CODEWITHSUNDEEP
phpinstallation
Jérôme Verstrynge
Jérôme Verstrynge

Reputation: 59616

PHP: How to check whether a library has been properly installed and enabled?

Following another question on SO (I am no PHP expert), I am wondering whether the Zlib library has been properly installed on my local laptop. Documentation says there should be no need to manually install this library, but code using this library does not work.

Documentation mentions a need to configure PHP --with-zlib[=DIR], but for versions below 4.3. I am on 5.2.17. I have checked php.ini, but I see no reference to it. My PHP system has been installed with Acquia Dev Desktop.

How can I check whether the Zlib library has been properly installed and enabled on my local PC? Where should I take a look at? What should I look for? Thanks.

Upvotes: 7

Views: 26515

Answers (3)

Jeffrey Brewster
Jeffrey Brewster

Reputation: 161

Make sure that, if you are using DevDesktop, you are referencing the Application/Devdesktop/php# version of PHP(links within DD prefs) (my dev machine has three: Mac OS, HomeBrew, and Acquia DevD)..

I used Homebrew to tap that ^ keg and install the plugin (Mac).

Upvotes: 0

Andreas Wong
Andreas Wong

Reputation: 60584

Unless I'm missing something:

var_dump(function_exists('gzclose')); // or any gz-related functions

Or to be more specific and correct 

if(extension_loaded('zlib'))

http://sg.php.net/manual/en/function.extension-loaded.php

Upvotes: 12

Adam
Adam

Reputation: 36723

You can use phpinfo() to get full information about libraries

<?php
   phpinfo();
?>

or in your PHP code test for a given function

if (function_exists("gzcompress")) {
  echo "OK";
} else {
  die("zlib missing");
}

Upvotes: 13

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