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strtoupper to change lower to uppercase characters 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 he syntax.
$val=strtoupper($val);
Here is an example code.
$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
We can make only the first letter of every word to capitalize by using ucwords
You can read strtolower to change all letter to lower case
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