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• System requirements:
  • PHP 5.2 or later.
    • Useful settings (in the php.ini file):
      
      • allow_url_fopen set to On, 
      • register_globals set to Off,
      • magic_quotes_* set to Off,
      • safe_mode set to Off,
      • upload_max_filesize set to "16M" (ou plusor more).
    • Useful Must-have PHP extensions (in the php.ini file): PDO_MySQL, cURL, SimpleXML, mcrypt, GD, OpenSSL, DOM, SOAP, Zip.
    • Useful server tools: cron/crontab, Memcached.
  • MySQL 5.0 or later.
  • Better if:
    
    • Unix/Linux hosting.
    • Apache Web Server 1.3 or later or nginx Web Server.
      • Apache module settings:
        
        • mod_rewrite enabled, 
        • mod_security disabled,
        • mod_auth_basic disabled.
    • At least 64 Mb of RAM dedicated to PHP. The more the better.
• Access codes to your FTP server, your MySQL database
  
  • These should be provided by your web host if you are not doing a local installation.
• Any text editor.
• Any FTP client.
• Any modern Web browser (if using Internet Explorer: at least IE8).

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Note that thanks to the multistore feature, you can have as many stores as necessary with a single installation of PrestaShop 1.6, each with its own specific domain name if necessary. You should take that into account when deciding what goes where.
Whatever your plan is, the default store will always reside where PrestaShop itself is located.

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