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I am getting a strange error message with the following piece of PHP code (I am not a PHP expert): if ( $file_loc != NULL ) { if ( file_exists($file_loc) ) { printf(" file exists"); $handle = fopen($file_loc, "rb"); $contents = fread($handle, filesize($file_loc)); fclose($handle); $result = gzdecode($contents); } } I am basically trying to load text content from a gzipped file. I get the following error: Fatal error: Call to undefined function gzdecode() in ...\sites\MyScripts\fw2.php on line 80 Yet, when I take a look at documentation , it does not seem like I would need to include an extra library, or am I being wrong? How can I solve this issue? UPDATE Following another question to check whether this library is installed on my PC, the answer is yes, it is. From PHP info: So this is getting more and more confusing... UPDATE II I have tried: <?php echo phpversion().", "; if (function_exists("gzdecode")) { echo "gzdecode OK, "; } else { echo "gzdecode no OK, "; } if (extension_loaded('zlib')) { echo "zlib extension loaded "; } else { echo "zlib extension not loaded "; } ?> and I get: 5.2.17, gzdecode no OK, zlib extension loaded

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