PHP:从PDF提取fdf字段作为数组 [英] PHP: Extract fdf fields as an array from a PDF

问题描述

我想从可填充的pdf中提取可用字段作为数组.

i want to extract the available fields as an array from a fillable pdf.

一个数组，如:array('firstname','secondname','address');

如果这些字段已填写，我不需要这些值.

i do not need the values for those fields, if they are filled.

使用PHP最简单的方法是什么?

what is easiest way to do that using PHP?

推荐答案

在"fdf_next_field_name"的在线文档下，给出了以下示例，您可以对其进行修改以将字段名称存储到数组中

under online documentation for "fdf_next_field_name" the following example is given that you can modify to store the field names into an array

<?php
$fdf = fdf_open($HTTP_FDF_DATA);
for ($field = fdf_next_field_name($fdf); $field != ""; $field = fdf_next_field_name($fdf, $field)) {
    echo "field: $field\n";
}
?>

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