)){
            foreach($colFits as $key=>$val){
                $stringWidth = $this->getstringwidth($row[$key]) + 6 ;
                if( ($stringWidth) > $this->sColWidth ){
                    // any col where row is bigger than the start width is now discarded
                    unset($colFits[$key]);
                }else{
                    // if text is not bigger than the current column width setting enlarge the column
                    if( ($stringWidth) > $val ){
                        $colFits[$key] = ($stringWidth) ;
                    }
                }
            }
        }

        foreach($colFits as $key=>$val){
            // set fitted columns to smallest size
            $this->tablewidths[$key] = $val;
            // to work out how much (if any) space has been freed up
            $totAlreadyFitted += $val;
        }

        $surplus = (sizeof($colFits)*$this->sColWidth) - ($totAlreadyFitted);
        for($i=0;$i<$this->numFields;$i++){
            if(!in_array($i,array_keys($colFits))){
                $this->tablewidths[$i] = $this->sColWidth + ($surplus/(($this->numFields)-sizeof($colFits)));
            }
        }

        ksort($this->tablewidths);

        if($dump){
            Header('Content-type: text/plain');
            for($i=0;$i<$this->numFields;$i++){
                if(strlen(mysql_field_name($this->results,$i))>$flength){
                    $flength = strlen(mysql_field_name($this->results,$i));
                }
            }
            switch($this->k){
                case 72/25.4:
                    $unit = 'millimeters';
                    break;
                case 72/2.54:
                    $unit = 'centimeters';
                    break;
                case 72:
                    $unit = 'inches';
                    break;
                default:
                    $unit = 'points';
            }
            print "All measurements in $unit\n\n";
            for($i=0;$i<$this->numFields;$i++){
                printf("%-{$flength}s : %-10s : %10f\n",
                    mysql_field_name($this->results,$i),
                    mysql_field_type($this->results,$i),
                    $this->tablewidths[$i] );
            }
            print "\n\n";
            print "\$pdf->tablewidths=\n\tarray(\n\t\t";
            for($i=0;$i<$this->numFields;$i++){
                ($i<($this->numFields-1)) ?
                print $this->tablewidths[$i].", /* ".mysql_field_name($this->results,$i)." */\n\t\t":
                print $this->tablewidths[$i]." /* ".mysql_field_name($this->results,$i)." */\n\t\t";
            }
            print "\n\t);\n";
            exit;
        }

    } else { // end of if tablewidths not defined

        for($i=0;$i<$this->numFields;$i++){
            $this->colTitles[$i] = mysql_field_name($this->results,$i) ;
            switch (mysql_field_type($this->results,$i)){
                case 'int':
                    $this->colAlign[$i] = 'R';
                    break;
                default:
                    $this->colAlign[$i] = 'L';
            }
        }
    }

    mysql_data_seek($this->results,0);
    $this->AliasNbPages();
    $this->SetY($this->tMargin);
    $this->AddPage();
    $this->morepagestable($this->FontSizePt);
}

}

?>


Příklad

<?php
require('mysql_report.php');

$pdf = new PDF('L','pt','A3');

$pdf->SetFont('Arial','',11.5);
$pdf->connect('localhost','root','','db');

$attr = array('titleFontSize'=>18, 'titleText'=>'this would be the title');
$pdf->mysql_report("SELECT * FROM registered_users ORDER BY USER LIMIT 100",false,$attr);

$pdf->Output();
?>


Ukázka

fpdf-mysql-vystup.pdf

Download

fpdf-mysql-vystup.zip

Informace

Author: Philip Clarke
License: FPDF