Retrieving GD Library Information with PHP's gd_info Function

The gd_info() function in PHP returns an associative array that describes the version and supported features of the GD graphics library installed on the server.

It provides keys such as GD Version, FreeType Support, T1Lib Support, GIF Read Support, GIF Create Support, JPG Support, PNG Support, WBMP Support, and XBM Support, each indicating the library's capabilities.

Example usage:

<?php
var_dump(gd_info());
?>

Typical output of the above call looks like:

array(9) {
  ["GD Version"]=> string(24) "bundled (2.0 compatible)"
  ["FreeType Support"]=> bool(false)
  ["T1Lib Support"]=> bool(false)
  ["GIF Read Support"]=> bool(true)
  ["GIF Create Support"]=> bool(false)
  ["JPG Support"]=> bool(false)
  ["PNG Support"]=> bool(true)
  ["WBMP Support"]=> bool(true)
  ["XBM Support"]=> bool(false)
}

This output confirms which image formats and features are available, allowing developers to make informed decisions when processing images with GD.