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September 10, 2020 06:28
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Handle HTML styled base64 images in PHP from something like an AJAX request. (Requires jQuery & Bootstrap 4)
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| /** | |
| * Takes base64 html standard image blob string and saves it to the CDN. Returns URL of image. | |
| * | |
| * @param $_POST["base64"] // E.G: data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAApsAAAH0CAYA ... | |
| * @param $_POST["type"] // Mime type, e.g. image/jpg image/gif | |
| * @return string|void | |
| */ | |
| if (isset($_POST["base64"]) && isset($_POST["type"])) { | |
| $deleteMeFromString = "data:{$_POST["type"]};base64,"; | |
| $strLen = strlen($deleteMeFromString); | |
| $ext = mime2ext($_POST["type"]); | |
| $cleanB64 = base64_decode(substr($_POST["base64"], $strLen)); | |
| $fileName = md5(time() . uniqid()) . "." . $ext; | |
| // Place the file | |
| $ifp = fopen($fileName, 'wb'); | |
| fwrite($ifp, $cleanB64); | |
| fclose($ifp); | |
| // Return the filepath | |
| header('Content-Type: application/json'); | |
| echo json_encode(["path" => "/" . $fileName]); | |
| } else { | |
| exit(); | |
| } | |
| /** | |
| * Convert mime type to extension. Credit to https://gist.github.com/alexcorvi/df8faecb59e86bee93411f6a7967df2c#gistcomment-2722664 | |
| * | |
| * @param $mime | |
| * @return bool|string | |
| */ | |
| function mime2ext($mime) { | |
| $mime_map = [ | |
| 'video/3gpp2' => '3g2', | |
| 'video/3gp' => '3gp', | |
| 'video/3gpp' => '3gp', | |
| 'application/x-compressed' => '7zip', | |
| 'audio/x-acc' => 'aac', | |
| 'audio/ac3' => 'ac3', | |
| 'application/postscript' => 'ai', | |
| 'audio/x-aiff' => 'aif', | |
| 'audio/aiff' => 'aif', | |
| 'audio/x-au' => 'au', | |
| 'video/x-msvideo' => 'avi', | |
| 'video/msvideo' => 'avi', | |
| 'video/avi' => 'avi', | |
| 'application/x-troff-msvideo' => 'avi', | |
| 'application/macbinary' => 'bin', | |
| 'application/mac-binary' => 'bin', | |
| 'application/x-binary' => 'bin', | |
| 'application/x-macbinary' => 'bin', | |
| 'image/bmp' => 'bmp', | |
| 'image/x-bmp' => 'bmp', | |
| 'image/x-bitmap' => 'bmp', | |
| 'image/x-xbitmap' => 'bmp', | |
| 'image/x-win-bitmap' => 'bmp', | |
| 'image/x-windows-bmp' => 'bmp', | |
| 'image/ms-bmp' => 'bmp', | |
| 'image/x-ms-bmp' => 'bmp', | |
| 'application/bmp' => 'bmp', | |
| 'application/x-bmp' => 'bmp', | |
| 'application/x-win-bitmap' => 'bmp', | |
| 'application/cdr' => 'cdr', | |
| 'application/coreldraw' => 'cdr', | |
| 'application/x-cdr' => 'cdr', | |
| 'application/x-coreldraw' => 'cdr', | |
| 'image/cdr' => 'cdr', | |
| 'image/x-cdr' => 'cdr', | |
| 'zz-application/zz-winassoc-cdr' => 'cdr', | |
| 'application/mac-compactpro' => 'cpt', | |
| 'application/pkix-crl' => 'crl', | |
| 'application/pkcs-crl' => 'crl', | |
| 'application/x-x509-ca-cert' => 'crt', | |
| 'application/pkix-cert' => 'crt', | |
| 'text/css' => 'css', | |
| 'text/x-comma-separated-values' => 'csv', | |
| 'text/comma-separated-values' => 'csv', | |
| 'application/vnd.msexcel' => 'csv', | |
| 'application/x-director' => 'dcr', | |
| 'application/vnd.openxmlformats-officedocument.wordprocessingml.document' => 'docx', | |
| 'application/x-dvi' => 'dvi', | |
| 'message/rfc822' => 'eml', | |
| 'application/x-msdownload' => 'exe', | |
| 'video/x-f4v' => 'f4v', | |
| 'audio/x-flac' => 'flac', | |
| 'video/x-flv' => 'flv', | |
| 'image/gif' => 'gif', | |
| 'application/gpg-keys' => 'gpg', | |
| 'application/x-gtar' => 'gtar', | |
| 'application/x-gzip' => 'gzip', | |
| 'application/mac-binhex40' => 'hqx', | |
| 'application/mac-binhex' => 'hqx', | |
| 'application/x-binhex40' => 'hqx', | |
| 'application/x-mac-binhex40' => 'hqx', | |
| 'text/html' => 'html', | |
| 'image/x-icon' => 'ico', | |
| 'image/x-ico' => 'ico', | |
| 'image/vnd.microsoft.icon' => 'ico', | |
| 'text/calendar' => 'ics', | |
| 'application/java-archive' => 'jar', | |
| 'application/x-java-application' => 'jar', | |
| 'application/x-jar' => 'jar', | |
| 'image/jp2' => 'jp2', | |
| 'video/mj2' => 'jp2', | |
| 'image/jpx' => 'jp2', | |
| 'image/jpm' => 'jp2', | |
| 'image/jpeg' => 'jpeg', | |
| 'image/pjpeg' => 'jpeg', | |
| 'application/x-javascript' => 'js', | |
| 'application/json' => 'json', | |
| 'text/json' => 'json', | |
| 'application/vnd.google-earth.kml+xml' => 'kml', | |
| 'application/vnd.google-earth.kmz' => 'kmz', | |
| 'text/x-log' => 'log', | |
| 'audio/x-m4a' => 'm4a', | |
| 'audio/mp4' => 'm4a', | |
| 'application/vnd.mpegurl' => 'm4u', | |
| 'audio/midi' => 'mid', | |
| 'application/vnd.mif' => 'mif', | |
| 'video/quicktime' => 'mov', | |
| 'video/x-sgi-movie' => 'movie', | |
| 'audio/mpeg' => 'mp3', | |
| 'audio/mpg' => 'mp3', | |
| 'audio/mpeg3' => 'mp3', | |
| 'audio/mp3' => 'mp3', | |
| 'video/mp4' => 'mp4', | |
| 'video/mpeg' => 'mpeg', | |
| 'application/oda' => 'oda', | |
| 'audio/ogg' => 'ogg', | |
| 'video/ogg' => 'ogg', | |
| 'application/ogg' => 'ogg', | |
| 'font/otf' => 'otf', | |
| 'application/x-pkcs10' => 'p10', | |
| 'application/pkcs10' => 'p10', | |
| 'application/x-pkcs12' => 'p12', | |
| 'application/x-pkcs7-signature' => 'p7a', | |
| 'application/pkcs7-mime' => 'p7c', | |
| 'application/x-pkcs7-mime' => 'p7c', | |
| 'application/x-pkcs7-certreqresp' => 'p7r', | |
| 'application/pkcs7-signature' => 'p7s', | |
| 'application/pdf' => 'pdf', | |
| 'application/octet-stream' => 'pdf', | |
| 'application/x-x509-user-cert' => 'pem', | |
| 'application/x-pem-file' => 'pem', | |
| 'application/pgp' => 'pgp', | |
| 'application/x-httpd-php' => 'php', | |
| 'application/php' => 'php', | |
| 'application/x-php' => 'php', | |
| 'text/php' => 'php', | |
| 'text/x-php' => 'php', | |
| 'application/x-httpd-php-source' => 'php', | |
| 'image/png' => 'png', | |
| 'image/x-png' => 'png', | |
| 'application/powerpoint' => 'ppt', | |
| 'application/vnd.ms-powerpoint' => 'ppt', | |
| 'application/vnd.ms-office' => 'ppt', | |
| 'application/msword' => 'ppt', | |
| 'application/vnd.openxmlformats-officedocument.presentationml.presentation' => 'pptx', | |
| 'application/x-photoshop' => 'psd', | |
| 'image/vnd.adobe.photoshop' => 'psd', | |
| 'audio/x-realaudio' => 'ra', | |
| 'audio/x-pn-realaudio' => 'ram', | |
| 'application/x-rar' => 'rar', | |
| 'application/rar' => 'rar', | |
| 'application/x-rar-compressed' => 'rar', | |
| 'audio/x-pn-realaudio-plugin' => 'rpm', | |
| 'application/x-pkcs7' => 'rsa', | |
| 'text/rtf' => 'rtf', | |
| 'text/richtext' => 'rtx', | |
| 'video/vnd.rn-realvideo' => 'rv', | |
| 'application/x-stuffit' => 'sit', | |
| 'application/smil' => 'smil', | |
| 'text/srt' => 'srt', | |
| 'image/svg+xml' => 'svg', | |
| 'application/x-shockwave-flash' => 'swf', | |
| 'application/x-tar' => 'tar', | |
| 'application/x-gzip-compressed' => 'tgz', | |
| 'image/tiff' => 'tiff', | |
| 'font/ttf' => 'ttf', | |
| 'text/plain' => 'txt', | |
| 'text/x-vcard' => 'vcf', | |
| 'application/videolan' => 'vlc', | |
| 'text/vtt' => 'vtt', | |
| 'audio/x-wav' => 'wav', | |
| 'audio/wave' => 'wav', | |
| 'audio/wav' => 'wav', | |
| 'application/wbxml' => 'wbxml', | |
| 'video/webm' => 'webm', | |
| 'image/webp' => 'webp', | |
| 'audio/x-ms-wma' => 'wma', | |
| 'application/wmlc' => 'wmlc', | |
| 'video/x-ms-wmv' => 'wmv', | |
| 'video/x-ms-asf' => 'wmv', | |
| 'font/woff' => 'woff', | |
| 'font/woff2' => 'woff2', | |
| 'application/xhtml+xml' => 'xhtml', | |
| 'application/excel' => 'xl', | |
| 'application/msexcel' => 'xls', | |
| 'application/x-msexcel' => 'xls', | |
| 'application/x-ms-excel' => 'xls', | |
| 'application/x-excel' => 'xls', | |
| 'application/x-dos_ms_excel' => 'xls', | |
| 'application/xls' => 'xls', | |
| 'application/x-xls' => 'xls', | |
| 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' => 'xlsx', | |
| 'application/vnd.ms-excel' => 'xlsx', | |
| 'application/xml' => 'xml', | |
| 'text/xml' => 'xml', | |
| 'text/xsl' => 'xsl', | |
| 'application/xspf+xml' => 'xspf', | |
| 'application/x-compress' => 'z', | |
| 'application/x-zip' => 'zip', | |
| 'application/zip' => 'zip', | |
| 'application/x-zip-compressed' => 'zip', | |
| 'application/s-compressed' => 'zip', | |
| 'multipart/x-zip' => 'zip', | |
| 'text/x-scriptzsh' => 'zsh', | |
| ]; | |
| return isset($mime_map[$mime]) ? $mime_map[$mime] : false; | |
| } |
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| <div class="form-group row"> | |
| <label for="imgContainer" class="col-sm-2 form-label">Images</label> | |
| <div class="col-sm-10"> | |
| <div class="row" id="imgContainer"> | |
| <!--Images go here--> | |
| <button type="button" onclick="$('#uploadImg').click();" class="col-2 btn btn-block btn-primary">Add image</button> | |
| </div> | |
| </div> | |
| <input style="display: none;" id="uploadImg" type="file" accept="image/*" alt="Upload image." onchange="insertNewImage(this);" class="col-2 btn p-0"> | |
| </div> | |
| function insertNewImage(ele) { | |
| var img = ele.files[0]; | |
| var reader = new FileReader(); | |
| // Get image contents | |
| reader.readAsDataURL(img); | |
| reader.onload = function (result) { | |
| // // Send base64 in AJAX to get uploaded | |
| $.ajax({ | |
| method: "POST", | |
| url: "/ajax_handle_b64IMG.php", | |
| data: { | |
| base64: result.target.result, | |
| type: img.type | |
| } | |
| }).done(function (data) { | |
| console.log(data); | |
| // Make clickable images that insert into the news post message | |
| $("#imgContainer").append("<img class='col-2' src='" + data.path + "'>"); | |
| }); | |
| } |
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