action for a field.
resource fdfdoc: FDF
string fieldname: Field
int whichtrigger: Trigger
TRUE on success; FALSE on error
whichtrigger can be one of:
Moving the mouse into the field
Moving the mouse out of the field
Pressng the mouse button down
Releasing the mouse button
Change the way the data appears
Verify the entered value was correct
Pressing a key or entering some data
Triggers a calculation script attached to the
Existing since versions 4.0.2
Example 287. Assign
// create the FDF
$outfdf = fdf_create();
// set a field value
fdf_set_value($outfdf, "volume", $volume, 0);
// set the field action
// if a check box is unchecked, a radio button has one value
// if checked it is updated to a new value
"var valMe = event.target.value;\r"
"var fRadio = this.getField(\"radio\");\r\r"
"if (valMe == \"Off\")\r"
"\tfRadio.value = \"left\"\r"
"\tfRadio.value = \"right\";\r");
// save file and output result to client
$fp = fopen("outtest.fdf", "r");
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing
(Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch).
This material may be distributed only subject to the terms and conditions set forth
in the Open Publication License, v1.0 or later (the latest version is presently available at
The authors of this book have elected not to choose any options under the OPL. This online book was obtained
and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4
for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All
persons and entities shall have neither liability nor responsibility to any person or entity with respect to
any loss or damage arising from the information contained in this book.