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strtolower

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.

More information about strtolower on official PHP documentation site

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