Translations::translate_plural( string $singular, string $plural, int $count, string $context = null ): string

Source

public function translate_plural( $singular, $plural, $count, $context = null ) {
	$entry              = new Translation_Entry(
		array(
			'singular' => $singular,
			'plural'   => $plural,
			'context'  => $context,
		)
	);
	$translated         = $this->translate_entry( $entry );
	$index              = $this->select_plural_form( $count );
	$total_plural_forms = $this->get_plural_forms_count();
	if ( $translated && 0 <= $index && $index < $total_plural_forms &&
		is_array( $translated->translations ) &&
		isset( $translated->translations[ $index ] ) ) {
		return $translated->translations[ $index ];
	} else {
		return 1 === (int) $count ? $singular : $plural;
	}
}

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