strtolower
PHP 4, PHP 5, PHP 7, PHP 8
strtolower - Make a string lowercase
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.
Notes
Note:
This function is binary-safe.