PHP Extension Requires Chilkat v11.7.0+

Get the Text Block Below a PDF Caption

See more PDF Text Extraction Examples

Demonstrates the "label" option with labelValue "below", which captures the block of text directly under a caption such as "Ship To", ending at the next gap or heading. Combined with layout "lines", the lines of an address block are kept separate. PHP Extension

<?php

include("chilkat.php");

$success = false;

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

//  The packing slip used in this example is available at packing_slip.pdf

$pdf = new CkPdf();
$success = $pdf->LoadFile('qa_data/pdf/packing_slip.pdf');
if ($success == false) {
    print $pdf->lastErrorText() . "\n";
    exit;
}

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

//  The packing slip has the captions "Bill To" and "Ship To" side by side,
//  each with an address block below it.
$json->UpdateString('label','Ship To');

//  "below" means the value is the block of text directly under the label.
$json->UpdateString('labelValue','below');

//  With the default "flow" layout the lines of the block would be joined into one paragraph.
//  "lines" keeps each line of the address on its own line.
$json->UpdateString('layout','lines');

$success = $pdf->ExtractText('text',$json,$jsonOut);
if ($success == false) {
    print $pdf->lastErrorText() . "\n";
    exit;
}

print 'Ship To:' . "\n";
print $jsonOut->stringOf('text') . "\n";
print '' . "\n";

$json->UpdateString('label','Bill To');
$success = $pdf->ExtractText('text',$json,$jsonOut);
if ($success == false) {
    print $pdf->lastErrorText() . "\n";
    exit;
}

print 'Bill To:' . "\n";
print $jsonOut->stringOf('text') . "\n";
print '' . "\n";

//  A caption over a short paragraph works the same way.  Here the flow layout is better,
//  because the two lines are one piece of text.
$json->UpdateString('label','Special Instructions');
$json->UpdateString('layout','flow');
$success = $pdf->ExtractText('text',$json,$jsonOut);
if ($success == false) {
    print $pdf->lastErrorText() . "\n";
    exit;
}

print 'Special Instructions:' . "\n";
print $jsonOut->stringOf('text') . "\n";

//  Sample output:

//  Ship To:
//  Frank Delgado
//  c/o Harbor Pet Boarding
//  9 Ferry Lane
//  Portside, WA 98001
//  
//  Bill To:
//  Frank Delgado
//  Apartment 3B
//  41 Mill Street
//  Portside, WA 98000
//  
//  Special Instructions:
//  Leave the carton with the boarding office if no one answers. Do not leave it outside; the cat tree is not packed for rain.

?>