Home >>PHP String Functions >PHP strtoupper() Function

PHP strtoupper() Function

PHP strtoupper() Function

PHP strtoupper() function is used to convert a given input string into uppercase. It takes a input string as a parameter and converts all the lowercase english alphabets present in the input string to uppercase. All the other numeric characters or special characters present in the string remains as it is. It is binary-safe.

Syntax:

  strtoupper( $string );

Parameter Values

Parameter Description
string This is a required parameter. This parameter defines the string to convert.

Here is an example of strtoupper() function in PHP:

<html>
<body>

<?php
echo strtoupper("phptpoint");
?>
   
</body>
</html>
Output:
PHPTPOINT

Here is an another example of strtoupper() function in PHP:

<html>
<body>

<?php
$str = "Hello Everyone.. I am 21 Years Old!!";

echo strtoupper($str); // Numeric & special chars remains same
?>
   
</body>
</html>
Output:
HELLO EVERYONE.. I AM 21 YEARS OLD!!

PHP String Functions PHP addcslashes() Function PHP addslashes() Function PHP bin2hex() Function PHP chop() Function PHP chr() Function PHP chunk_split() Function PHP convert_cyr_string() Function PHP convert_uudecode() Function PHP convert_uuencode() Function PHP count_chars() Function PHP crc32() Function PHP crypt() Function PHP echo() Function PHP empty() function PHP explode() Function PHP strcmp() Function PHP fprintf() Function PHP strcoll() Function PHP get_html_translation_table() Function PHP strcspn() Function PHP hebrev() Function PHP strip_tags() Function PHP hebrevc() Function PHP hex2bin() Function PHP html_entity_decode() Function PHP htmlentities() Function PHP htmlspecialchars() Function PHP htmlspecialchars_decode() Function PHP implode() Function PHP join() Function PHP lcfirst() Function PHP levenshtein() Function PHP localeconv() Function PHP ltrim() Function PHP md5() Function PHP md5_file() Function PHP metaphone() Function PHP money_format() Function PHP nl_langinfo() Function PHP nl2br() Function PHP number_format() Function PHP ord() Function PHP parse_str() Function PHP print() Function PHP printf() Function PHP quoted_printable_decode() Function PHP quoted_printable_encode() Function PHP quotemeta() Function PHP rtrim() Function PHP setlocale() Function PHP sha1() Function PHP sha1_file() Function PHP similar_text() Function PHP soundex() Function PHP sprintf() Function PHP sscanf() Function PHP str_getcsv() Function PHP str_ireplace() Function PHP str_pad() Function PHP str_repeat() Function PHP str_replace() Function PHP str_rot13() Function PHP str_shuffle() Function PHP str_split() Function PHP str_word_count() Function PHP strcasecmp() Function PHP strchr() Function
No Sidebar ads