mb_substitute_character

Function • Params and return types changed in PHP 8.0

Set/Get substitution character.

PHP 5

PHP 7

Improved

PHP 8.1

PHP 8.2-8.3

PHP 8.4

PHP 8.5

PHP 8.6

mb_substitute_character(string|int|null $substitute_character = null): string|int|bool

OptionalTypestring|int|nullDefault valuenull

Specify the Unicode value as an int, or as one of the following strings:

Typestring|int|bool

If $substitute_character is set, it returns true for success, otherwise returns false. If $substitute_character is not set, it returns the current setting.

Changes to the `mb_substitute_character` Function

Return type added: string|int|bool
Parameter name of parameter #1 changed: $substchar to $substitute_character
Parameter type added for parameter #1 ($substitute_character): string|int|null
Parameter default value added for position #1 ($substitute_character): null

- mb_substitute_character($substchar)
+ mb_substitute_character(string|int|null $substitute_character = null): string|int|bool