strtoupper to change lower to uppercase characters & strtolower()

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


strtolower()

strtolower() function in PHP will convert all the upper case characters present inside a string to lower case. Inside the string only the alphabets will be changed and other characters will remain same.

$my_val=strtolower($my_val);

Here is an example code.

$my_str="Hello Please Visit PLUS2NET.COM";
$my_str=strtolower($my_str);
echo $my_str;

Here is the output

hello please visit plus2net.com



first letter of every word to capitalize by using ucwords

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