The zip_entry_open() function is an inbuilt function in PHP which is used to open a zip entry archive for reading. Opening a file or a directory in a zip archive with the zip_entry_open function creates a new stream and establishes a connection between the stream and a file or a directory in a Zip Archive. The zip resource and the zip entry resource to be opened and sent as parameters to the zip_entry_open() function and it returns True on success and False on failure.
Syntax:
bool zip_entry_open( $zip, $zip_entry, $mode )
Parameters: This function accepts three parameters as mentioned above and described below:
- $zip: It is a mandatory parameter which specifies the zip resource to be read.
- $zip_entry: It is a mandatory parameter which specifies the zip entry resource.
- $mode: It is an optional parameter which the access type of the required for the zip archive.
Return Value: It returns True on success or False on failure.
Errors And Exceptions:
- The zip_entry_open() function returns an ER_OPEN error if the zip archive is invalid.
- The zip_entry_open() function returns an ER_NOZIP error if the zip archive is empty.
Below programs illustrate the zip_entry_open() function in PHP:
Program 1:
Suppose a zip file articles.zip contains the following file: neveropen.txt
php
<?php// Opening a zip file$zip_handle = zip_open("C:/xampp/htdocs/articles.zip");$zip_entry = zip_read($zip_handle);// Opening a zip entry archive zip_entry_open($zip_handle, $zip_entry, "rb");$file = zip_entry_name($zip_entry);if($file == true) echo("Zip file: " . $file . " open successfully <br>");// Closing a zip entry archive $flag = zip_entry_close($zip_entry);if ($flag == true) echo("Zip file: " . $file . " closed successfully");else echo("Zip file: " . $file . " cannot be closed");// Closing zip filezip_close($zip_handle);?> |
Output:
Zip file: articles/neveropen open successfully Zip file: articles/neveropen closed successfully
Program 2:
Suppose a zip file articles.zip contains the following files: neveropen.txt neveropen1.txt
php
<?php// Opening a zip file$zip_handle = zip_open("C:/xampp/htdocs/articles.zip");if(is_resource($zip_handle)) { while($zip_entry = zip_read($zip_handle)) { // Opening a zip archive entry $file = zip_entry_open($zip_handle, $zip_entry, "rb"); $file_name = zip_entry_name($zip_entry); if ($file == true) { echo("Zip file: " . $file_name . " open successfully"); echo "<br>" ; // Closing a zip archive entry $flag = zip_entry_close($zip_entry); if ($flag == true) echo("Zip file: " . $file_name . " closed successfully <br><br>"); else echo("Zip file: " . $file_name . " cannot be closed <br><br>"); } else echo("Zip Entry Cannot be opened.<br>"); } // Closing a zip archive zip_close($zip_handle);}else echo("Failed to Open" . $zip_handle );?> |
Output:
Zip file: articles/neveropen open successfully Zip file: articles/neveropen closed successfully Zip file: articles/neveropen1 open successfully Zip file: articles/neveropen1 closed successfully
Related Articles:
- PHP | zip_entry_close() Function
- PHP | zip_entry_compressedsize() Function
- PHP | zip_entry_name() Function
- PHP | zip_entry_filesize() Function
Reference: http://php.net/manual/en/function.zip-entry-open.php
