(PHP Extension) Find a ZIP Entry by Exact Path Using EntryOf

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This example demonstrates how to use the EntryOf method to find a ZIP entry whose stored path exactly matches a specified path.

Unlike EntryMatching, which performs wildcard matching, EntryOf performs an exact path lookup.

This method is useful when:

• The exact ZIP path is already known
• Retrieving a specific file or directory entry
• Verifying whether a particular entry exists in the ZIP archive

Suppose the ZIP archive contains:

docs/
docs/readme.txt
docs/manual.pdf
images/logo.png
data/config/settings.json

ZIP archives may optionally contain explicit directory entries such as docs/. These directory entries can also be retrieved using EntryOf.

The example:

• Finds an exact file entry
• Finds an exact directory entry
• Demonstrates the difference between file and directory entries

Note: This example requires Chilkat v11.0.0 or greater.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux

<?php

include("chilkat.php");

$success = false;

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$success = false;

// Open an existing ZIP archive.
$zip = new CkZip();

$success = $zip->OpenZip('example.zip');
if ($success == false) {
    print $zip->lastErrorText() . "\n";
    exit;
}

$entry = new CkZipEntry();

// ------------------------------------------------------------
// Find a specific file entry by its exact ZIP path.

$success = $zip->EntryOf('docs/readme.txt',$entry);

if ($success == true) {
    print 'Found file entry:' . "\n";
    print '  FileName = ' . $entry->fileName() . "\n";
    print '  IsDirectory = ' . $entry->get_IsDirectory() . "\n";
    print '' . "\n";
}

// ------------------------------------------------------------
// Find a directory entry.
// 
// ZIP archives may optionally contain explicit directory entries.
// In this example, "docs/" is a separate directory entry.

$success = $zip->EntryOf('docs/',$entry);

if ($success == true) {
    print 'Found directory entry:' . "\n";
    print '  FileName = ' . $entry->fileName() . "\n";
    print '  IsDirectory = ' . $entry->get_IsDirectory() . "\n";
    print '' . "\n";
}

// ------------------------------------------------------------
// Attempt to find a non-existent entry.

$success = $zip->EntryOf('images/missing.png',$entry);

if ($success == false) {
    print 'The entry images/missing.png was not found.' . "\n";
}

$zip->CloseZip();

print 'Done.' . "\n";

?>