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Simple Excel Writer in PHP
<?php
/**
* Simple excel writer class with no external dependencies, drop it in and have fun
* @author Matt Nowack
* @license Unlicensed
* @version 1.0
*/
class Excel {
private $col;
private $row;
private $data;
private $title;
/**
* Safely encode a string for use as a filename
* @param string $title The title to use for the file
* @return string The file safe title
*/
static function filename($title) {
$result = strtolower(trim($title));
$result = str_replace("'", '', $result);
$result = preg_replace('#[^a-z0-9_]+#', '-', $result);
$result = preg_replace('#\-{2,}#', '-', $result);
return preg_replace('#(^\-+|\-+$)#D', '', $result);
}
/**
* Builds a new Excel Spreadsheet object
* @return Excel The Spreadsheet
*/
function __construct($title) {
$this->title = $title;
$this->col = 0;
$this->row = 0;
$this->data = '';
$this->bofMarker();
}
/**
* Transmits the proper headers to cause a download to occur and to identify the file properly
* @return nothing
*/
function headers() {
header("Content-Type: application/force-download");
header("Content-Type: application/octet-stream");
header("Content-Type: application/download");
header("Content-Disposition: attachment;filename=" . Excel::filename($this->title) . ".xls ");
header("Content-Transfer-Encoding: binary ");
}
function send() {
$this->eofMarker();
$this->headers();
echo $this->data;
}
/**
* Writes the Excel Beginning of File marker
* @see pack()
* @return nothing
*/
private function bofMarker() {
$this->data .= pack("ssssss", 0x809, 0x8, 0x0, 0x10, 0x0, 0x0);
}
/**
* Writes the Excel End of File marker
* @see pack()
* @return nothing
*/
private function eofMarker() {
$this->data .= pack("ss", 0x0A, 0x00);
}
/**
* Moves internal cursor left by the amount specified
* @param optional integer $amount The amount to move left by, defaults to 1
* @return integer The current column after the move
*/
function left($amount = 1) {
$this->col -= $amount;
if($this->col < 0) {
$this->col = 0;
}
return $this->col;
}
/**
* Moves internal cursor right by the amount specified
* @param optional integer $amount The amount to move right by, defaults to 1
* @return integer The current column after the move
*/
function right($amount = 1) {
$this->col += $amount;
return $this->col;
}
/**
* Moves internal cursor up by amount
* @param optional integer $amount The amount to move up by, defaults to 1
* @return integer The current row after the move
*/
function up($amount = 1) {
$this->row -= $amount;
if($this->row < 0) {
$this->row = 0;
}
return $this->row;
}
/**
* Moves internal cursor down by amount
* @param optional integer $amount The amount to move down by, defaults to 1
* @return integer The current row after the move
*/
function down($amount = 1) {
$this->row += $amount;
return $this->row;
}
/**
* Moves internal cursor to the top of the page, row = 0
* @return nothing
*/
function top() {
$this->row = 0;
}
/**
* Moves internal cursor all the way left, col = 0
* @return nothing
*/
function home() {
$this->col = 0;
}
/**
* Writes a number to the Excel Spreadsheet
* @see pack()
* @param integer $value The value to write out
* @return nothing
*/
function number($value) {
$this->data .= pack("sssss", 0x203, 14, $this->row, $this->col, 0x0);
$this->data .= pack("d", $value);
}
/**
* Writes a string (or label) to the Excel Spreadsheet
* @see pack()
* @param string $value The value to write out
* @return nothing
*/
function label($value) {
$length = strlen($value);
$this->data .= pack("ssssss", 0x204, 8 + $length, $this->row, $this->col, 0x0, $length);
$this->data .= $value;
}
}
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