strtolower
(PHP 4, PHP 5, PHP 7, PHP 8)
strtolower — Make a string lowercase
Description
strtolower(string
$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.
Parameters
-
string -
The input string.
Return Values
Returns the lowercased string.
Examples
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
?>
Notes
Note: This function is binary-safe.
See Also
- strtoupper() - Make a string uppercase
- ucfirst() - Make a string's first character uppercase
- ucwords() - Uppercase the first character of each word in a string
- mb_strtolower() - Make a string lowercase
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