Returns string with all alphabetic characters converted to lowercase. Test strtolower online.
string strtolower ( string $string )
PHP Documentation by the PHP Documentation Group
(PHP 4, PHP 5, PHP 7, PHP 8)
strtolower — Make a string lowercase
en
$string
) : string
Returns string with all alphabetic characters
converted to lowercase.
Note that 'alphabetic' is determined by the current locale. This means that e.g. in the default "C" locale, characters such as umlaut-A (Ä) will not be converted.
string
The input string.
Returns the lowercased string.
Example #1 strtolower() example
<?php
$str = "Mary Had A Little Lamb and She LOVED It So";
$str = strtolower($str);
echo $str; // Prints mary had a little lamb and she loved it so
?>
Note: This function is binary-safe.
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