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(PHP 4 >= 4.0.2, PHP 5, PHP 7)
fdf_set_javascript_action — Sets an javascript action of a field
$fdf_document
, string $fieldname
, int $trigger
, string $script
)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
。