(PHP 4 >= 4.3.0, PHP 5, PHP 7)
Retrieve information about the currently installed GD library
array gd_info ( void )
Gets information about the version and capabilities of the installed GD library.
Returns:
Returns an associative array.
| Attribute | Meaning |
|---|---|
| GD Version | string value describing the installed libgd version. |
| FreeType Support |
boolean value. TRUE if 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. TRUE if T1Lib support is included. |
| GIF Read Support |
boolean value. TRUE if support for reading GIF images is included. |
| GIF Create Support |
boolean value. TRUE if support for creating GIF images is included. |
| JPEG Support |
boolean value. TRUE if JPEG support is included. |
| PNG Support |
boolean value. TRUE if PNG support is included. |
| WBMP Support |
boolean value. TRUE if WBMP support is included. |
| XBM Support |
boolean value. TRUE if XBM support is included. |
| WebP Support |
boolean value. TRUE if WebP support is included. |
Note:
Previous to PHP 5.3.0, the JPEG Support attribute was named JPG Support.
Changelog:
5.6.12
WebP Support
5.3.0
JPG Support JPEG Support
Examples:
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)
}
See also:
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