wp-includes/formatting.php:2491Converts invalid Unicode references range to valid range.
$contentstringstringfunction convert_invalid_entities( $content ) { $wp_htmltranswinuni = array( '€' => '€', // The Euro sign. '' => '', '‚' => '‚', // These are Windows CP1252 specific characters. 'ƒ' => 'ƒ', // They would look weird on non-Windows browsers. '„' => '„', '…' => '…', '†' => '†', '‡' => '‡', 'ˆ' => 'ˆ', '‰' => '‰', 'Š' => 'Š', '‹' => '‹', 'Œ' => 'Œ', '' => '', 'Ž' => 'Ž', '' => '', '' => '', '‘' => '‘', '’' => '’', '“' => '“', '”' => '”', '•' => '•', '–' => '–', '—' => '—', '˜' => '˜', '™' => '™', 'š' => 'š', '›' => '›', 'œ' => 'œ', '' => '', 'ž' => 'ž', 'Ÿ' => 'Ÿ', ); if ( str_contains( $content, '' ) ) { $content = strtr( $content, $wp_htmltranswinuni ); } return $content;}Introduced in 4.3.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/formatting.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.