Как отобразить изображение в формате JSON / base64 в FPDF?

Я Coldfusion/MySQL 5.0.88 подписи (используя подпись в моей базе Coldfusion/MySQL 5.0.88 и хотел бы Coldfusion/MySQL 5.0.88 подпись, которую я беру на pdf, который я генерирую с помощью fpdf . Однако я не могу заставить его работать. ,

Подписи хранятся следующим образом:

 [{"lx":19,"ly":58,"mx":19,"my":57},{"lx":23,"ly":54,"mx":19,"my":58},{"lx":26,"ly":53,"mx":23,"my":54},{"lx":32,"ly":51,"mx":26,"my":53},{"lx":38,"ly":47,"mx":32,"my":51},{"lx":44,"ly":44,"mx":38,"my":47},{"lx":51,"ly":41,"mx":44,"my":44},{"lx":58,"ly":37,"mx":51,"my":41},{"lx":64,"ly":35,"mx":58,"my":37},{"lx":67,"ly":31,"mx":64,"my":35},{"lx":70,"ly":30,"mx":67,"my":31},{"lx":72,"ly":28,"mx":70,"my":30},{"lx":71,"ly":28,"mx":72,"my":28},{"lx":69,"ly":28,"mx":71,"my":28},{"lx":66,"ly":28,"mx":69,"my":28},{"lx":62,"ly":29,"mx":66,"my":28},{"lx":59,"ly":31,"mx":62,"my":29},{"lx":55,"ly":32,"mx":59,"my":31},{"lx":52,"ly":33,"mx":55,"my":32},{"lx":48,"ly":35,"mx":52,"my":33},{"lx":44,"ly":37,"mx":48,"my":35},{"lx":41,"ly":38,"mx":44,"my":37},{"lx":39,"ly":40,"mx":41,"my":38},{"lx":36,"ly":40,"mx":39,"my":40},{"lx":33,"ly":42,"mx":36,"my":40},{"lx":32,"ly":43,"mx":33,"my":42},{"lx":31,"ly":44,"mx":32,"my":43},{"lx":31,"ly":46,"mx":31,"my":44},{"lx":32,"ly":48,"mx":31,"my":46},{"lx":136,"ly":23,"mx":32,"my":48},{"lx":132,"ly":24,"mx":136,"my":23},{"lx":104,"ly":38,"mx":132,"my":24},{"lx":103,"ly":40,"mx":104,"my":38},{"lx":102,"ly":41,"mx":103,"my":40},{"lx":102,"ly":42,"mx":102,"my":41},{"lx":103,"ly":42,"mx":102,"my":42},{"lx":108,"ly":42,"mx":103,"my":42},{"lx":115,"ly":42,"mx":108,"my":42},{"lx":123,"ly":39,"mx":115,"my":42},{"lx":133,"ly":36,"mx":123,"my":39},{"lx":141,"ly":34,"mx":133,"my":36},{"lx":148,"ly":32,"mx":141,"my":34},{"lx":155,"ly":30,"mx":148,"my":32},{"lx":159,"ly":29,"mx":155,"my":30},{"lx":161,"ly":28,"mx":159,"my":29},{"lx":159,"ly":27,"mx":161,"my":28},{"lx":155,"ly":27,"mx":159,"my":27},{"lx":151,"ly":27,"mx":155,"my":27},{"lx":145,"ly":27,"mx":151,"my":27},{"lx":140,"ly":29,"mx":145,"my":27},{"lx":135,"ly":31,"mx":140,"my":29},{"lx":132,"ly":33,"mx":135,"my":31},{"lx":127,"ly":36,"mx":132,"my":33},{"lx":125,"ly":38,"mx":127,"my":36},{"lx":125,"ly":40,"mx":125,"my":38},{"lx":125,"ly":41,"mx":125,"my":40},{"lx":125,"ly":42,"mx":125,"my":41},{"lx":127,"ly":43,"mx":125,"my":42},{"lx":131,"ly":44,"mx":127,"my":43},{"lx":139,"ly":45,"mx":131,"my":44},{"lx":147,"ly":45,"mx":139,"my":45},{"lx":157,"ly":43,"mx":147,"my":45},{"lx":164,"ly":41,"mx":157,"my":43},{"lx":173,"ly":39,"mx":164,"my":41},{"lx":181,"ly":36,"mx":173,"my":39},{"lx":186,"ly":34,"mx":181,"my":36},{"lx":191,"ly":33,"mx":186,"my":34},{"lx":193,"ly":30,"mx":191,"my":33},{"lx":194,"ly":29,"mx":193,"my":30},{"lx":194,"ly":28,"mx":194,"my":29},{"lx":193,"ly":27,"mx":194,"my":28},{"lx":191,"ly":26,"mx":193,"my":27},{"lx":188,"ly":25,"mx":191,"my":26},{"lx":183,"ly":25,"mx":188,"my":25},{"lx":180,"ly":25,"mx":183,"my":25},{"lx":177,"ly":25,"mx":180,"my":25},{"lx":174,"ly":27,"mx":177,"my":25},{"lx":171,"ly":30,"mx":174,"my":27},{"lx":169,"ly":32,"mx":171,"my":30},{"lx":168,"ly":34,"mx":169,"my":32},{"lx":167,"ly":36,"mx":168,"my":34},{"lx":167,"ly":38,"mx":167,"my":36},{"lx":168,"ly":40,"mx":167,"my":38},{"lx":169,"ly":41,"mx":168,"my":40},{"lx":171,"ly":41,"mx":169,"my":41},{"lx":174,"ly":41,"mx":171,"my":41},{"lx":176,"ly":41,"mx":174,"my":41},{"lx":176,"ly":40,"mx":176,"my":41},{"lx":177,"ly":39,"mx":176,"my":40},{"lx":177,"ly":37,"mx":177,"my":39}] 

В siganturepad ( подпись к изображению ) есть специальная функция, которая преобразует вышеуказанное обратно в изображение. Вот так:

 <?php require_once '../../signature-to-image.php'; $img = sigJsonToImage(file_get_contents('sig-output.json')); // Output to browser header('Content-Type: image/png'); imagepng($img); imagedestroy($img); > 

Но если я попробую это на моей странице fpdf, вся страница сломается (я думаю, потому что я хочу встроить изображение в ячейку, а не выводить только изображение в браузер), и я получаю следующее:

• обрабатывать запрос json в PHP
• API-интерфейс Stripe API JSON возвращает null
• howto: динамическое обновление маркеров с JSON на картах google
• Ошибка 404 при получении POST
• я могу передать запрос mongodb как строку в php

Идентификатор ресурса # 10 ‰ PNG IHDRÆ7Ø7 ¢ ¶ ± IDATxœí> iP [× Ç / 'a6 ± £' ŒÀk0> ÝÝ † 6) NÒÆ ‰ ݸμM2î'nf: "d2gq" Æušq-Ió! ŽSâÄNJgRÛñ '@ 1KOFf ± õ'ÀfÖÖ /} y'Ä`çþ> x¬û®Gºÿ {Î = ç … ¹.Pm¡ € Ük @ IA (J B1PRŠ',P "" b ¤% ¡() Å @ IA (J B1PRŠ', P "" b ¤% ¡() Å @ IA (J B1PRŠ', Pc¡ € ÀÀðèT³Æ Pa × L '^ z02œ¾Ð "Ô Œ + ÔX <S¨0íÍb¼« wpåòô4, h ¤vK † ê¿Õe¨þÆà1Á óÓ ¥ bŽTÌÉËN ™ ÃL # u ªƒÇ • ¾§Y '± 27½ZÂg% {^ ƒ? ŒNÚoQ¨ ° A † ê ‡ Fnâ-Dìyྠ= ÷ ß¹> ¿¤ýËáÆ [Óþ¿ ¥ € -ºwKá /Ëy4Z1%*lvG{¹YmÀãÚØ"mÆiþ<i|êN}c÷7}ß'öûiÃoÖ×dº-¹'"VÛSïž?)ïTKxÏ?.‰aFø~ßÞcúJ¡;¥¼>:y°±{è÷ k'‰ 1øÕ »XR £" wZÔ~Å "Zà · Z £ ÛUuíîäø¨y6iÒjSjJA † êÛºMV> ƒ¸ÄCX" Äîp6u} üS ‡ Î \ × ªoìž ° άKß¼³wà £ k> lÞvàk9Š ± ¢ # _ß³vKEŽŸ · ¶9ŽžS½Qßj ™ xò + ^ Ýý3 | ü®»» idâí / ÛjOw: œ ^ fkɳ [KçÁ~'qk <ÚЬ6ÈP} WŸÅîpâãaa @ IM-2 [* æho¿ö ™ RŽbÀo1án © ®AõÝõA | «‡ …

Если я это сделаю:

 if( strlen($unterschrift) > 0){ $img = sigJsonToImage( $unterschrift ); }; 

и попытайтесь вывести:

 if ( $imgProceed == "true" ){ $pdf->imagepng($img); } else { $pdf->Cell(50,4,'',0,1); } 

все, что я получаю:

 `Call to undefined method PDF::imagepng() `/ `strpos() expects parameter 1 to be string, resource` 

Может кто-нибудь объяснить мне, что я делаю неправильно или что мне нужно сделать, чтобы включить изображение в ячейку в fpdf? Я невежественна.

Благодаря!

 $pdf->imagepng($img); ^-------------- This should be an image path (String) 

 $file = 'signature.png' ; imagepng($img, $file); ^----------- Save Image to File Instead 

 if ($imgProceed == "true") { $pdf->imagepng($file); } else { $pdf->Cell(50, 4, '', 0, 1); } 

  // decode the signature into an array $sig = json_decode($signatureInJSON); // for each line segment foreach ($sig as $line) { $lx = $line->lx; $ly = $line->ly; $mx = $line->mx; $my = $line->my; // draw the line $pdf->Line($lx, $ly, $mx, $my); }