How to use php strtolower function?

php The strtolower function is used to convert a string to lowercase. Its syntax is strtolower(string). The parameter string is required and refers to the string to be converted.

#php How to use strtolower function?

Definition and usage

strtolower() function converts a string to lowercase.

Note: This function is binary safe.

Related functions:

lcfirst() - Convert the first character in the string to lowercase

strtoupper() - Convert the string to Capitalize

ucfirst() - Convert the first character in the string to uppercase

ucwords() - Convert the first character of each word in the string to uppercase

Syntax:

strtolower(string)

Parameters:

string Required. Specifies the string to be converted.​

Return value: ​

Returns the string converted to lowercase.

PHP Version: 4

Example

Convert all characters to lowercase:

<?php
echo strtolower("Hello WORLD.");
?>

Output:

hello world.

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