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POPHP: Passing International File Names Via PHP File Download Header Response To IOS Clients
 

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  1. POPHP: Passing International File Names Via PHP File Download Header Response To IOS Clients
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    <p>Actually i am downloading the file from my ios app using ASIHTTPRequest Library. I want to pass the international characters(it's a file name) via php header response while downloading the file. Basically am creating the new custom header called "<strong>filename-display</strong>" while construction the file download header response.</p> <p><strong>Here my PHP code:</strong></p> <pre><code>&lt;?php $dir = 'c:\좋은 아침.pdf'; $filename_display = '좋은 아침.pdf'; if (file_exists($dir)) { header("HTTP/1.1 200"); header('Content-Description: File Transfer'); header('Content-Type: application/octet-stream'); header('Content-Disposition: attachment; filename='.basename($dir)); header('Content-Transfer-Encoding: binary'); header('Expires: 0'); header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); header('Pragma: public'); header('filename-display:' . $filename_display); header('Content-Length:' . filesize($dir)); ob_clean(); flush(); readfile($dir); exit; } else { header("HTTP/1.1 404 file not found"); echo 'file_not_exists'; exit(0); } ?&gt; </code></pre> <p><strong>Client Code ASIHTTPRequest Library Delegate calls:</strong></p> <pre><code>#pragma mark #pragma ASIHTTPREQUEST delegate methods -(void)requestStarted:(ASIHTTPRequest *)request{ NSLog(@"\n file download start"); } -(void)updateUploadProgress:(ASIHTTPRequest*)request { [request updateUploadProgress]; } - (void)requestFailed:(ASIHTTPRequest *)request { //handle it } - (void)requestFinished:(ASIHTTPRequest *)request { NSDictionary *responseHeaders = [request responseHeaders]; NSLog(@"\nresponse header dict = %@", responseHeaders); NSLog(@"\nfile name: %@", [responseHeaders objectForKey:@"filename-display"]); } </code></pre> <p><strong>Output on my ios app:</strong></p> <p>file name: ?????????.pdf instead of shows the actual file name configured on php header side.</p> <p>Let me know what encoding i can use on php side?. Also it's possible to pass the xml string via header response?. </p> <p>Any help that might me appreciated. </p> <p>-loganathan</p>
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    1. COBtw., _custom_ headers should always start with `X-`, so e.g. `X-My-Custom-Header`, to avoid any possible interference with actually defined headers (or headers that might get defined in the future).
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