PHP Phar::isValidPharFilename() Method: Usage and Examples

PHAR archives can package multiple resources into a single file. Phar::isValidPharFilename() Method addresses a specific part of that process: validates whether a filename has an acceptable PHAR archive extension. The examples distinguish archive-level effects from member-level effects.

What Is Phar::isValidPharFilename() Method?

Validates whether a filename has an acceptable PHAR archive extension.

Its syntax is:

Phar::isValidPharFilename(string $filename, bool $executable = true)

The parameters are:

• string $filename — The source or destination filesystem path.
• bool $executable = true — Whether the filename should be checked for an executable PHAR instead of a data archive.

Return value: The declared return type is bool. A valid archive filename does not mean its content is safe or valid.

Important: A valid archive filename does not mean its content is safe or valid.

Example 1: Basic Usage

The basic example focuses on the behavior of Phar::isValidPharFilename() Method: validates whether a filename has an acceptable PHAR archive extension. Inputs are defined locally or shown as application-controlled paths.

<?php

var_dump(Phar::isValidPharFilename("application.phar"));

The displayed value, file content or return status depends on the input and surrounding environment. Results involving local paths, identifiers or generated files are not fixed values.

Example 2: A Different Use Case

This second example illustrates another input or execution condition for Phar::isValidPharFilename() Method. Notice the different checks, arguments, or output handling.

<?php

foreach (["bundle.phar", "bundle.zip", "bundle.txt"] as $filename) {
    var_dump([$filename, Phar::isValidPharFilename($filename)]);
}

This variation matters because a valid archive filename does not mean its content is safe or valid.

Practical Example: Working with Archive Entries

The following example demonstrates how Phar::isValidPharFilename() Method fits into a more complete file or archive workflow, including inputs and appropriate checks.

<?php

$archiveName = "release.phar";
if (!Phar::isValidPharFilename($archiveName)) { throw new InvalidArgumentException("Unexpected filename extension"); }

The operation shown is an illustrative script. Adapt the filenames, required permissions, and error handling to your own controlled application environment before running it.

Important Behavior and Edge Cases

• Function behavior: Validates whether a filename has an acceptable PHAR archive extension.
• Limitation: A valid archive filename does not mean its content is safe or valid.

Comparison With Related Functions

Use Phar::isValidPharFilename() Method for the specific behavior described above. The related operation, Phar::canWrite(), serves a different purpose; do not substitute it unless that different behavior is intended.

Common Beginner Mistakes

Key Takeaways

• Validates whether a filename has an acceptable PHAR archive extension.
• A valid archive filename does not mean its content is safe or valid.
• Related operation: Phar::canWrite() — Tests environment-level executable PHAR write capability, not filename validity.

Phar::isValidPharFilename() Method is useful when its specific behavior matches your application requirement. Keep paths controlled, check failures, and handle environment-dependent operations deliberately.