strtoupper function to convert Lowercase char to Upper case letters

strtoupper() to change all lower to uppercase characters

$my_str="Hello welcome to plus2net.com";
$my_str=strtoupper($my_str);
echo $my_str;

Above code output will be

HELLO WELCOME TO PLUS2NET.COM

Syntax

$val=strtoupper($input_sting);

We can use strtoupper() function in PHP to change all the alphabetic characters to uppercase. This simple function takes one string as input and changes the characters present inside to uppercase. Here is an example code.

DEMO

String Functions first letter of every word to capitalize by using ucwords Change all alphabetic chars to lowercase Checking all lower case or upper case chars in a string

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