Description
string
strtolower ( string str )
Returns string with all alphabetic
characters converted to lowercase.
Note that 'alphabetic' is determined by the current locale. This
means that in i.e. the default "C" locale, characters such as
umlaut-A (Ä) will not be converted.
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 ?>
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Note: This function is
binary-safe.
See also strtoupper(), ucfirst(),
ucwords() and mb_strtolower().