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(PHP ActiveX) Unzip One File to a StreamDemonstrates how to unzip a particular file contained within a .zip archive to a Chilkat stream.
<?php // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Zip') $zip = new COM("Chilkat.Zip"); // First open a .zip. $success = $zip->OpenZip('qa_data/hamlet.zip'); if ($success != 1) { print $zip->LastErrorText . "\n"; exit; } // Find the entry to be unzipped to a stream.. // entry is a Chilkat.ZipEntry $entry = $zip->FirstMatchingEntry('*hamlet.xml'); if ($zip->LastMethodSuccess != 1) { print $zip->LastErrorText . "\n"; exit; } // There are three ways we can unzip (inflate) to a stream. // // 1) Set a sink file on the stream object and call UnzipToStream synchronously. // This unzips to the stream's sink (which is to simply unzip to a file in the filesystem). // // 2) Create a stream object and call UnzipToStreamAsync. This starts the unzip in a background // thread (after Task.Run is called). Your application can then read the unzipped (inflated) file // directly from the stream. // // 3) (not shown in this example) Unzip to a stream object that is the source of something else. // // ---------------------------------------------------------------- // Case 1: Unzip to a file by setting the sink of streamA to a file. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Stream') $streamA = new COM("Chilkat.Stream"); $streamA->SinkFile = 'qa_output/hamletA.xml'; $success = $entry->UnzipToStream($streamA); if ($success != 1) { print $entry->LastErrorText . "\n"; exit; } // Close the stream to close the output file. $success = $streamA->WriteClose(); // ---------------------------------------------------------------- // Case 2a: Uzip to a stream asynchronously. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Stream') $streamB = new COM("Chilkat.Stream"); // unzipTask is a Chilkat.Task $unzipTask = $entry->UnzipToStreamAsync($streamB); if ($entry->LastMethodSuccess != 1) { print $entry->LastErrorText . "\n"; exit; } // Start the background unzip thread. $unzipTask->Run(); // Read the stream. (this is reading the unzipped file data) // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.StringBuilder') $sb = new COM("Chilkat.StringBuilder"); while ($streamB->EndOfStream != 1) { // Each call to ReadSb appends to the contents of sb. $streamB->ReadSb($sb); } $sb->WriteFile('qa_output/hamletB.xml','utf-8',0); print 'Success.' . "\n"; // ---------------------------------------------------------------- // Case 2b: Uzip to a stream asynchronously and emit output while reading. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Stream') $streamC = new COM("Chilkat.Stream"); // unzipTask is a Chilkat.Task $unzipTask = $entry->UnzipToStreamAsync($streamC); if ($entry->LastMethodSuccess != 1) { print $entry->LastErrorText . "\n"; exit; } $unzipTask->Run(); while ($streamC->EndOfStream != 1) { $s = $streamC->readString(); print $s . "\n"; } print 'Success.' . "\n"; ?> |
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