(PHP 4 >= 4.3.0, PHP 5, PHP 7)
gd_info — Retrieve information about the currently installed GD library
Gets information about the version and capabilities of the installed GD library.
Returns an associative array.
| Attribute | Meaning | 
|---|---|
| GD Version | string value describing the installed libgd version. | 
| FreeType Support | boolean value. TRUEif FreeType Support is installed. | 
| FreeType Linkage | string value describing the way in which
        FreeType was linked. Expected values are: 'with freetype',
        'with TTF library', and 'with unknown library'.  This element will
        only be defined if FreeType Support evaluated to TRUE. | 
| T1Lib Support | boolean value. TRUEif T1Lib support is included. | 
| GIF Read Support | boolean value. TRUEif support for reading GIF
        images is included. | 
| GIF Create Support | boolean value. TRUEif support for creating GIF
        images is included. | 
| JPEG Support | boolean value. TRUEif JPEG support is included. | 
| PNG Support | boolean value. TRUEif PNG support is included. | 
| WBMP Support | boolean value. TRUEif WBMP support is included. | 
| XBM Support | boolean value. TRUEif XBM support is included. | 
| WebP Support | boolean value. TRUEif WebP support is included. | 
Note:
Previous to PHP 5.3.0, the JPEG Support attribute was named JPG Support.
Example #1 Using gd_info()
<?php
var_dump(gd_info());
?>
The above example will output something similar to:
array(10) {
  ["GD Version"]=>
  string(24) "bundled (2.1.0 compatible)"
  ["FreeType Support"]=>
  bool(false)
  ["T1Lib Support"]=>
  bool(false)
  ["GIF Read Support"]=>
  bool(true)
  ["GIF Create Support"]=>
  bool(false)
  ["JPEG Support"]=>
  bool(false)
  ["PNG Support"]=>
  bool(true)
  ["WBMP Support"]=>
  bool(true)
  ["XBM Support"]=>
  bool(false)
  ["WebP Support"]=>
  bool(false)
}
| Version | Description | 
|---|---|
| 5.6.12 | WebP Support added. | 
| 5.3.0 | JPG Support attribute renamed to JPEG Support. |