


How to Get File Size of Files Over 2GB in PHP Without External Tools?
Oct 21, 2024 pm 04:35 PMGetting File Size of Files Larger than 2 GB in PHP Without External Programs
Obtaining the file size of a file exceeding 2 GB can be challenging due to limitations in native PHP functions like filesize() and stat(). However, there are alternative solutions to achieve this without relying on external programs.
Solution: Big File Tools Project
To address this issue, the Big File Tools project was created as an open-source collection of PHP hacks for manipulating files larger than 2 GB. This solution employs various techniques:
- Platform-Specific Shell Commands: The project attempts to use appropriate shell commands based on the platform, such as Windows shell modifiers or the *nix/Mac stat command. This approach ensures cross-platform compatibility.
- Windows COM Interface: For Windows systems, the project leverages the COM interface to retrieve file size information. By accessing the File System Object, it can gather accurate file size data.
- Fallback to File Size: In cases where the above methods fail, the project falls back to using PHP's filesize() function, which may not provide accurate results for files larger than 2 GB.
Code Example
The following code sample demonstrates how to use the filesize64() function from the Big File Tools project to obtain file size information:
<code class="php">function filesize64($file) { // ... (code implementation as described above) } $fileSize = filesize64('path/to/largefile.ext');</code>
By utilizing the Big File Tools project, developers can now retrieve the file size of files larger than 2 GB in PHP, even on 32-bit platforms, without the need for external programs or slow file content reading mechanisms.
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