fdf_set_javascript_action

(PHP 4 >= 4.0.2, PHP 5 < 5.3.0, PECL fdf SVN)

fdf_set_javascript_action — Sets an javascript action of a field

fdf_set_javascript_action(
    resource $fdf_document,
    string $fieldname,
    int $trigger,
    string $script
): bool

Sets a javascript action for the given field.

fdf_document: The FDF document handle, returned by fdf_create(), fdf_open() or fdf_open_string().
fieldname: Name of the FDF field, as a string.
trigger
script

成功时返回 true，或者在失败时返回 false。

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