function AbstractString::upper

2 methods override AbstractString::upper()

AbstractUnicodeString::upper in vendor/symfony/string/AbstractUnicodeString.php

ByteString::upper in vendor/symfony/string/ByteString.php

File

vendor/symfony/string/AbstractString.php, line 651

Class

AbstractString

Represents a string of abstract characters.

Namespace

Symfony\Component\String

Code

public abstract function upper() : static;