wp_zip_file_is_valid( string $file ): bool

Determines whether the given file is a valid ZIP file.

Description

This function does not test to ensure that a file exists. Non-existent files are not valid ZIPs, so those will also return false.

Parameters

$filestringrequired: Full path to the ZIP file.

Return

bool Whether the file is a valid ZIP file.

Source

			$archive->close();
			return true;
		}
	}

	// Fall through to PclZip if ZipArchive is not available, or encountered an error opening the file.
	require_once ABSPATH . 'wp-admin/includes/class-pclzip.php';

	$archive          = new PclZip( $file );
	$archive_is_valid = is_array( $archive->properties() );

	return $archive_is_valid;
}

/**
 * Unzips a specified ZIP file to a location on the filesystem via the WordPress
 * Filesystem Abstraction.
 *
 * Assumes that WP_Filesystem() has already been called and set up. Does not extract

View all references View on Trac View on GitHub

Hooks

apply_filters( ‘unzip_file_use_ziparchive’, bool $ziparchive ): Filters whether to use ZipArchive to unzip archives.

Uses	Description
apply_filters()`wp-includes/plugin.php`	Calls the callback functions that have been added to a filter hook.

Used by	Description
File_Upload_Upgrader::__construct()`wp-admin/includes/class-file-upload-upgrader.php`	Construct the upgrader for a form.

Changelog

Version	Description
6.4.4	Introduced.

User Contributed Notes

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