PHP | Hoja de cálculo_Excel_Writer | función setSubrayado()

La función setUnderline() es una función incorporada en PHP | Spreadsheet_Excel_Writer que se utiliza para establecer el subrayado del texto.

Sintaxis: 

void Format::setUnderline( $underline )

Parámetros: esta función acepta un único parámetro $subrayado . El valor posible de este parámetro es 1 para línea simple y 2 para línea doble.

Valor devuelto: esta función devuelve VERDADERO en caso de éxito y PEAR_ERROR en caso de error.

Ejemplo 1:  

<?php
require_once 'Spreadsheet/Excel/Writer.php';
 
// Add Workbook
$workbook = new Spreadsheet_Excel_Writer();
 
// Add Format to spreadsheet
$format_italic =& $workbook->addFormat();
 
// Set Underline
$format_italic->setUnderline(1);
 
// Add Worksheet to Spreadsheet
$worksheet =& $workbook->addWorksheet();
 
// Write to Worksheet
$worksheet->write(0, 0, "Details of GeeksforGeeks
                    Contributors", $format_italic);
$worksheet->write(1, 0, "Author", $format_italic);
$worksheet->write(1, 1, "User Handle", $format_italic);
$worksheet->write(2, 0, "Sarthak", $format_italic);
$worksheet->write(2, 1, "sarthak_ishu11", $format_italic);
 
// Send .xlsx file to header
$workbook->send('test.xls');
 
// Close Workbook Object
$workbook->close();
?>

Producción: 

Ejemplo 2:  

<?php
require_once 'Spreadsheet/Excel/Writer.php';
 
// Create Spreadsheet_Excel_Writer Object
$workbook = new Spreadsheet_Excel_Writer();
 
// Add Worksheet
$worksheet =& $workbook->addWorksheet();
 
// Set Font Family Times New Roman
$format_setUnderline =& $workbook->addFormat();
$format_setUnderline->setFontFamily('Times New Roman');
 
// Set Italic Property
$format_setUnderline->setItalic();
 
// Set Underline to text
$format_setUnderline->setUnderline(2);
 
// Write to Worksheet
$worksheet->write(0, 0, "Information");
$worksheet->write(1, 0, "Website Name", $format_setUnderline);
$worksheet->write(1, 1, "Address", $format_setUnderline);
$worksheet->write(2, 0, "GeeksforGeeks", $format_setUnderline);
$worksheet->write(2, 1, "https://www.geeksforgeeks.org/",
                                 $format_setUnderline);
$workbook->send('test.xls');
 
$workbook->close();
?>

Producción: 

Referencia: https://pear.php.net/manual/en/package.fileformats.spreadsheet-excel-writer.spreadsheet-excel-writer-format.setunderline.php