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(PHP Extension) Compress String Feed to Base64This example receives incoming text data in chunks, compresses as a stream, and accumulates the compressed data in base64. The purpose is to demonstrate the BeginCompressStringENC, MoreCompressStringENC, and EndCompressStringENC methods.
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. $sbCompressedBase64 = new CkStringBuilder(); $compress = new CkCompression(); $compress->put_Algorithm('deflate'); $compress->put_Charset('utf-8'); $compress->put_EncodingMode('base64'); $sbIndex = new CkStringBuilder(); for ($i = 0; $i <= 24; $i++) { // Note: It is possible (and normal) for a BeginCompress* or MoreCompress* method to return // an empty string (or 0 bytes). When this happens, the input data is not lost. It will be flushed // in a subsequent call. $sbIndex->Clear(); $sbIndex->AppendInt($i); if ($i == 0) { $sbCompressedBase64->Append($compress->beginCompressStringENC($sbIndex->getAsString())); } else { $sbCompressedBase64->Append($compress->moreCompressStringENC($sbIndex->getAsString())); } $sbCompressedBase64->Append($compress->moreCompressStringENC(': This is a line of data to be compressed...\r\n')); } // Flush any remaining output. $sbCompressedBase64->Append($compress->endCompressStringENC()); print 'The base64 encoded compressed text:' . "\n"; print $sbCompressedBase64->getAsString() . "\n"; // Now decompress in one call: $originalText = $compress->decompressStringENC($sbCompressedBase64->getAsString()); print $originalText . "\n"; ?> |
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