dompdf изображение не настоящее изображение не читаемое или пустое

У меня проблемы с dompdf, изображения, которые я вставляю, не читаются при преобразовании в файл pdf

когда я загружаю его в dompdf используя

метод php

<img src="<?php echo $_POST["sig"]; ?>" /> 

я получаю миниатюру коробки с X на ней

и он говорит, что «изображение не настоящее изображение не читается или пусто» с адресом моего изображения, напечатанным в тексте

но когда я использую весь URL

 <img src="data:image/png;base64,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" /> 

это проявляется просто отлично.

что может быть решением для этого?

Related of "dompdf изображение не настоящее изображение не читаемое или пустое"

У меня была такая же проблема, изображения для меня не отображались – фоновые изображения и встроенные. Мне пришлось установить DOMPDF_ENABLE_REMOTE в true в вашей конфигурации dompdf_config.inc.php

Просто обратите внимание на риск безопасности, если вы включили его вместе с DOMPDF_ENABLE_PHP

Вы загружаете этот код непосредственно в dompdf:

 $html = '<img src="<?php echo $_POST["sig"]; ?>" />'; $dompdf->load_html($html); 

или

 $dompdf->load_html_file(foo.php); 

Или вы загружаете обработанный PHP-документ:

 $html = '<img src="' . $_POST["sig"]; . '" />'; $dompdf->load_html($html); 

или

 $dompdf->load_html_file('http://example.com/foo.php'); 

Если содержимое PHP не обрабатывается до загрузки его в dompdf, оно не будет обрабатываться вообще. По умолчанию (с 0.6.0) не обрабатывает PHP-код в документе HTML. Вам нужно будет установить DOMPDF_ENABLE_PHP в значение true.

У меня была такая же проблема.

Исправьте его, установив файл dompdf_config.inc.php :

def ('DEBUGKEEPTEMP', true);

Надеюсь это поможет.

Установка DEBUGKEEPTEMP в true работала, но если вы параноик и опасаетесь влияния этого включения, вы также можете добавить self :: $ _ cache = array (); до конца класса Image_Cache's clear ();