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hobojjr

undefined function

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Hi,

How can some function be undefined or not found in a php version which supports them?

For example imagettfbbox (PHP 3 >= 3.0.1, PHP 4, PHP 5) is undfed undefined even though my php is  4.4.2.

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The function is part of an extension which may not be installed in your copy of PHP.  In this case it's the GD extension.  The main page for a group of functions will tell you if you need a particular extension to use that set of functions.

At http://sg.php.net/manual/en/ref.image.php you will see:

[quote]To enable GD-support configure PHP --with-gd[=DIR], where DIR is the GD base install directory. To use the recommended bundled version of the GD library (which was first bundled in PHP 4.3.0), use the configure option --with-gd. GD library requires libpng and libjpeg to compile.[/quote]

If you are using a binary distribution, then how you enable this extension will depend on your distribution.

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