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Automatic generation of HTML code for a table. OO interface

Automatic generation of HTML code for a table. OO interface
Can define colspan, rowspan, table style, cell style, and data style

<html> 
<head> 
<title>Table</title> 
     
<style type="text/css"> 
    .header { background: yellow; text-align: center; } 
</style> 
     
</head> 
<body> 


<? 
class html_table { 
    var $cols = 0; 
    var $rows = 0; 
    var $cell = array(); 
    var $html = ''; 
    var $cell_content = ' '; //default cell content. 
    var $content_style = ''; //default content style. content is surrounded by <SPAN> tag. 
     
    var $cell_style = ''; //default cell style 
0    var $table_style = ''; //default table style. 
                     
function cell_init() { 
    return array( 
        'content'=>$this->cell_content,            // data to be inserted between <TD> tags. 
        'style'=>$this->content_style,            // if this is defined and not empty then "content" (defined above) 
                                                             
                    // is encapsulated by a <SPAN STYLE='style'> tag. 
        'cell_style'=>$this->cell_style);        // if this is defined and not empty then the <TD> tag that encapsulates 
                                                             
                    // "content" has its "$cell_style" replaced by this variable. 
} 
     
function init($parameters) { 
    if (isset($parameters['cols'])) $this->cols = $parameters['cols']; 
    if (isset($parameters['rows']))$this->rows = $parameters['rows']; 
    for ($row = 1; $row <= $this->rows; $row++) { 
        for ($col = 1; $col <= $this->cols; $col++) { 
            $this->cell[$row][$col] = $this->cell_init(); 
        } 
    } 
} 

function add_rows($num_rows) { 
    for ($row = 1; $row <= $num_rows; $row++) { 
        for ($col = 1; $col <= $this->cols; $col++) { 
            $this->cell[$row + $this->rows][$col] = $this->cell_init(); 
        } 
    } 
    $this->rows += $num_rows; 
} 

function add_cols($num_cols) { 
    for ($row = 1; $row <= $this->rows; $row++) { 
        for ($col = 1; $col <= $num_cols; $col++) { 
            $this->cell[$row][$col+$this->cols] = $this->cell_init(); 
        } 
    } 
    $this->cols += $num_cols; 
} 

function code() { 
    if (!empty($this->html)) return 1; 
    $this->html = '<TABLE '.$this->table_style.'>'."\n"; 
    for ($row = 1; $row <= $this->rows; $row++) { 
        $this->html .= '<TR>'."\n"; 
        for ($col = 1; $col <= $this->cols; $col++) { 
            $extra = ''; 
            //check if "colspan" defined. if so then hide cells that get merged. 
            if (isset($this->cell[$row][$col]['colspan'])) { 
                $extra .= 'COLSPAN="'.$this->cell[$row][$col]['colspan'].'"'; 
                for ($hidden_col = 1; $hidden_col < $this->cell[$row][$col]['colspan']; $hidden_col++) { 
                    $this->cell[$row][$col+$hidden_col]["hide"] = true; 
                    //check if "rowspan" defined. if so then propogate "colspan" into merged rows. 
                    if (isset($this->cell[$row][$col]["rowspan"])) { 
                        for ($hidden_row = 1; $hidden_row < $this->cell[$row][$col]['rowspan']; $hidden_row++) { 
                            $this->cell[$row+$hidden_row][$col]["colspan"] = $this->cell[$row][$col]['colspan']; 
                        } 
                    }                     
                } 
            } 
            //check if "rowspan" defined. if so then hide cells that get merged. 
            if (isset($this->cell[$row][$col]["rowspan"])) { 
                $extra .= 'ROWSPAN="'.$this->cell[$row][$col]['rowspan'].'"'; 
                for ($hidden_row = 1; $hidden_row < $this->cell[$row][$col]['rowspan']; $hidden_row++) { 
                    $this->cell[$row+$hidden_row][$col]["hide"] = true; 
                } 
            } 
            // code to draw cell html... 
            if (isset($this->cell[$row][$col]['hide'])) continue; // if hide then skip this cell. 
             
            // otherwise draw cell with style... 
            if (!empty($this->cell[$row][$col]['cell_style'])) 
                $this->html .= '<TD '.$this->cell[$row][$col]['cell_style'].' '.$extra.'>'; 
            else 
                $this->html .= '<TD '.$this->cell_style.' '.$extra.'>'; 
                 
            // draw content of cell with style... 
            if (!empty($this->cell[$row][$col]['style'])) $this->html .= '<SPAN STYLE="'.$this->cell[$row][$col]['style'].'">'; 
            else if (!empty($this->content_style)) $this->html .= '<SPAN STYLE="'.$this->content_style.'">'; 
             
            $this->html .= $this->cell[$row][$col]['content']; 
             
            if (!empty($this->cell[$row][$col]['style']) or !empty($this->content_style)) $this->html .= '</SPAN>'; 
             
            $this->html .= '</TD>'."\n"; 
             
        } 
        $this->html .= '</TR>'."\n"; 
    } 
    $this->html .= '</TABLE>'."\n"; 
} 

function display() { 
    print $this->html; 
} 

} 

/* 
  example below... 
*/ 

$data = new html_table; 

// define table size. 
$data->init(array("cols"=>3, "rows"=>"3")); 

// default styles. 
$data->table_style = 'BORDER="1" CELLPADDING="2" CELLSPACING="2"'; 
$data->cell_style = 'WIDTH="100" ALIGN="center" BGCOLOR="white"'; 
$data->content_style = 'font: bold 9pt monospace;'; 

// define table content. 
$data->cell[1][1]["content"]="apple"; 
$data->cell[2][2]["content"]="orange"; 
$data->cell[2][3]["content"]="pear"; 
$data->cell[3][1]["content"]="plum"; 
$data->cell[2][1]["content"]="grape"; 
$data->cell[1][1]["colspan"]=3; 
$data->cell[2][3]["rowspan"]=2; 
$data->cell[3][1]["colspan"]=2; 

// define fancy styles for individual cells. 
$data->cell[2][2]["style"] ='font: 18pt monospace;'; 
$data->cell[2][3]["style"] ='background: red'; 
$data->cell[1][1]["style"] ='color: red; font: italic 18pt sans-serif;'; 
$data->cell[3][1]["style"] ='color: white; font: bold 18pt serif;'; 
$data->cell[1][1]["cell_style"] = 'CLASS="header"'; 
$data->cell[3][1]["cell_style"] = 'ALIGN="right" bgcolor="blue"'; 

// code and display. 
$data->code(); 
$data->display(); 
?> 
</body> 
</html>