mb_ereg_replace

(PHP 4 >= 4.2.0, PHP 5, PHP 7, PHP 8)

mb_ereg_replace — Replace regular expression with multibyte support

Description

mb_ereg_replace(
    string $pattern,
    string $replacement,
    string $string,
    ?string $options = null
): string|false|null

Scans string for matches to pattern, then replaces the matched text with replacement

Parameters

pattern

The regular expression pattern.

Multibyte characters may be used in pattern.

replacement

The replacement text.

string

The string being checked.

options

The search option. See mb_regex_set_options() for explanation.

Return Values

The resultant string on success, or false on error. If string is not valid for the current encoding, null is returned.

Changelog

Version	Description
8.0.0	`options` is nullable now.
7.1.0	The function checks whether `string` is valid for the current encoding.
7.1.0	The `e` modifier has been deprecated.

Notes

Note:
The internal encoding or the character encoding specified by mb_regex_encoding() will be used as the character encoding for this function.

Warning

Never use the e modifier when working on untrusted input. No automatic escaping will happen (as known from preg_replace()). Not taking care of this will most likely create remote code execution vulnerabilities in your application.