wpcf7_acceptable_filetypes()CF7 1.0

Returns a formatted list of acceptable filetypes.

Хуков нет.

Возвращает

Строку. Formatted list of acceptable filetypes.

Использование

wpcf7_acceptable_filetypes( $types, $format );
$types(строка|массив)
Array of filetypes.
По умолчанию: 'default'
$format(строка)
Pre-defined format designator.
По умолчанию: 'regex'

Код wpcf7_acceptable_filetypes() CF7 5.6.4

function wpcf7_acceptable_filetypes( $types = 'default', $format = 'regex' ) {
	if ( 'default' === $types or empty( $types ) ) {
		$types = array(
			'audio/*',
			'video/*',
			'image/*',
		);
	} else {
		$types = array_map(
			function ( $type ) {
				if ( is_string( $type ) ) {
					return preg_split( '/[\s|,]+/', strtolower( $type ) );
				}
			},
			(array) $types
		);

		$types = wpcf7_array_flatten( $types );
		$types = array_filter( array_unique( $types ) );
	}

	if ( 'attr' === $format or 'attribute' === $format ) {
		$types = array_map(
			function ( $type ) {
				if ( false === strpos( $type, '/' ) ) {
					return sprintf( '.%s', trim( $type, '.' ) );
				} elseif ( preg_match( '%^([a-z]+)/[*]$%i', $type, $matches ) ) {
					if ( in_array( $matches[1], array( 'audio', 'video', 'image' ) ) ) {
						return $type;
					} else {
						return '';
					}
				} elseif ( wpcf7_convert_mime_to_ext( $type ) ) {
					return $type;
				}
			},
			$types
		);

		$types = array_filter( $types );

		return implode( ',', $types );

	} elseif ( 'regex' === $format ) {
		$types = array_map(
			function ( $type ) {
				if ( false === strpos( $type, '/' ) ) {
					return preg_quote( trim( $type, '.' ) );
				} elseif ( $type = wpcf7_convert_mime_to_ext( $type ) ) {
					return $type;
				}
			},
			$types
		);

		$types = wpcf7_array_flatten( $types );
		$types = array_filter( array_unique( $types ) );

		return implode( '|', $types );
	}

	return '';
}