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我正在使用 dompdf 生成 PDF 文件。在文件中,我包含了一个由 PHP 通过使用动态生成的图像;

<img src="image.php" />

当我查看该页面时,我可以看到一条错误消息“找不到图像”,它链接到据称未找到的图像,当您单击它时显示正常。

我尝试向生成图像的页面添加 .png 扩展名,但这没有任何区别。我还将生成的图像保存到服务器并链接到它,它工作正常。

我能想到的解决此问题的唯一方法是将图像保存在服务器上,然后链接到该图像。理想情况下,我不想这样做,所以我想知道以前是否有人遇到过这个问题,或者是否有人能想到解决办法。

我正在使用的 dompdf 版本是 0.6.0 beta 3,我将它与 CodeIgniter 一起使用。

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4 回答 4

3

您如何将 HTML 文档加载到 dompdf 中?$dompdf->load_html()? $dompdf->load_html_file()? 要访问 PHP 生成的图像,您应该使用后者。此外,除非您通过 Web 服务器加载文档,否则 dompdf 将获取文件本身,而不是呈现的文件。由于 image.php 不是有效的图像类型 dompdf 将无法加载它。

有两种解决方案:

  1. 通过您的网络服务器加载您的文档,例如$dompdf->load_html_file('http://example.com/mydoc.html');. 当您这样做时,图像参考将被解释为http://example.com/image.php.
  2. 使用完整的 URL(包括域)引用您的图像,以便您的服务器在将其发送回 dompdf 之前对其进行处理,例如<img src="http://example.com/image.php" />.
于 2012-07-06T17:38:58.637 回答
3

首先添加这个标签img src="image.php",你需要指定你的图片所在的完整根目录,所以它大部分以JPG或PNG等所需的格式结尾,并且在配置文件(dompdf_config.inc.php)中你需要更改这一行DOMPDF_ENABLE_REMOTE,他的默认值为 false 将其更改为 true ,仅此而已:)

于 2013-06-04T21:31:51.350 回答
1

您可以使用支持的 Base64 图像数据作为替代方案

$html = '<div>
    <p>IMAGE</p>
    <img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAMgAAABMCAIAAACnG28HAAAABmJLR0QA/wD/AP%2BgvaeTAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAB3RJTUUH1AgeBS42B7vBqgAAEhBJREFUeNrtnd%2BPHEcVhfcfBoknxAOIh0g88EsIIqKI1UprObYVe23FwQmskO0EYSskkCgkEo5MCMgoGBABhBDkIXzV3%2Byh6Onu6ZnZ2Zm1u1Qa9fb0VFfdOvfcW7du9%2B59NpWpbKDsTSKYygSsqUzAmsoErKlMZQLWVDZeHj3%2B67vvf/DSjZcODy/%2B9N5bH374O85MwJrKWpACT/vPfe%2B5Z5/97re/8cxXv/L1rz3DwcEPngdhS8FrAtZUZgWWuvHiJcBkBVugivrlL30RbB0eHLx5784ErKksUWCj6zd/DHqAEZD6wuc/x8GNo6uvvnLLPwGZZnEC1lSWsH1CSnKyiq3LV657Ust45dLFCVhTGVXACoiJOyWe8LHEmSdfu3NbK7krphBtgDzp0zR/uynSt3/xJl65AKLKVaDq4YN3WQny%2Bdrxy5cv7MNb1KXs4AaBRc/UhqX4cyrDnhCOjjhgptfHKI3IVVR569Wb1/78x0f1ZWCL88BrKbraFLAgT/CkNkzAOi2uCqqs6/AWremtp7Log8D%2B/emnrSvhLSC1LKo2AixFoD8ItQIv2GtCxvp0VTvXiHcdqbLcC6RwzJkjUTUPLI1Pi8a2Ayw6gaMXKbBqBfUTMtYsPzq%2BG08IF3sdYIFRHCmNIKjieAVC2gKwGLBeocCi6whlQsb6RkBPKLGAldUV10qMGlXHi9pEn08fWFAUfhXunr0HYRDYClw6lRpYiLQ2hQh22WVaC6OGFZisDU3N6QMLDaC7ki0uIeZ8ijisDyzE6GIo2GKFtEJT%2BOz8lnZ0rTbnpZw%2BsDDYAAvG0n%2BffKz1S4lPHl3Vu8AOruy8S1dx/7Ekm%2BvzBhjrzu2oFxXSegrtIFNo8slptebGi8DSxwJYnYu44RWAnKd3hSt8noDFgI3YylhQ7kYHsGvUgutDRbtgbkTBGfVqHe0CWDAWKiosXBsuuySiJ86IaTBM0EYVfm8Twi2kdfOaw8DZWs0bOHcFGDHZKBKONkNGnUAYxyCM84hFyawWJsAIACwhlbSWpRKkErsCVTS1ocXgqQELYSFBPiMvIEXFfkvd5og9DVwFaJgwgcUB3gxjRxRMP9gqJw8vMrsYtWUTMrkeaBp5j/PO8XjKYXYuX7lOf6iJiO4osPQhkKYsTeVPrD49dksnOWJPPGMxcGadITNnVNDDkJMj4CauAikr5cOLLM24YAy83B%2BkmsHilk4ChOPJL0FRezhgB51WWrZ6Jp/1ZacMLG9MR8ETyocmISM6ypgRKF3hJFUfa6nxOxJNhgdb9LuXWqww8abzFhAcHMBS2kGEAHPzybclntdooJeBswHOkKLkmGRyBlL672XP%2BJVb4912usHd458AbmuSF6ia8mxH6iLzSTf4oV2iemD/6Wrn/O6toJ2aOW42k2YjShMZEFlR2ZvXSip%2B42xyfgxEVPE4Afyc1pbNs14fUnT14YN3A%2B5RJubCPl1ljvkEOoh7ngw4w/lco6D6RqdyImQFIra0X5wxpZPKwch4AQ26Tk%2BSTNDZqn3n/cpbJ0Ir9eqxzQ95OWDRxYLxkxVftgXMkPFYgDsGBIFAF4JDolYvNRY2qM%2B7vp1a2AEukGPMduKTP8cAy0cP6HCBQoOqgYsLtnBAGzeLWl9cBw6iVCYg6E4IMs4HWMhqpHAYSCDVh5sxNZAKn4FsRsQ6YHVgaafqXAvgRaOCLGk9iQ4HeXDmwhminYAy9IsetKS/Ylzt%2BGUmfrgPBggcnQZoTGobfXOMdBgRj4kDF5f0xUsynG6WOQUCywi7Bitg0k%2BP255pljMWylbrNkBFnYyV9UFCskJKh0fLiCIxlr4O7I20EfRP60brrf1wBCq8vHEQrX5wfnjxwvSE8OpURj3NdRx/WgYfwEUPuk8E6gw3MrPbboxZc%2Bity1gjyYMuCSyxVQMr6Ubqlaprl2orlulX2n3oT%2BxjmH4SFcs%2BT3ysaHgsieRE/0NRAzO7N9Ka6HUiRK1bJ%2Bu4qVlvaTEA/hy4vaE/fbUAK7lc8lbfnA0YOL9i8kLdzGIf%2Bem0mk4pT4iVYcZKvNHJGOkL0gfDEGipZldUgQOjCXmmTzAhVfQWAcZbiGAV1HwnvUWfI1VvCgliJOyQuZ0ROHBDhTtoiurBsvtyeyPpKls0A7k76mISHR0DEhzYeWC%2BXf3q9TMeBpDgqiOHctTs1rwCBaQwj1o1lftGv3XXOkPVZpGrM67gCsM3JC%2Bj9PWc66P3/HykuPWf4u%2B7LcNYolc6UjTeyhLWSuq81wZrHlj0vH7YZp6iTGwPdBC4Se6nG4jfGxWaO7H6w8sQembcIT4BUkBMfTYIgSrEJFwLIG1riQ438TANTQ0soVPWI4cXW0B3kW/QSAIID80nSZs6xmQbfNLvKUGBJm7E%2Bb6eM1K9n9Dh2AX10VUDyPGxuIU%2BUFZCfQnmDM2u1gvDeXut6aj99NrpLl7Bhf0zSAtYzFiJrTGRCy9m%2BhlqGMsVYqezopSpSopZj8YgVnEgjZkqGF%2BEmYhj28pTM28JROpdImLuwidnuFErJmlwAQCpNgafjAWI2oGlg3ZwZqxHeNAWqJfGaZYBIlVm1ycaYvcl74GbcnHNQ/M7hsgQgegDBHy6xdK/wD2D2M3eMF0Z%2BdXej0lgldjVmFnc%2BcJ%2BJ7CQiHbdAbccqZJ700TLbIc%2BIDKBRZc8qRaGROP8JhjGDHEXLqDyFcdxlrkdf7oE0wjSfon33LwmNAV93xzbtxmLH10dE84w5KPCcGujMHw6Rs3TcNRUz8Gn/5KhAExb14BXuuQ1RmWZAsMis0SmTWbLjAKWCyUty8g9y%2BL6Nb/SXTDKPG8p9FXjqM5fYOK8sFPiwUSdsl2LyTBB%2BEb3qzAWNq4Ji3ClJpW7a%2B9KmKBZOkiW5mX4fJGbfX3%2BuxbfaOcYYKlsVCOfCTQUvT04CLWDieFMGDPfW4v/vvCNN9KdUM7zHL8FYM3oCt1F40cn67nPkzBptjJi5lrgKM9Ddpn8YlKPX3YdpDjyGEnCE9ISkhVAQiE7/16vz6TLrGlzf9OMA7uXuxsf575uJIubedAYbRf0C/dVwlXJpzXBQUPM%2BcT/Mt8D2DL/s14YdmYlMZCEA9x%2BVoddIpzN1u3egGuFFAqRsvgah3F3LeQS5WgkpvafamA5VC7rbM0ncd3ZqJdIkpCkqF4ar6LGC6bb3ggACQK7YdTbQRkkaw2Nm2o15C1JrtUx2oz2c%2BVAVMLN6YQP1KJoiLLStVqouuq5tJegA8clTD2IbLfgEhJDOGeTHrc3HCPWYI3xrspyrPFD9cQ17fEW494qU9lCJ4wr%2B1ZeXIaO8ll7x3r9%2BkbaIykhe5dBYRaYTqr%2BU1ntN6gquwJzm/wGO0r/T%2BLjncAKgnXd%2BhxtWVkfDgRrlAWWK2i9BaNHC%2BOIrhaTOaLrSUUaA6sH7b6rb0e9ZWDp9srhC7tiKpIKoVK6wgqw9B7qELPIkDY6H5XkJ1HomhXcUpXJZslPjc8emqxVX7eJani9cFvjHrlQ6iQJJs98Ms1Wa6u4LLuaZW/SBFrus8sCjY6m1uWLNSrqKwjUDUfR56gZ8TGU6Ps53EuVvdSBAdbUjMSdXee5sdMBFjSQVdsAY%2BmySFEGymfT2Tg38YSCnpnvfLKtUczcyc5Gi64Uh3vSLaGL2gA3gdAS15kzbcWkNvgwwm7OxfyVLRNsCqjOQEhLdPpkW%2BJkIs8tFLXFITt2ac90j1o/pcawKVci8M5sC8677SEEdf%2BL2jdRXBclA7FcA3XZh90ysLTojFzvpLZl2Ycya0Kzkuf/Y1nqxUhc7HjfmhsbT4ZgeEtcZs9h3lYmcFrvznaaNt%2BaYgJnsppokzN9gWaBZbw0mTBJLEYstY8l6MNhMTeJoRfao7Vml62tkM2TATOfr0GYgdmkScnrehQ2aMTcZY2LviTh9FlDlbAG1jZNoeKT0rPg15thwFKFU5X95pbgijfQCE49Q76xhrNlQWPLdD%2BNMKn3Sjy8zQXzInNhmFBWNs46sWJ%2BFX3OLiRtDguFn8y8sWaHx/18408mQWjCXM0Z6w%2BHJS1OMvaNGvMkobdk1fKaEpP9YF0ILZ0%2BiUEfV3yCVehnd6jTTy2W/YT7Hf42gaWW64zXxF7vtCdVpnMDUV9EWjLiYAacjCWN%2B21B6ouXCi9euY4IkpI6sHuvnxGuEit99lr%2By17nsGWv49euSSWtbPjotImA2YMJTQA5cTW9LgMcbn32EYlEWGxis1Zl4EJZUIokCYnPFsVKq2aBa4s7TaGzEGLTnm7Zx8quZ5IY67fehPMHNp7UlfrJVYGl7chDrUJqFoY9ySM1ublvIS1jOZ3GlwcCImptYuUjQycMKhPPb%2BlPFm609r9XvjZ%2BNOThOlHJFG%2B9mfWBbV3xBJhMBcvuoV6dPCSk%2Bp6oCefp2psU2eItlcoFPkNQu7a8KtQqaQVmWUcnK/zZY/%2BL3h0oM%2Bmc%2BvM6yCn/S/KumRNechEwMH4DV/bBXaPhnXlR4n7%2ByD18hu/mvxsv9DZzxu2yVhBJySQ2rDCSEvQWXCrWXp0UyHmaNW1maJHRtFCEeXQVbLUuFlh5Rmj7prAm0iAgzwUMjLaTWuoHDF0AhrRUUF14HVWnanjwyqt4xE2Ec2RnVkgL6Uxniyl0R8V8qQS7l21/9lLGhqv09JMOZcvDChMfrk9t3PBOFslOAKveHzBfZ1nZmTCZJz2SgWToUt/CBZGU5kpnx1/URs/jC%2BPIn8rTRAh2IYwG%2BtM3NbNNqsbZjU%2B8ibdhrQKsNeXlO0KCmzqyYMRSnVstTXGLwNLp3PG3f81sTpPEoU%2B88mtqdgtYWWGZI%2BourJ6m/6Tls3NYDN9nM3TH30yBxuq2J8D2JDBW7cW7gNLY%2ByjiOX0LjY5jWf1duT7m2bKt9zbeyCzi%2BGQwVgxicjtdBJ3Tl2aVvaYmJd8IPmSw46%2BVE1h5%2Bqi8FXbriX6nji3reX%2BJcr1d2PmczA7yax58op7NC9Knf3myuo8lsOY3j7dV/vaX33eqgYHuAGv7Oe%2BbLv9pyjmC1L/%2B8fizk3wBfWEfpdTN%2BvV7b3gZB1QvbhXO//bhr6he/M5br99//ZiDV2/d%2BuFLR9Y7xzdblZNewDHXW/ktP/T47u2fcMy3nrHlAEsfK9aQP89A7Htno0ZKWYkzZgSBmC6/UNwuKsdKCol//OjhhvQ4srYznPcr7uhNc96Tdphf%2BUOmzQ7X%2BfjuRzF53/nWN1t1//nvOzqrZ6jzV/pV5/lTqebz5Mk8jsWroIxknJ3UWv9XARaT6nTWRNqpbZ18GwWKxuSgFmuT13dQiy9S7pQp1zuLN66%2BoAjqe1Gjzd6OUXBlKj8cnsXWtxx7uzETbHCIAZl6kMwCSOXo2g3asTJeqs36Z0TBZV55fHzbevfuz/ikEQ6ohRffef/%2BvfvUN37%2BNn%2B%2B994DD7wsLdgsB/xJB%2BoGvSxvXM7CsESk9/9vUjpHna9ovJatxCnXRlfn6WCvT3y06KS2MMTJ8WrnADJmRqt0WgWp/eajj5WmIuYnSyklN6qPlbhC8e7MEI1zd9oXAV7g9NfVn1jpCT9Jn%2Bkk1ciccSwfIm2FsmLic/DJ3/9JzQUcO941WYFf1c32LTWSXG%2B4QR/rwQcfRfKP//TJoz885jjIZuCZMpCEKLQwHMi%2BfVUuoBZgpRO0wgTQHE0MTyRTwj1UC7tIz2yEA8/U8lrTqNMglQkGHAqCT44Ljf/yHaXDBc5WLeu%2B%2B7bmtXVmeLZkLJPJ9F12/JWFyZrMI0wLF%2Ba13BR%2BJhdBCUFORlelTzVWftlbKHd/Xxjr3n0xvlD0T3zx8cPkbox/GHpry9iT51zM7dloEFHkTeGG1UNZeQ7Ct07sbG/zTpe8nOgMgroTsFYpeSWOby7Z8ZCvGbnZK5yAtdPAmqV9jk5N22LxscRkZpfHIauHhH0v5gSsXSlmUJ2L7Skjunn/Vt447MtRzKKegDWVVTzCkpJ1eDGvfjRb32f4NmTKJ2A9FcWnhvKWnrwrS4RtYh99AtZTUcqLSU8eAa/fpy17TYw1ldWtoW5W3ouc9yX3vZRlAtZUFhcfi8q/PMlrz/2/hxOwprKWNfTB2sTfh9%2BBPQFrKmOtoU/x5%2BVQG32qYgLW00Va/vcb/z3nRu81AevpKr5tYPi9EhOwprK7ZQLWVCZgTeX8lP8CuDenorrKqfIAAAAASUVORK5CYII%3D">
</div>':

require_once('dompdf/dompdf_config.inc.php');
$dompdf = new DOMPDF ();
$dompdf->load_html ($html);
$dompdf->render ();
$dompdf->stream ("Test.pdf", array ("Attachment" => false));

从base64中的php获取图像:

//getIMG.php?data=1&id=123
if ($data == 1) {
    echo "data:image/".$adj->type.";base64,"
            .str_replace ("\n", "", base64_encode ($adj->imageBinary));
}
于 2016-01-13T17:46:28.960 回答
0
<?php 

 //Use this code to convert your image to base64
 // Apply this in a view 
  
$path = base_url('images/your_img.png');// Modify this part (your_img.png
$type = pathinfo($path, PATHINFO_EXTENSION);
$data = file_get_contents($path);
$base64 = 'data:image/' . $type . ';base64,' . base64_encode($data); <br>
?>

// using image tag that will output to the browser.

<img src="<?=$base64?>" /> // This will output the image in pdf to the browser.
于 2021-09-06T13:33:55.407 回答