Sanitizes an attributes array into an attributes string to be placed inside a tag.

Automatically injects type attribute if needed.
Used by wp_get_script_tag() and wp_get_inline_script_tag() .

$attributes array Required

Key-value pairs representing <script> tag attributes.

string String made of sanitized <script> tag attributes.

File: wp-includes/script-loader.php. View all references

function wp_sanitize_script_attributes( $attributes ) {
	$html5_script_support = ! is_admin() && ! current_theme_supports( 'html5', 'script' );
	$attributes_string    = '';

	// If HTML5 script tag is supported, only the attribute name is added
	// to $attributes_string for entries with a boolean value, and that are true.
	foreach ( $attributes as $attribute_name => $attribute_value ) {
		if ( is_bool( $attribute_value ) ) {
			if ( $attribute_value ) {
				$attributes_string .= $html5_script_support ? sprintf( ' %1$s="%2$s"', esc_attr( $attribute_name ), esc_attr( $attribute_name ) ) : ' ' . esc_attr( $attribute_name );
			}
		} else {
			$attributes_string .= sprintf( ' %1$s="%2$s"', esc_attr( $attribute_name ), esc_attr( $attribute_value ) );
		}
	}

	return $attributes_string;
}