w3resource

PHP: strtoupper() function

Description

The strtoupper() function is used to convert all alphabetic characters of a string to uppercase.

Version:

(PHP 4 and above)

Syntax:

strtoupper(string1)

Parameter:

Name Description Required /
Optional
Type
string1 The input string. Required String

Return value:

The uppercased string.

Value Type: String.

Pictorial Presentation

string_strtoupper

Example of php strtoupper() function

<?php
$string1="Welcome to w3resource.com";
echo strtoupper($string1); 
?>

Output:

WELCOME TO W3RESOURCE.COM

View the example in the browser

See also

PHP Function Reference

Previous: strtolower
Next: strtr



PHP: Tips of the Day

PHP: How to write to the console in PHP?

Firefox

On Firefox you can use an extension called FirePHP which enables the logging and dumping of information from your PHP applications to the console. This is an addon to the awesome web development extension Firebug.

  • http://www.studytrails.com/blog/using-firephp-in-firefox-to-debug-php/

Chrome

However if you are using Chrome there is a PHP debugging tool called Chrome Logger or webug (webug has problems with the order of logs).

More recently Clockwork is in active development which extends the Developer Tools by adding a new panel to provide useful debugging and profiling information. It provides out of the box support for Laravel 4 and Slim 2 and support can be added via its extensible API.

Using Xdebug

A better way to debug your PHP would be via Xdebug. Most browsers provide helper extensions to help you pass the required cookie/query string to initialize the debugging process.

  • Chrome - Xdebug Helper
  • Firefox - The easiest Xdebug
  • Opera - Xdebug
  • Safari - Xdebug Toggler

Ref : https://bit.ly/3ck9rFg