create formatted excel spreadsheet with MySQL data and PHP using tables - php

Question

I am working on exporting data from a MySQL database into an Excel spreadsheet. I have found code for doing this before and it works quite well. It does not format the spreadsheet. It was also the first PHP/MySQL site I created and the data didn't need to be pretty. The current project requires formatted data.
Yesterday, I found an article that may have allowed me to do what I need to do. Like an idiot, I didn't copy the link down. I can't find it today.
Here's my code -
<?php
require_once("includes/connection.php");
require_once("includes/functions.php");
// set $closed to 0 for development
$closed = 0;
//create a sting to allow the user to see if s/he is looking at open or closed items
if ($closed) {
$filename = FILENAME."_closed";
} else {
$filename = FILENAME."_open";
}
// $data will hold the result
$data = '<table>';
// is the row a header?
$th = FALSE;
// define the separator character
$sep = '\t';
// array for keys
$thKey = array();
// are we in the first row?
$firstRow = TRUE;
// create the query
$query = "SELECT ";
$query .= "training_requirements.Training, mechanism.mechName, location.locationName, impacted_employees.groupName, ";
$query .= "training_requirements.DateReceived, training_requirements.DateStart, training_requirements.DateDue, ";
$query .= "requester.lastName, requester.firstName, impact.impactName, training_requirements.TimeNeeded, ";
$query .= "priority.priority, training_requirements.Notes ";
$query .= "FROM ";
$query .= "training_requirements, impact, impacted_employees, location, mechanism, requester, priority ";
$query .= "WHERE impact.impactId = training_requirements.impactId ";
$query .= "AND impacted_employees.groupId = training_requirements.impEmpId ";
$query .= "AND location.locationId = training_requirements.trainLocId ";
$query .= "AND mechanism.mechId = training_requirements.mechId ";
$query .= "AND requester.requesterId = training_requirements.requesterId ";
$query .= "AND priority.id = training_requirements.Priority ";
$query .= "AND training_requirements.Closed = $closed ";
$query .= "AND training_requirements.Deleted = 0";
// run the query
$result = executeQuery($connection, $query);
// process the query
if (mysqli_num_rows($result) > 0) {
while ($resource = mysqli_fetch_assoc($result)) {
if (empty($thKey)) {
foreach($resource as $key => $value) {
$thKey[] = $key;
}
}
$data .= '<tr>';
for ($i = 0; $i < count($resource); $i++) {
if ($firstRow) {
// create the header
for ($j = 0; $j < count($resource); $j++) {
$data .= '<th>';
$data .= $thKey[$j];
$data .= '</th>';
}
$data .= '</tr><tr>';
$firstRow = FALSE;
}
$data .= '<td>';
if (isset($resource[$thKey[$i]])) {
$data .= $resource[$thKey[$i]];
} else {
$data .= ' ';
}
$data .= '</td>';
}
$data .= '</tr>';
}
$data .= '</table>';
echo $data;
}
//header('Content-type: application/excel');
//header("Content-Disposition: attachment; filename={$filename}.xls");
//header("Pragma: no-cache");
//header("Expires: 0");
?>
The code continues on to allow me to display the results in a browser. I get a proper looking table in Firefox. When I un-comment the header statements at the bottom, I get a blank Excel file. No cells, no nothing.
Using Excel 2007(12.0.6715.5000) SP3 MSO (12.0.6721.5000), PHP 5.4.24, and MySQL 5.5.40. Using plugins and libraries is not an option.
Vern

Answer 1

your code is just fech data from MySQL and not make any excel file .
here you are a great class for making execl file
with pure XML code without any extension
<?php
/********************************/
/* Code By Mr Korosh Raoufi */
/* WwW.k2-4u.CoM */
/********************************/
/**
* Simple excel generating from PHP5
*
* #package Utilities
* #license http://www.opensource.org/licenses/mit-license.php
* #author Oliver Schwarz <oliver.schwarz#gmail.com>
* #version 1.0
*/
/**
* Generating excel documents on-the-fly from PHP5
*
* Uses the excel XML-specification to generate a native
* XML document, readable/processable by excel.
*
* #package Utilities
* #subpackage Excel
* #author Oliver Schwarz <oliver.schwarz#vaicon.de>
* #version 1.1
*
* #todo Issue #4: Internet Explorer 7 does not work well with the given header
* #todo Add option to give out first line as header (bold text)
* #todo Add option to give out last line as footer (bold text)
* #todo Add option to write to file
*/
class Excel_XML
{
/**
* Header (of document)
* #var string
*/
private $header = "<?xml version=\"1.0\" encoding=\"%s\"?\>\n<Workbook xmlns=\"urn:schemas-microsoft-com:office:spreadsheet\" xmlns:x=\"urn:schemas-microsoft-com:office:excel\" xmlns:ss=\"urn:schemas-microsoft-com:office:spreadsheet\" xmlns:html=\"http://www.w3.org/TR/REC-html40\">";
/**
* Footer (of document)
* #var string
*/
private $footer = "</Workbook>";
/**
* Lines to output in the excel document
* #var array
*/
private $lines = array();
/**
* Used encoding
* #var string
*/
private $sEncoding;
/**
* Convert variable types
* #var boolean
*/
private $bConvertTypes;
/**
* Worksheet title
* #var string
*/
private $sWorksheetTitle;
/**
* Constructor
*
* The constructor allows the setting of some additional
* parameters so that the library may be configured to
* one's needs.
*
* On converting types:
* When set to true, the library tries to identify the type of
* the variable value and set the field specification for Excel
* accordingly. Be careful with article numbers or postcodes
* starting with a '0' (zero)!
*
* #param string $sEncoding Encoding to be used (defaults to UTF-8)
* #param boolean $bConvertTypes Convert variables to field specification
* #param string $sWorksheetTitle Title for the worksheet
*/
public function __construct($sEncoding = 'UTF-8', $bConvertTypes = false, $sWorksheetTitle = 'Table1')
{
$this->bConvertTypes = $bConvertTypes;
$this->setEncoding($sEncoding);
$this->setWorksheetTitle($sWorksheetTitle);
}
/**
* Set encoding
* #param string Encoding type to set
*/
public function setEncoding($sEncoding)
{
$this->sEncoding = $sEncoding;
}
/**
* Set worksheet title
*
* Strips out not allowed characters and trims the
* title to a maximum length of 31.
*
* #param string $title Title for worksheet
*/
public function setWorksheetTitle ($title)
{
$title = preg_replace ("/[\\\|:|\/|\?|\*|\[|\]]/", "", $title);
$title = substr ($title, 0, 31);
$this->sWorksheetTitle = $title;
}
/**
* Add row
*
* Adds a single row to the document. If set to true, self::bConvertTypes
* checks the type of variable and returns the specific field settings
* for the cell.
*
* #param array $array One-dimensional array with row content
*/
private function addRow ($array)
{
$cells = "";
foreach ($array as $k => $v):
$type = 'String';
if ($this->bConvertTypes === true && is_numeric($v)):
$type = 'Number';
endif;
$v = htmlentities($v, ENT_COMPAT, $this->sEncoding);
$cells .= "<Cell><Data ss:Type=\"$type\">" . $v . "</Data></Cell>\n";
endforeach;
$this->lines[] = "<Row>\n" . $cells . "</Row>\n";
}
/**
* Add an array to the document
* #param array 2-dimensional array
*/
public function addArray ($array)
{
foreach ($array as $k => $v)
$this->addRow ($v);
}
/**
* Generate the excel file
* #param string $filename Name of excel file to generate (...xls)
*/
public function generateXML ($filename = 'excel-export')
{
// correct/validate filename
$filename = preg_replace('/[^aA-zZ0-9\_\-]/', '', $filename);
// deliver header (as recommended in php manual)
header("Content-Type: application/vnd.ms-excel; charset=" . $this->sEncoding);
header("Content-Disposition: inline; filename=\"" . $filename . ".xls\"");
// print out document to the browser
// need to use stripslashes for the damn ">"
echo stripslashes (sprintf($this->header, $this->sEncoding));
echo "\n<Worksheet ss:Name=\"" . $this->sWorksheetTitle . "\">\n<Table>\n";
foreach ($this->lines as $line)
echo $line;
echo "</Table>\n</Worksheet>\n";
echo $this->footer;
}
}
?>
usage:
$xls = new Excel_XML('UTF-8', false, 'title text');
$data = array(
1 => array ('column1 text', 'coloumn2 text'),
1 => array ('column1 text', 'coloumn2 text'),
1 => array ('column1 text', 'coloumn2 text'),
);
$xls -> addArray($data);
$xls -> generateXML('file Name'); // its print code to browser use requred header to download