Closes a fileinfo resource in older code; it is deprecated in PHP 8.5.
What Is finfo_close() in PHP?
Closes a fileinfo resource in older code; it is deprecated in PHP 8.5.
Its syntax is:
finfo_close(finfo $finfo): boolParameters:
$finfo— Accepted as finfo; required argument.
Return type: bool. Modern PHP uses finfo objects whose lifetime is managed automatically. Avoid relying on finfo_close() in new code.
Availability: Requires fileinfo; legacy procedural function.
Example 1: Basic Usage
<?php
echo class_exists("finfo") ? "Fileinfo available" : "Missing";
Output:
Fileinfo availableModern PHP uses finfo objects whose lifetime is managed automatically. Avoid relying on finfo_close() in new code.
Example 2: A Different Input
<?php
$detector = new finfo(FILEINFO_MIME_TYPE); echo get_debug_type($detector);
Output:
finfoModern PHP uses finfo objects whose lifetime is managed automatically. Avoid relying on finfo_close() in new code.
Practical Example: Applying It in a Program
<?php
$detector = new finfo(FILEINFO_MIME_TYPE); echo finfo_buffer($detector, "Hello"); unset($detector);
Output:
text/plainModern PHP uses finfo objects whose lifetime is managed automatically. Avoid relying on finfo_close() in new code.
Important Behavior and Edge Cases
- Key behavior: Modern PHP uses finfo objects whose lifetime is managed automatically. Avoid relying on finfo_close() in new code.
- Environment: Requires fileinfo; legacy procedural function.
Comparison With Related Functions
| Function | Purpose |
|---|---|
finfo_close() | Closes a fileinfo resource in older code; it is deprecated in PHP 8.5. |
finfo_open() | finfo_open() creates a detector; finfo_close() closes its handle. |
Common Beginner Mistakes
| Mistake | Correct Approach |
|---|---|
| Ignoring this behavior: Modern PHP uses finfo objects whose lifetime is managed automatically | Modern PHP uses finfo objects whose lifetime is managed automatically. Avoid relying on finfo_close() in new code. |
Key Takeaways
- Closes a fileinfo resource in older code; it is deprecated in PHP 8.5.
- Modern PHP uses finfo objects whose lifetime is managed automatically. Avoid relying on finfo_close() in new code.
- Requires fileinfo; legacy procedural function.
Summary: Modern PHP uses finfo objects whose lifetime is managed automatically. Avoid relying on finfo_close() in new code.