PHP 7.1 with plugin version 0.6.9.

The version of mPDF within ‘Send PDF for Contact Form 7’ version 0.6.9 is 6.1.0 dated 26/04/2016. Version 7.0.0 of mPDF is dated 19/10/2017 and it looks like mPDF is up to at least version 7.1.8.

In searching for resolution, found https://github.com/mpdf/mpdf/issues/889 stating “Upgrade to mPDF 7. mPDF 6 will not have PHP 7.2 support.”. Since PHP 7.2 and 7.3 are currently the only versions in ‘Active Support’, it seems the only course of action is to get the latest mPDF into ‘Send PDF for Contact Form 7’.

Thanks for your continued support of the plugin. If I can’t get up to at least PHP version 7.1, my hosting company will automatically start charging for PHP security support beginning February 1, 2019. I’m a volunteer supporting a web site for a non-profit, so we really don’t have the extra support money.

Thanks,
Tom

Florent,

I was able to successfully upgrade mpdf within version 0.6.9 of
plugin ‘Send PDF for Contact Form 7’.

Will you make an official version upgrade of ‘Send PDF for Contact Form 7’
that includes the latest mpdf? If so, I will be able to switch from
PHP 7.0.33 to PHP 7.1.25.

Thanks,
Tom

——————–

Look at all of #6 below to see the 5 lines of required coding changes to
utilize version 7.1.x of mpdf.

Otherwise, here are the high level steps I performed.

1) Create an Xampp test environment (in Windows 10)
2) Clone my production site with the Duplicator plugin
3) Test version 0.6.9 of plugin ‘Send PDF for Contact Form 7’ on PHP version 7.0.33
to confirm the environment is working.
version 4.9.1 of ‘Contact Form 7’
version 4.2.1 of ‘Contact Form 7 Signature Addon’
version 0.6.9 of ‘Send PDF for Contact Form 7’
version 6.1 of mpdf within ‘Send PDF for Contact Form 7’
version 7.0.33 of PHP
4) Install composer
References: https://www.thecodedeveloper.com/install-composer-windows-xampp/
https://www.hostinger.com/tutorials/how-to-install-composer
5) Upgrade mpdf within plugin ‘Send PDF for Contact Form 7’.
Version 7.1.9 of mpdf was installed.
Version 6.1 of mpdf was removed.
The before and after directory structures are as follows.
Before (with version 6.1 of mpdf):
C:.
├───classes
├───css
├───images
├───includes
├───js
│ └───lib
│ ├───addon
│ │ ├───hint
│ │ └───selection
│ └───theme
├───languages
├───mpdf
│ ├───classes
│ ├───collations
│ ├───font
│ ├───graph_cache
│ ├───iccprofiles
│ ├───includes
│ ├───patterns
│ ├───qrcode
│ │ └───data
│ ├───tests
│ │ └───data
│ │ └───pdfs
│ ├───tmp
│ ├───ttfontdata
│ ├───ttfonts
│ ├───utils
│ └───vendor
│ ├───composer
│ └───setasign
│ └───fpdi
│ └───filters
└───views

After (with version 7.1.9 of mpdf):
C:.
├───classes
├───css
├───images
├───includes
├───js
│ └───lib
│ ├───addon
│ │ ├───hint
│ │ └───selection
│ └───theme
├───languages
├───vendor
│ ├───composer
│ ├───mpdf
│ │ └───mpdf
│ │ ├───.github
│ │ ├───data
│ │ │ ├───collations
│ │ │ ├───font
│ │ │ ├───iccprofiles
│ │ │ └───patterns
│ │ ├───src
│ │ │ ├───Barcode
│ │ │ ├───Color
│ │ │ ├───Config
│ │ │ ├───Conversion
│ │ │ ├───Css
│ │ │ ├───Exception
│ │ │ ├───Fonts
│ │ │ ├───Gif
│ │ │ ├───Image
│ │ │ ├───Language
│ │ │ ├───Log
│ │ │ ├───Output
│ │ │ ├───Pdf
│ │ │ │ └───Protection
│ │ │ ├───QrCode
│ │ │ │ └───data
│ │ │ ├───Shaper
│ │ │ ├───Tag
│ │ │ ├───Utils
│ │ │ └───Writer
│ │ ├───tmp
│ │ │ └───ttfontdata
│ │ └───ttfonts
│ ├───myclabs
│ │ └───deep-copy
│ │ ├───doc
│ │ ├───fixtures
│ │ │ ├───f001
│ │ │ ├───f002
│ │ │ ├───f003
│ │ │ ├───f004
│ │ │ ├───f005
│ │ │ ├───f006
│ │ │ ├───f007
│ │ │ └───f008
│ │ └───src
│ │ └───DeepCopy
│ │ ├───Exception
│ │ ├───Filter
│ │ │ └───Doctrine
│ │ ├───Matcher
│ │ │ └───Doctrine
│ │ ├───Reflection
│ │ ├───TypeFilter
│ │ │ ├───Date
│ │ │ └───Spl
│ │ └───TypeMatcher
│ ├───paragonie
│ │ └───random_compat
│ │ ├───dist
│ │ ├───lib
│ │ └───other
│ ├───psr
│ │ └───log
│ │ └───Psr
│ │ └───Log
│ │ └───Test
│ └───setasign
│ └───fpdi
│ └───filters
└───views

6) Work through the ‘Send PDF for Contact Form 7’ required
changes based on https://packagist.org/packages/mpdf/mpdf
and the mpdf CHANGELOG.md.
A) Identify the plugin require_once commands for autoload.php
B) Identify the plugin object creation (new) statements involving mpdf.
C) Identify the plugin config parameters used during mpdf object creation.
6A)
findstr /S /N /I “autoload.php” *.php
classes\send-pdf.php:573: require WPCF7PDF_DIR . ‘/mpdf/vendor/autoload.php’;
views\send-pdf-admin.php:188: require WPCF7PDF_DIR . ‘/mpdf/vendor/autoload.php’;
So…
o modify classes\send-pdf.php:573: from ‘/mpdf/vendor/autoload.php’ to ‘/vendor/autoload.php’
o modify views\send-pdf-admin.pdf:188: from ‘/mpdf/vendor/autoload.php’ to ‘/vendor/autoload.php’
6B)
findstr /S /N /I /C:”new ” *.php | findstr “mpdf” | findstr /V /B “vendor”
classes\send-pdf.php:577: $mpdf=new mPDF(‘utf-8’, $formatPdf);
classes\send-pdf.php:579: $mpdf=new mPDF();
views\send-pdf-admin.php:189: $mpdf=new mPDF(‘utf-8’, $formatPdf);
So…
o modify classes\send-pdf.php:577: from $mpdf=new mPDF( to $mpdf=new \Mpdf\Mpdf(
o modify classes\send-pdf.php:579: from $mpdf=new mPDF( to $mpdf=new \Mpdf\Mpdf(
o modify views\send-pdf-admin.php:189: from $mpdf=new mPDF( to $mpdf=new \Mpdf\Mpdf(
6C)
o modify classes\send-pdf.php:577: $mpdf=new \Mpdf\Mpdf([ mode => ‘utf-8’, format => $formatPdf ]);
o modify views\send-pdf-admin.php:189: $mpdf=new \Mpdf\Mpdf([ mode => ‘utf-8’, format => $formatPdf ]);
7) Successfully test a Contact Form 7 with the following combination of software –
version 4.9.1 of ‘Contact Form 7’
version 4.2.1 of ‘Contact Form 7 Signature Addon’
version 0.6.9 of ‘Send PDF for Contact Form 7’
version 7.1.9 of mpdf within ‘Send PDF for Contact Form 7’
version 7.0.33 of PHP
NOTE: version 6.1 of mpdf created footers in my PDF files that
were positioned on the page too low to print.
version 7.1.9 of mpdf creates footers that print correctly.
8) Successfully test a Contact Form 7 with the following combination of software –
version 4.9.1 of ‘Contact Form 7’
version 4.2.1 of ‘Contact Form 7 Signature Addon’
version 0.6.9 of ‘Send PDF for Contact Form 7’
version 7.1.9 of mpdf within ‘Send PDF for Contact Form 7’
version 7.1.25 of PHP