PHP Requires Chilkat v11.7.0+

Extract One Section of a PDF by its Heading

See more PDF Text Extraction Examples

Demonstrates "labelValue": "section", which returns everything from a heading up to the next heading of the same or higher level. With the "markdown" operation the section keeps its own sub-headings. Chilkat2 PHP

<?php

use Chilkat2\JsonObject;
use Chilkat2\Pdf;

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// The PDF used in this example is available at sectioned_doc.pdf

$pdf = new Pdf();
try {
    $pdf->LoadFile('qa_data/pdf/sectioned_doc.pdf');

    $json = new JsonObject();
    $jsonOut = new JsonObject();

    // The document has the sections Introduction, Opening Hours, Terms and Conditions (with the
    // sub-sections Admission, Safety and Liability) and Contact.  Get the Terms and Conditions:
    // everything after that heading up to the next heading of the same level (Contact).  The heading
    // itself is not part of the value; labelMatches[0].label has it.
    $json->UpdateString('label', 'Terms and Conditions');
    $json->UpdateString('labelValue', 'section');

    $pdf->ExtractText('markdown', $json, $jsonOut);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo $jsonOut->StringOf('markdown'), "\n";

// The same with the "text" operation gives the section as plain text.
try {
    $pdf->ExtractText('text', $json, $jsonOut);
} catch (\Chilkat2\Exception $e) {
    echo $e->getMessage(), "\n";
    exit;
}

echo "---- as text ----\n";
echo $jsonOut->StringOf('text'), "\n";

// Sample output:

// ### Admission
//
// Admission is free. Groups of more than ten should book in advance so that a volunteer can be assigned to them.
//
// ### Safety
//
// No more than eight people may be on the stair at one time. Children under twelve must be accompanied by an adult, and the lantern room is closed in high winds.
//
// ### Liability
//
// Visitors climb the tower at their own risk. The society carries public liability insurance but accepts no responsibility for personal property.
// ---- as text ----
// Admission
//
// Admission is free. Groups of more than ten should book in advance so that a volunteer can be assigned to them.
//
// Safety
//
// No more than eight people may be on the stair at one time. Children under twelve must be accompanied by an adult, and the lantern room is closed in high winds.
//
// Liability
//
// Visitors climb the tower at their own risk. The society carries public liability insurance but accepts no responsibility for personal property.