Title: Requests_IRI::replace_invalid_with_pct_encoding
Published: August 16, 2016
Last modified: November 2, 2022

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# Requests_IRI::replace_invalid_with_pct_encoding( string $string, string $extra_chars, bool $iprivate = false ): string

## In this article

 * [Parameters](https://developer.wordpress.org/reference/classes/requests_iri/replace_invalid_with_pct_encoding/?output_format=md#parameters)
 * [Return](https://developer.wordpress.org/reference/classes/requests_iri/replace_invalid_with_pct_encoding/?output_format=md#return)
 * [Source](https://developer.wordpress.org/reference/classes/requests_iri/replace_invalid_with_pct_encoding/?output_format=md#source)

[ Back to top](https://developer.wordpress.org/reference/classes/requests_iri/replace_invalid_with_pct_encoding/?output_format=md#wp--skip-link--target)

Replace invalid character with percent encoding

## 󠀁[Parameters](https://developer.wordpress.org/reference/classes/requests_iri/replace_invalid_with_pct_encoding/?output_format=md#parameters)󠁿

 `$string`stringrequired

Input string

`$extra_chars`stringrequired

Valid characters not in iunreserved or iprivate (this is ASCII-only)

`$iprivate`booloptional

Allow iprivate

Default:`false`

## 󠀁[Return](https://developer.wordpress.org/reference/classes/requests_iri/replace_invalid_with_pct_encoding/?output_format=md#return)󠁿

 string

## 󠀁[Source](https://developer.wordpress.org/reference/classes/requests_iri/replace_invalid_with_pct_encoding/?output_format=md#source)󠁿

[View all references](https://developer.wordpress.org/reference/files/wp-includes/requests/iri.php/)
[View on Trac](https://core.trac.wordpress.org/browser/tags/7.0/src/wp-includes/Requests/IRI.php#L422)

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