{"id":907,"date":"2026-06-29T16:26:01","date_gmt":"2026-06-29T13:26:01","guid":{"rendered":"https:\/\/presta.site\/blog\/?p=907"},"modified":"2026-06-29T16:26:01","modified_gmt":"2026-06-29T13:26:01","slug":"comment-modifier-les-parametres-de-connexion-a-la-base-de-donnees-dans-prestashop","status":"publish","type":"post","link":"https:\/\/presta.site\/blog\/fr\/comment-modifier-les-parametres-de-connexion-a-la-base-de-donnees-dans-prestashop\/","title":{"rendered":"Comment modifier les param\u00e8tres de connexion \u00e0 la base de donn\u00e9es dans PrestaShop"},"content":{"rendered":"

Le plus souvent, vous pouvez avoir besoin de modifier les param\u00e8tres de la base de donn\u00e9es apr\u00e8s un changement d’h\u00e9bergement.
\nVoici comment vous pouvez faire cela :<\/p>\n


\nSoyez prudent avec ces param\u00e8tres. Une configuration incorrecte cassera votre site.<\/strong><\/p>\n

PrestaShop 1.7<\/h2>\n
    \n
  1. \u00c0 l’aide de votre client FTP ou gestionnaire de fichiers, naviguez jusqu’\u00e0 la racine de PrestaShop<\/b> et ouvrez ce fichier : \/app\/config\/parameters.php<\/strong><\/li>\n
  2. Trouvez les lignes avec les param\u00e8tres database_host<\/strong>, database_name<\/strong>, database_user<\/strong> et database_password<\/strong>.\n<\/li>\n
  3. Remplacez les valeurs existantes de ces param\u00e8tres par les nouvelles.<\/li>\n
  4. Enregistrez le fichier et t\u00e9l\u00e9versez-le \u00e0 nouveau sur le serveur.<\/li>\n

    Tout est fait ! Ouvrez votre site dans le navigateur et v\u00e9rifiez s’il fonctionne.\n<\/ol>\n

    IMPORTANT :<\/b> il se peut parfois que vous deviez vider manuellement le cache du site pour appliquer les param\u00e8tres. Supprimez tout le contenu<\/b> du dossier “\/var\/cache\/” situ\u00e9 \u00e0 la racine du site. Vous pouvez le faire en utilisant le gestionnaire de fichiers de votre h\u00e9bergement ou par FTP. “\/var\/cache\/” contient les dossiers “dev”, “prod” et similaires. Faites attention de ne rien supprimer d’autre.<\/b><\/p>\n

    Voici un exemple de configuration :<\/p>\n

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    <\/div><\/td>
    <?php<\/span> return<\/span> array<\/span><\/a> (<\/span>
    \n  'parameters'<\/span> =><\/span>
    \n      array<\/span><\/a> (<\/span>
    \n    'database_host'<\/span> =><\/span> '127.0.0.1'<\/span>,<\/span>
    \n    'database_port'<\/span> =><\/span> ''<\/span>,<\/span>
    \n    'database_name'<\/span> =><\/span> 'your_database_name'<\/span>,<\/span>
    \n    'database_user'<\/span> =><\/span> 'your_database_user'<\/span>,<\/span>
    \n    'database_password'<\/span> =><\/span> 'your_database_password'<\/span>,<\/span>
    \n    'database_prefix'<\/span> =><\/span> 'ps_'<\/span>,<\/span>
    \n    'database_engine'<\/span> =><\/span> 'InnoDB'<\/span>,<\/span>
    \n    'mailer_transport'<\/span> =><\/span> 'smtp'<\/span>,<\/span>
    \n    'mailer_host'<\/span> =><\/span> '127.0.0.1'<\/span>,<\/span>
    \n    'mailer_user'<\/span> =><\/span> NULL<\/span>,<\/span>
    \n    'mailer_password'<\/span> =><\/span> NULL<\/span>,<\/span>
    \n    'secret'<\/span> =><\/span> 'Vz6rVXVYNWYt7E6Fvfvdfvg34MCdc97h3IttReewVIxNOu7wHAoS'<\/span>,<\/span>
    \n    'ps_caching'<\/span> =><\/span> 'CacheMemcache'<\/span>,<\/span>
    \n    'ps_cache_enable'<\/span> =><\/span> false<\/span>,<\/span>
    \n    'ps_creation_date'<\/span> =><\/span> '2017-05-22'<\/span>,<\/span>
    \n    'locale'<\/span> =><\/span> 'en-US'<\/span>,<\/span>
    \n    'cookie_key'<\/span> =><\/span> 'xduROM3yvjDSym43CvfdvFDVD47YG8zCrVruNFjjZ3NUb7Ut9'<\/span>,<\/span>
    \n    'cookie_iv'<\/span> =><\/span> '7kBvdfvgh'<\/span>,<\/span>
    \n    'new_cookie_key'<\/span> =><\/span> 'def00000766ffa61aae49b279evfsdvsdfvsfdvfdvwerr324r3frdfveb1afedc8702a964f0a1f6828bf1623ca54efad10ed4bbfb289beec62b01a3062d4c3ce78254157'<\/span>,<\/span>
    \n  )<\/span>,<\/span>
    \n)<\/span>;<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n

    PrestaShop 1.5 – 1.6<\/h2>\n
      \n
    1. \u00c0 l’aide de votre client FTP ou gestionnaire de fichiers, ouvrez ce fichier : \/config\/settings.inc.php<\/strong><\/li>\n
    2. Trouvez les lignes avec les param\u00e8tres _DB_SERVER_<\/strong>, _DB_NAME_<\/strong>, _DB_USER_<\/strong> et _DB_PASSWD_<\/strong>.\n<\/li>\n
    3. Remplacez les valeurs existantes de ces param\u00e8tres par les nouvelles.<\/li>\n
    4. Enregistrez le fichier et t\u00e9l\u00e9versez-le \u00e0 nouveau sur le serveur.<\/li>\n

      Tout est fait ! Ouvrez votre site dans le navigateur et v\u00e9rifiez s’il fonctionne.\n<\/ol>\n

      Voici un exemple de configuration :<\/p>\n

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      <\/div><\/td>
      <?php<\/span>
      \ndefine<\/span><\/a>(<\/span>'_DB_SERVER_'<\/span>,<\/span> 'localhost'<\/span>)<\/span>;<\/span>
      \n      define<\/span><\/a>(<\/span>'_DB_NAME_'<\/span>,<\/span> 'your_database_name'<\/span>)<\/span>;<\/span>
      \n      define<\/span><\/a>(<\/span>'_DB_USER_'<\/span>,<\/span> 'your_database_user'<\/span>)<\/span>;<\/span>
      \n      define<\/span><\/a>(<\/span>'_DB_PASSWD_'<\/span>,<\/span> 'your_database_password'<\/span>)<\/span>;<\/span>
      \n      define<\/span><\/a>(<\/span>'_DB_PREFIX_'<\/span>,<\/span> 'ps_'<\/span>)<\/span>;<\/span>
      \n      define<\/span><\/a>(<\/span>'_MYSQL_ENGINE_'<\/span>,<\/span> 'InnoDB'<\/span>)<\/span>;<\/span>
      \n      define<\/span><\/a>(<\/span>'_PS_CACHING_SYSTEM_'<\/span>,<\/span> 'CacheApc'<\/span>)<\/span>;<\/span>
      \n      define<\/span><\/a>(<\/span>'_PS_CACHE_ENABLED_'<\/span>,<\/span> '0'<\/span>)<\/span>;<\/span>
      \n      define<\/span><\/a>(<\/span>'_COOKIE_KEY_'<\/span>,<\/span> 'VydXpBBvqfdVyGyVY44qVfFTvL23AG1szj0Avsd271PtuNw5CbORvvOIs'<\/span>)<\/span>;<\/span>
      \n      define<\/span><\/a>(<\/span>'_COOKIE_IV_'<\/span>,<\/span> 'PIx53ASw'<\/span>)<\/span>;<\/span>
      \n      define<\/span><\/a>(<\/span>'_PS_CREATION_DATE_'<\/span>,<\/span> '2017-05-07'<\/span>)<\/span>;<\/span>
      \n      define<\/span><\/a>(<\/span>'_PS_VERSION_'<\/span>,<\/span> '1.6.1.14'<\/span>)<\/span>;<\/span>
      \n      define<\/span><\/a>(<\/span>'_RIJNDAEL_KEY_'<\/span>,<\/span> '4H8PRpv43fsdDSuZXUx9iLiiwRb2af5'<\/span>)<\/span>;<\/span>
      \n      define<\/span><\/a>(<\/span>'_RIJNDAEL_IV_'<\/span>,<\/span> '8Xav8t+xvdft54D+k\/KI1g=='<\/span>)<\/span>;<\/span>
      \n      define<\/span><\/a>(<\/span>'_PS_DIRECTORY_'<\/span>,<\/span> '\/..\/..\/'<\/span>)<\/span>;<\/span><\/div><\/td><\/tr><\/tbody><\/table><\/div>\n","protected":false},"excerpt":{"rendered":"

      Le plus souvent, vous pouvez avoir besoin de modifier les param\u00e8tres de la base de donn\u00e9es apr\u00e8s un changement d’h\u00e9bergement. Voici comment vous pouvez faire cela :<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-907","post","type-post","status-publish","format-standard","hentry","category-tutoriels-et-guides"],"_links":{"self":[{"href":"https:\/\/presta.site\/blog\/wp-json\/wp\/v2\/posts\/907","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/presta.site\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/presta.site\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/presta.site\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/presta.site\/blog\/wp-json\/wp\/v2\/comments?post=907"}],"version-history":[{"count":1,"href":"https:\/\/presta.site\/blog\/wp-json\/wp\/v2\/posts\/907\/revisions"}],"predecessor-version":[{"id":951,"href":"https:\/\/presta.site\/blog\/wp-json\/wp\/v2\/posts\/907\/revisions\/951"}],"wp:attachment":[{"href":"https:\/\/presta.site\/blog\/wp-json\/wp\/v2\/media?parent=907"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/presta.site\/blog\/wp-json\/wp\/v2\/categories?post=907"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/presta.site\/blog\/wp-json\/wp\/v2\/tags?post=907"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}